Last Updated: Feb. 8, 1998
ACC Corporation
400 West Ave.
Rochester, NY 14611
Phone: (716) 987-3300
Fax: (716) 987-3493
ACSI - Albuquerque
505 Marquette
Ste. 1605
Albuquerque, NM 87102
Phone: (505) 243-5005
Fax: (505) 243-3144
ACSI - Annapolis
14405 One Laurel Place
Ste. 200
Laurel, MD 20707
Phone: (301) 617-2500
Fax: (301) 617-2588
ACSI - Birmingham
2001 Park Ave.
Ste. 565
Birmingham, AL 35203
Phone: (205) 263-2274
Fax: (205) 324-6605
ACSI - Chicago
Chicago, IL
ACSI - Colorado Springs
Colorado Springs, CO
ACSI - Columbia, SC
1401 Main Street
Columbia, SC 29201
Phone: (803) 779-6666
Fax: (803) 779-5277
ACSI - El Paso
Texas Commerce Bank Building
201 E. Main St., Ste. 901
El Paso, TX 79901
Phone: (915) 544-9499
Fax: (915) 544-9585
ACSI - Forth Worth
301 Commerce St.
Ste. 1310
Forth Worth, TX 76102
Phone: (817) 338-1555
Fax: (817) 338-2739
ACSI - Greenville
2 Hampton Ave.
Greenville, SC 29601
Phone: (864) 242-6666
Fax: (864) 370-3011
ACSI - Irving
2300 Valley View La.
Ste. 1025
Irving, TX 75062
Phone: (972) 570-3999
ACSI - Jackson
188 E. Capitol St.
Ste. 350
Jackson, MS 39201
Phone: (601) 354-1555
Fax: (601) 354-3136
ACSI - Las Vegas
230 Las Vegas Blvd. S.
Las Vegas, NV 89101
Phone: (702) 474-7100
Fax: (702) 474-6900
ACSI - Lexington
333 W. Vine St.
Ste. 330
Lexington, KY 40507
Phone: (606) 243-9941
Fax: (606) 258-2878
ACSI - Little Rock
Union National Plaza Bldg.
124 W. Capital, Ste. 600
Little Rock, AR 72201
Phone: (501) 376-1800
Fax: (501) 376-1880
ACSI - Louisville
Meidinger Tower
462 S. 4th St., Ste. 1770
Louisville, KY 40202-3445
Phone: (502) 583-6666
Fax: (502) 583-9709
ACSI - Mobile
103 Dauphin St.
Ste. 810
Mobile, AL 36602
Phone: (334) 694-7900
Fax: (334) 694-7515
ACSI - Montgomery
One Court Square
Ste. 245
Montgomery, AL 36104
Phone: (334) 263-6778
Fax: (334) 263-6711
ACSI - Tampa
400 N. Tampa St.
Ste. 900
Tampa, FL 33602
Phone: (813) 277-0700
Fax: (813) 277-0033
ACSI - Tucson
Bank of America Plaza
33 N. Stone Ave., Ste. 1200
Tucson, AZ 85701
Phone: (520) 740-1800
ACSI - Tulsa
100 W. Fifth St.
Ste. 315
Tulsa, OK 74103
Phone: (918) 583-4745
Fax: (918) 583-4955
Advanced Radio Telecom
1200 19th St. NW
Ste. 560
Washington, DC 20036
Phone: (202) 466-5278
Fax: (202) 466-4444
Advanced Radio Telecom - Bellevue
500 108th Ave. NE
Ste. 1910
Bellevue, WA 98004
Phone: (425) 688-8700
Fax: (425) 637-2891
Advanced Radio Telecom - Boston
Boston, MA
Phone: (781) 938-1441
Fax: (781) 938-9857
Advanced Radio Telecom - Cleveland
Cleveland, OH
Phone: (216) 221-5511
Fax: (216) 221-0339
Advanced Radio Telecom - Denver
Denver, CO
Phone: (303) 534-7577
Fax: (303) 534-7581
Advanced Radio Telecom - Kansas City, KS
Kansas City, KS
Phone: (913) 323-6811
Fax: (913) 323-6812
Advanced Radio Telecom - Los Angeles
Los Angeles, CA
Phone: (714) 365-5760
Fax: (714) 365-0075
Advanced Radio Telecom - Minneapolis
Minneapolis, MN
Phone: (612) 921-8510
Fax: (612) 921-2309
Advanced Radio Telecom - Nashville
Nashville, TN
Phone: (615) 777-2781
Fax: (615) 777-2790
Advanced Radio Telecom - New York
New York, NY
Phone: (212) 972-9255
Fax: (212) 972-1410
Advanced Radio Telecom - Phoenix
Phoenix, AZ
Phone: (602) 835-9211
Fax: (602) 835-9217
Advanced Radio Telecom - Portland
Portland, OR
Phone: (503) 229-4440
Fax: (503) 229-4441
Advanced Radio Telecom - San Diego
San Diego, CA
Phone: (619) 558-0103
Fax: (619) 558-0013
Advanced Radio Telecom - San Francisco
San Francisco, CA
Phone: (415) 495-0357
Fax: (415) 777-5477
Advanced Radio Telecom - Washington, DC
1200 19th St. NW
Ste. 560
Washington, DC 20036
Phone: (202) 466-5278
Fax: (202) 466-4444
Allegiance - Dallas/Ft. Worth
c/o 1950 Stemmons Frwy.
Ste. 5001
Dallas, TX 75207
Phone: (214) 853-7100
Fax: (214) 853-7110
Allegiance Telecom, Inc.
1950 N. Stemmons Frwy.
Ste. 3026
Dallas, TX 75207
Phone: (214) 853-7100
Fax: (214) 853-7110
AlterNet - Jacksonville, FL
4455 Baymeadows Rd
Jacksonville, FL 32217
Phone: (904) 448-3390
Fax: (904) 731-8699
AlterNet of Virginia
8145 Staples Mill Road
Richmond, VA 23228
Phone: (804) 261-0060
Fax: (804) 261-0195
American Communications Services Inc. (ACSI)
131 National Business Pkwy.
Ste. 100
Annapolis Junction, MD 20701
Phone: 301-617-4200
Fax: 301-617-4279
American MetroComm
1615 Poydras St.
Ste. 1050
New Orleans, LA 70112
Phone: (504) 598-9000
Fax: (504) 598-9010
American MetroComm - Baton Rouge
2900 Westbork Dr.
Ste. 200
Baton Rouge, LA 70827
Phone: (504) 298-1262
American MetroComm - Gulfport
2301 14th St.
Ste. 572
Gulfport, MS 39501
Phone: (228) 214-4441
American Telco
14114 Dallas Pkwy., Ste. 411
Dallas, TX 75240
Phone: 972-980-7272
Fax: 972-980-7291
Birch Telecom Inc.
1000 Walnut
Ste. 1220
Kansas City, MO 64106
Phone: (816) 842-7560
Fax: (816) 842-7507
Brooks Fiber - Albuquerque
215 Central Ave. NW
Ste. 2B
Albuquerque, NM 87102
Phone: (505) 244-1001
Fax: (505) 244-1022
Brooks Fiber - Austin
Austin, TX
Phone: (512) 494-0122
Fax: (512) 480-0718
Brooks Fiber - Bakersfield
1415 18th St.
Ste. 110
Bakersfield, CA 93301
Phone: (805) 328-8800
Fax: (905) 328-8801
Brooks Fiber - Dallas
2477 Gateway Drive
Irving, TX 75063-2746
Phone: (972) 753-1900
Fax: (972) 550-0936
Brooks Fiber - Fort Worth
2221 E. Lamar
Ste. 710
Fort Worth, TX 76006
Phone: (817) 633-6063
Fax: (817) 695-1424
Brooks Fiber - Fresno
7108 N. Fresno St.
Suite 250
Fresno, CA 93720
Phone: (209) 437-1575
Fax: (209) 437-1570
Brooks Fiber - Grand Rapids
2855 Oak Industrial Dr. NE
Grand Rapids, MI 49506
Phone: (616) 224-4300
Fax: (616) 224-5100
Brooks Fiber - Hartford
18 Bushnell Plaza
One Gold Street
Hartford, CT 06103
Phone: (860) 808-1000
Brooks Fiber - Jackson
162 E. Amite St.
Suite 101
Jackson, MS 39201
Phone: (601) 718-7800
Fax: (601) 718-7818
Brooks Fiber - Kansas City
324 E. 11th St.
Ste. 1209
Kansas City, MO 64106
Phone: (816) 410-9000
Fax: (816) 221-6106
Brooks Fiber - Knoxville
620 Market St.
Ste. 600
Knoxville, TN 37902
Phone: (423) 521-9988
Fax: (423) 521-7883
Brooks Fiber - Lansing
5688 W. Grand River Ave.
Lansing, MI 49806
Phone: (517) 318-8888
Fax: (517) 327-0063
Brooks Fiber - Little Rock
425 W. Capitol
Ste. 3104
Little Rock, AR 72201
Phone: (501) 372-2600
Fax: (501) 372-2681
Brooks Fiber - Oklahoma City
210 Park Ave.
Ste. 2230
Oklahoma City, OK 73102
Phone: (405) 415-0100
Fax: (405) 415-0190
Brooks Fiber - Providence
One Old Stone Square
5th Floor
Providence, RI 02903
Phone: (401) 751-8290
Fax: (401) 751-8292
Brooks Fiber - Reno
200 S. Virginia
Ste. 700
Reno, NV 89509
Phone: (702) 324-6700
Fax: (702) 362-8244
Brooks Fiber - Sacramento
9323 Tech Center Dr.
Ste. 1400
Sacramento, CA 95826
Phone: (916) 431-1800
Fax: (916) 431-1848
Brooks Fiber - Salt Lake City
175 SW Temple
Ste. 130
Salt Lake City, UT 84101
Brooks Fiber - San Antonio
San Antonio, TX
Phone: (210) 224-6994
Brooks Fiber - San Francisco
101 California
Ste. 2550
San Francisco, CA 94111
Phone: (415) 989-8700
Fax: (415) 989-8776
Brooks Fiber - San Mateo
1660 S. Amphlett
Ste. 330
San Mateo, CA 94402
Phone: (415) 358-6440
Fax: (415) 286-4299
Brooks Fiber - Springfield, MA
1 Federal St.
Building 102, 3rd floor
Springfield, MA 01115
Phone: 413-732-7855
Fax: 413-736-3282
Brooks Fiber - Springfield, MO
300 S. John Q. Hammons Pkwy.
Ste. 101
Springfield, MO 65806
Phone: (417) 866-4442
Fax: (417) 866-4447
Brooks Fiber - St. Louis
425 S. Woods Mill Rd.
Ste. 300
St. Louis, MO 63017
Phone: (800) 799-8914
Fax: (314) 878-3211
Brooks Fiber - Stamford
Stamford, CT
Phone: (203) 921-1482
Fax: (203) 921-1486
Brooks Fiber - Stockton
400 E Main
Ste. 750
Stockton, CA 95290
Phone: (209) 943-3636
Fax: (209) 943-3662
Brooks Fiber - Toledo
26 N. 11th St.
Toledo, OH 43624
Phone: (419) 324-5000
Fax: (419) 324-5022
Brooks Fiber - Tulsa
4500 S. 129th East Ave.
Ste. 185
Tulsa, OK 74145
Phone: (918) 664-7711
Fax: (918) 621-1625
Brooks Fiber - Tuscon
6245 E. Broadway Blvd.
Ste. 520
Tucson, AZ 85711
Phone: (520) 662-8800
Fax: (520) 748-0490
Brooks Fiber - Western Regional Office
464 Oakmead Pkwy.
Sunnyvale, CA 94086-4708
Phone: (408) 222-2300
Fax: (408) 222-2355
Brooks Fiber Communications
425 S. Woods Mill Rd.
Ste. 300
Town & Country, MO 63017
Phone: (314) 878-1616
Fax: (314) 878-3211
Cablevision Lightpath Inc.
111 New South Rd.
Hicksville, NY 11801
Phone: (516) 393-3200
Fax: (516) 393-0455
Climax Telephone Company
110 N Main St.
Climax, MI 49034
Phone: (616) 746-4411
Fax: (616) 746-9914
COMAV Corporation
Point West Place
111 Speen St.
Framingham, MA 01701
Phone: (888) 652-6628
Fax: (888) 332-6628
Cox Fibernet
1400 Lake Hearn Dr.
Atlanta, GA 30319
Phone: (404) 843-5000
Fax: (404) 843-5777
Cox Fibernet - Hampton Roads
234 Clearfield Avenue
Virginia Beach, VA 23462
Phone: (757) 369-6500
Fax: (757) 369-4500
Cox Fibernet - New Orleans
2120 Canal St
New Orleans, LA 70112
Phone: (504) 734-7345
Fax: (504) 522-0329
Cox Fibernet - Oklahoma City
210 Park Ave.
Ste. 2640
Oklahoma City, OK 73102
Phone: (405) 556-6333
Fax: (405) 236-2428
Dublin GST Lightwave Inc.
580 Executive Center
11501 Dublin Blvd. No. 200
Dublin, CA 94568
Phone: (510) 551-5044
Fax: (510) 551-5042
Electric Lightwave - Phoenix
2600 N. Central Ave.
Ste. 300
Phoenix, AZ 85004
Phone: (602) 277-1122
Fax: (602) 277-8343
Electric Lightwave - Portland
400 SW 6th Ave.
Ste. 500
Portland, OR 97204
Phone: (503) 972-8330
Fax: (503) 972-8380
Electric Lightwave - Sacramento
650 J St.
Sacramento, CA 95814
Phone: (916) 444-1744
Fax: (916) 444-1589
Electric Lightwave - Salt Lake City
4 Triad Center
Ste. 200
Salt Lake City, UT 84180
Phone: (801) 521-3000
Fax: (801) 521-0640
Electric Lightwave - Seattle
1218 Third Ave.
Ste. 915
Seattle, WA 98010
Phone: (206) 812-2000
Fax: (206) 812-0252
Electric Lightwave, Inc.
8100 NE Parkway Dr.
Suite 150
Vancouver, WA 98662
Phone: (360) 892-1000
Fax: (360) 253-8934
Fiber South - Raleigh/Research Triangle
4300 Six Forks Rd.
Ste. 210
Raleigh, NC 27609
Phone: (919) 782-0785
Fax: (919) 510-7120
Fiber South Communications
4300 Six Forks Rd.
Ste. 210
Raleigh, NC 27609
Phone: (919) 782-0785
Fax: (919) 510-7120
FiberNet Telecom Group Inc.
121 Erie Canal Dr.
suite A
Rochester, N.Y. 14626
Phone: (716) 225-0440
Fax: (716) 225-0638
First Regional TeleCom LLC
2814 Upton St NW
Washington, DC 20008
Phone: (202) 244-1254
Fax: (202) 362-0183
Focal Communications -- Chicago
200 N. LaSalle St.
Chicago, IL 60601
Phone: (312) 895-8400
Fax: (312) 895-8403
Focal Communications Corporation
200 N. LaSalle St., Ste. 820
Chicago, IL 60601
Phone: (312) 895-8400
Fax: (312) 895-8403
Genesis Communications International, Inc.
11995 El Camino Real
Ste. 102
San Diego, CA 92130-2565
Phone: (619) 792-2400
Fax: (619) 794-0050
Global NAPs
89 Access Rd.
suite B
Norwood, MA 02062
Phone: (617) 255-7300
Fax: (617) 769-1012
GST Telecom - Albuquerque, NM
3830 Singer Blvd, NE
Ste. 1000
Albuquerque, NM 87109
Phone: (505) 345-9591
Fax: (505) 345-9597
GST Telecom - Boise, ID
PO Box 1755
Boise, ID 83701
Phone: (208) 389-9695
Fax: (208) 389-9935
GST Telecom - Fresno, CA
575 E Locust
Ste. 120
Fresno, CA 93704
Phone: (209) 437-1400
Fax: (209) 437-1424
GST Telecom - Kapolei, HI
91-238 Kalaeloa Blvd.
Building One
Kapolei, HI 96707
Phone: (808) 682-5266
Fax: (808) 682-2878
GST Telecom - Riverside, CA
3403 Tenth Street
Ste. 630
Riverside, CA 92501
Phone: (909) 276-2445
Fax: (909) 984-0944
GST Telecom - Spokane, WA
601 W. Main St.
Ste. 500
Spokane, WA 99201
Phone: (509) 456-4600
Fax: (509) 456-2094
GST Telecom - Tucson, AZ
4555 South Palo Verde Road
Ste. 163
Tucson, AZ 85714
Phone: (520) 745-0555
Fax: (520) 745-6873
GST Telecommunications, Inc.
4317 NE Thurston Way
Vancouver, WA 98662
Phone: (360) 254-4700
Fax: (360) 260-2075
Hyperion of Harrisburg
1037 N 7th Street
Harrisburg, PA 17102-1416
Phone: (717) 214-2100
Fax: (717) 214-2130
Hyperion of Tennessee
2001 Hayes St.
Nashville, TN 37203
Phone: (615) 263-1100
Fax: (615) 259-9017
Hyperion of Vermont
18 Avenue B
Williston, VT 05495
Phone: (802) 865-1113
Fax: (802) 865-2276
Hyperion of Virginia
855 W. Main Street
Suite 103
Charlottesville, VA 22903
Phone: (804) 817-8170
Fax: (804) 293-9263
Hyperion Telecommunications (Pittsburgh)
DDI Plaza Two
500 Thomas St., Ste. 400
Bridgeville, PA 15017-2838
Phone: (412) 221-1888
Fax: (412) 221-6642
Hyperion Telecommunications, Inc. HQ
5 West Third St.
Coudersport, PA 16915
Phone: (814) 274-9830
Fax: (814) 274-9863
ICG Communications Inc.
9605 E. Maroon Cir.
Englewood, CO 80112
Phone: (303) 572-5960
Fax: (303) 706-1637
ICG Telecom - Akron
Akron, OH
Phone: (800) 475-8320
Fax: (216) 447-0666
ICG Telecom - Birmingham
Birmingham, AL
Phone: (205) 322-4440
Fax: (205) 322-4401
ICG Telecom - Charlotte
Charlotte, NC
Phone: (704) 342-8500
Fax: (704) 342-8510
ICG Telecom - Cleveland
Cleveland, OH
Phone: (800) 475-8320
Fax: (216) 447-0666
ICG Telecom - Colorado Springs
Colorado Springs, CO
Phone: (719) 630-3300
Fax: (719) 632-2425
ICG Telecom - Dayton
Dayton, OH
Phone: (614) 224-2004
Fax: (614) 224-0949
ICG Telecom - Denver
9605 E Maroon Circle
Englewood, CO 80112
Phone: (303) 572-5960
Fax: (303) 572-2006
ICG Telecom - Los Angeles
Los Angeles, CA
Phone: (213) 627-2173
Fax: (213) 627-2813
ICG Telecom - Louisville
Louisville, KY
Phone: (502) 583-4190
Fax: (502) 583-1320
ICG Telecom - Nashville
Nashville, TN
Phone: (615) 321-8786
Fax: (615) 321-8791
InfoTel Communications
P.O. Box 2838
Baxter, MN 56425
Phone: (218) 825-7880
Fax: (218) 828-3150
Intermedia Communications Inc.
3625 Queen Palm Drive
Tampa, FL 33619
Phone: (813) 829-0011
Fax: (813) 829-2470
Intermedia Communications of Atlanta
Atlanta, GA
Phone: (770) 426-1600
Fax: (770) 429-5725
Intermedia Communications of Cincinnati
Cincinnati, OH
Phone: (513) 458-5500
Fax: (513) 458-5505
Intermedia Communications of Huntsville
Huntsville, AL
Phone: (205) 830-8313
Fax: (205) 830-4044
Intermedia Communications of Jacksonville
Jacksonville, MS
Phone: (904) 645-7141
Fax: (904) 996-3686
Intermedia Communications of Miami
1921 NW 87th Ave.
Miami, FL 33172
Phone: (305) 470-2424
Fax: (305) 908-2724
Intermedia Communications of Orlando
Orlando, FL
Phone: (407) 425-3333
Intermedia Communications of Raleigh/Durham/Triangle Park
Raleigh, NC
Phone: (919) 941-0008
Fax: (919) 425-2444
Intermedia Communications of St. Louis
3660 S. Geyer Road
St. Louis, MO 63127
Phone: (314) 984-5090
Fax: (314) 984-5002
Intermedia Communications of Tampa
3625 Queen Palm Drive
Tampa, FL 33619
Phone: (813) 288-9005
Fax: (813) 289-0481
International Telemanagement Group Inc. (ITG)
206 E Market Street
Lima, OH 45802
Phone: (419) 226-8158
Fax: (419) 228-0009
Kansas City FiberNet
1111 Main Street
Suite 300
Kansas City, MO 64105
Phone: (816) 472-8888
Fax: (816) 472-8866
KMC Telecom Inc.- Augusta
Augusta Riverfront Center
One Tenth Street, Suite 480
Augusta, GA 30901
Phone: (706) 823-0032
Fax: (706) 823-1230
KMC Telecom Inc.- Baton Rouge
5758 Essen Lane
Baton Rouge, LA 70810
Phone: (504) 757-9100
Fax: (504) 757-8900
KMC Telecom Inc.- Brevard
200 Ocean Avenue
Suite 203
Melbourne, FL 32951
Phone: (407) 725-0111
Fax: (407) 952-9705
KMC Telecom Inc.- Corpus Christi
1231 South Staples Street
Corpus Christi, TX 78401
Phone: (512) 883-3300
Fax: (512) 883-3392
KMC Telecom Inc.- Duluth
3075 Breckinridge Blvd.
Suite 415
Duluth, GA 30096
Phone: (770) 806-4980
Fax: (770) 806-4988
KMC Telecom Inc.- Huntsville
994 Explorer Boulevard
Huntsville, AL 35806
Phone: (205) 922-1000
Fax: (205) 922-9944
KMC Telecom Inc.- Madison
710 E. Mifflin Street
Madison, WI 53703
Phone: (608) 251-7800
Fax: (608) 251-9556
KMC Telecom Inc.- Shreveport
506 Caddo Street
Shreveport, LA 71101
Phone: (318) 424-8000
Fax: (318) 424-8008
KMC Telecom, Inc.
1545 Route 206
Suite 300
Bedminister, NJ 07921-2567
Phone: (908) 719-2200
Fax: (908) 719-2211
Logix Communications
13439 N Broadway Ext
Oklahoma City, OK 73114
Louisville Lightwave
210 Kentucky Towers
Louisville, KY 40202
Phone: (502) 568-2439
Fax: (502) 568-1742
MCI
8521 Leesburg Pike
Vienna, VA 22182
Phone: (703) 918-6000
Fax: (703) 918-6601
Atlanta, GA
Phone: (404) 257-5698
Fax: (404) 267-6499
MCI - Baltimore
Baltimore, MD
Phone: (410) 494-6759
Fax: (410) 494-6899
MCI - Boston
Boston, MA
Phone: (617) 375-1147
Fax: (617) 960-5155
MCI - Chicago
Chicago, IL
Phone: (708) 551-2026
Fax: (708) 947-2055
MCI - Cleveland
Cleveland, OH
Phone: (216) 606-7228
Fax: (216) 606-7185
MCI - Denver
707 17th St.
Ste. 4200
Denver, CO
Phone: (303) 773-7378
Fax: (303) 773-4161
MCI - Detroit
Detroit, MI
Phone: (810) 728-5381
Fax: (810) 728-5252
MCI - Ft. Lauderdale
Ft. Lauderdale, FL
MCI - Hartford
Hartford, CT
Phone: (860) 904-4704
Fax: (860) 904-4777
MCI - Los Angeles
Los Angeles, CA
Phone: (310) 568-1282
Fax: (310) 568-1204
MCI - Miami
Miami, FL
Phone: (305) 441-2265
Fax: (800) 444-1414
MCI - Milwaukee
Milwaukee, WI
Phone: (414) 207-7628
Fax: (414) 207-7655
MCI - New York City
New York, NY
Phone: (212) 519-4306
Fax: (212) 519-4523
MCI - Orlando
Orlando, FL
Phone: (407) 541-8223
Fax: (800) 678-5739
MCI - Philadelphia
Philadelphia, PA
Phone: (610) 257-3137
Fax: (610) 257-7178
MCI - Pittsburgh
Pittsburg, PA
Phone: (412) 505-4354
Fax: (412) 505-4388
MCI - Portland
Portland, OR
Phone: (503) 403-4712
Fax: (503) 403-4747
MCI - San Diego
San Diego, CA
Phone: (714) 755-2566
Fax: (714) 755-2597
MCI - San Francisco
San Francisco, CA
Phone: (415) 228-1043
Fax: (415) 228-1411
MCI - Seattle
Seattle, WA
Phone: (206) 777-2326
Fax: (206) 777-6920
MCI - Tampa
Tampa, FL
Phone: (813) 571-7119
Fax: (800) 950-2329
MCI - Washington D.C.
1801 Pensylvania Ave. NW
8th Floor
Washington, D.C. 20006
MediaOne for Business
5401 Staples Mill Road
Richmond, VA 23228
Phone: (804) 915-2500
Fax: (804) 915-2504
MediaOne of Jacksonville
4455 Baymeadows Road
Jacksonville, FL 32217
Phone: (904) 448-3390
Fax: (904) 731-8699
MetroComm AxS
50 W. Broad St, Ste. M-18
Columbus, OH 43215
Phone: (614) 221-9230
Fax: (614) 221-2884
MFS - New Haven
New Haven, CT
Phone: (203) 495-6000
Fax: (860) 244 8325
MFS - Sacramento
Sacramento, CA
Phone: (916) 325-2300
Fax: (916) 325-2309
MFS Telecom - Albany
80 State Street
5th Floor
Albany, NY 12207
Phone: (518) 462-0863
Fax: (518) 462-3265
MFS Telecom - Atlanta
Six Concourse Parkway
Suite 2100
Atlanta, GA 30328
Phone: (770) 393-9755
Fax: (404) 395-0466
MFS Telecom - Baltimore
6 St. Paul Centre
Suite 1200
Baltimore, MD 21202
Phone: (410) 783-5555
Fax: (410) 332-1453
MFS Telecom - Boston
101 Federal Street
17th Floor
Boston, MA 02110
Phone: (617) 345-0092
Fax: (617) 531-7470
MFS Telecom - Buffalo
325 Delaware Avenue
3rd Floor
Buffalo, NY 14202
Phone: (716) 845-9200
Fax: (716) 849-0745
MFS Telecom - Chicago
180 N Stetson
Suite 1320
Chicago, IL 60601
Phone: (312) 803-2000
Fax: (312) 946-0265
MFS Telecom - Cleveland
1111 Superior Avenue
Suite 760
Cleveland, OH 44114
Phone: (216) 241-5511
Fax: (216) 241-7477
MFS Telecom - Dallas
InfoMart
1950 Stemmons Fwy, Suite 4021
Dallas, TX 75201
Phone: (214) 672-7168
Fax: (214) 880-0226
MFS Telecom - Denver
8765 E. Orchard Road
Suite 708
Englewood, CO 80111
Phone: (303) 220-9077
Fax: (303) 850-1778
MFS Telecom - Detroit
21500 Melrose Avenue
Southfield, MI 48075
Phone: (810) 208-6200
Fax: (810) 208-6373
MFS Telecom - Hartford
185 Asylum Street
4th Floor
Hartford, CT 06103
Phone: (203) 244-8320
Fax: (860) 244 8325
MFS Telecom - Houston
600 Travis Street
Suite 1950
Houston, TX 77002
Phone: (713) 236-9637
Fax: (713) 225-3616
MFS Telecom - Indianapolis
Bank One Center/Tower
111 Monument Circle, Suite 200
Indianapolis, IN 46204-5186
Phone: (317) 974-4100
Fax: (317) 974-4113
MFS Telecom - Irvine
19200 Von Karman
Suite 350
Irvine, CA 92712
Phone: (714) 756-6500
Fax: (714) 756-6512
MFS Telecom - King of Prussia
Walnut Hill Plaza
150 S. Warner Road, #432
King of Prussia, PA 19406
Phone: (610) 254-8100
Fax: (610) 293-8015
MFS Telecom - Los Angeles
800 West Sixth Street
Suite 1150
Los Angeles, CA 90017
Phone: (213) 489-4637
Fax: (213) 489-3712
MFS Telecom - Memphis
800 Ridge Lake Boulevard
3rd Floor
Memphis, TN 38120
Phone: (901) 761-1177
Fax: (901) 766-0286
MFS Telecom - Miami
8830 NW 18th Terrace
America's Gateway Center
Miami, FL 33172
Phone: (305) 639-4800
Fax: (303) 639-4999
MFS Telecom - Minneapolis
920 Second Ave. South
Suite 1520
Minneapolis, MN 55402
Phone: (612) 333-4000
Fax: (612) 338-0714
MFS Telecom - Naperville
1240 East Diehl Rd
Naperville, IL 60563
Phone: (708) 955-0200
MFS Telecom - New Jersey
Jefferson Plaza
110 S. Jefferson Road
Whippany, NJ 07981
Phone: (201) 386-9040
Fax: (212) 425-6575
MFS Telecom - New York
33 Whitehall Street
15th Floor
New York, NY 10004
Phone: (212) 425-2424
Fax: (212) 768-7893
MFS Telecom - Oakland
1999 Harrison St
Suite 820
Oakland, CA 94612
Phone: (510) 466-6050
MFS Telecom - Orlando
1060 Maitland Center Commons
Suite 100
Maitland, FL 32751
Phone: (407) 660-8000
Fax: (407) 660-8313
MFS Telecom - Philadelphia
1601 Market Street
Suite 2200
Philadelphia, PA 19103
Phone: (215) 977-8500
Fax: (215) 569-1551
MFS Telecom - Phoenix
3838 North Central
Suite 200
Phoenix, AZ 85012
Phone: (602) 650-1788
Fax: (602) 650-1786
MFS Telecom - Pittsburgh
1001 Liberty Avenue
Suite 700
Pittsburgh, PA 15222-3715
Phone: (412) 391-3636
Fax: (412) 391-6490
MFS Telecom - Portland
851 Sixth Avenue SW
Suite 400
Portland, OR 97204
Phone: (503) 242-9111
Fax: (503) 242-4960
MFS Telecom - Richmond
1632 East Parham Road
Building 5
Richmond, VA 23228
Phone: (804) 262-3900
Fax: (804) 965-0038
MFS Telecom - Rochester
750 Clinton Square
Rochester, NY 14604
Phone: (716) 454-6990
Fax: (716) 454-2455
MFS Telecom - San Diego
10065 Barnes Canyon Road
Suite A
San Diego, CA 92121
Phone: (619) 625-6250
Fax: (619) 625-6260
MFS Telecom - San Francisco
444 Market Street
Suite 3060
San Francisco, CA 94111
Phone: (415) 362-3300
Fax: (415) 362-2709
MFS Telecom - San Jose
55 South Market St.
Suite 1250
San Jose, CA 95113
Phone: (408) 975-2200
Fax: (408) 975-2210
MFS Telecom - Seattle
2201 Sixth Avenue
Suite 1205
Seattle, WA 98121
Phone: (206) 441-8900
Fax: (206) 441-8978
MFS Telecom - St. Louis
11636 Lackland Road
St. Louis, MO 63146-3527
Phone: (314) 692-4500
Fax: (314) 995-3910
MFS Telecom - Stamford
6 Landmark Square
Suite 400
Stamford, CT 06901
Phone: (203) 977-7150
Fax: (203) 363-0344
MFS Telecom - Tampa
101 E. Kennedy
Suite 1150
Tampa, FL 33602
Phone: (813) 223-0013
Fax: (813) 272-1428
MFS Telecom - Toronto
151 West Front Street
Suite 602
Toronto, Ontario CANADA, M5J 2N1
Phone: (416) 862-0705
MFS Telecom - Vienna/Washington DC
8100 Boone Boulevard
Suite 500
Vienna, VA 22182
Phone: (703) 506-2000
Fax: (703) 506-2000
MFS Telecom - Waltham, MA
281 Winter Street
Suite 360
Waltham, MA 02154
Phone: (617) 622-5022
MFS Telecom - White Plains, NY
One North Broadway
7th Floor
White Plains, NY 10601
Phone: (914) 428-7303
Fax: (914) 428-2303
MFS Telecom - Wilmington, DE
301 N. Walnut Street
Suite 800
Wilmington, DE 19801
Phone: (302) 652-7114
Fax: (302) 652-7036
MFS WorldCom, Inc.
One Tower Lane
Suite 1600
Oakbrook, IL 60181
Phone: (708) 218-7200
Fax: (708) 218-0018
Multimedia Hyperion Tel. (Wichita)
701 E. Douglas
Wichita, KS 67202
Phone: (316) 264-9220
Fax: (316) 264-9260
National Tel
6363 NW 6th Way
Suite 1000
Ft. Lauderdale, FL 33309
Phone: (407) 517-0001
Fax: (954) 491-9526
New Jersey Fiber Technologies
225 Old New Brunswick Road
Suite 104
Piscataway, NJ 08854
Phone: (908) 981-9202
Fax: (908) 981-9250
NEXTLINK
155 108th Ave. NE
Ste. 810
Bellevue, WA 98004
Phone: (206) 519-8900
Fax: (206) 519-8910
NEXTLINK - Allentown, PA
Allentown, PA
Phone: (610) 375-3400
Fax: (610) 288-5666
NEXTLINK - Cleveland, OH
Cleveland, OH
Phone: (216) 619-3200
Fax: (216) 619-3201
NEXTLINK - Columbus, OH
10 W. Broad St.
Columbus, OH 43215
Phone: (614) 629-3200
Fax: (614) 629-3201
NEXTLINK - Memphis, TN
Memphis, TN
Phone: (901) 888-8888
Fax: (901) 888-8900
NEXTLINK - Nashville, TN
105 Malley St.
Suite 300
Nashville, TN 37201
Phone: (615) 777-7777
Fax: (615) 777-7709
NEXTLINK - Salt Lake City/Provo/Orem, UT
8871 S. Savoy Parkway
Suite 200
Savoy, UT 84070
Phone: (801) 983-1550
Fax: (801) 984-1620
NEXTLINK - Spokane, WA
Spokane, WA
Phone: (509) 458-8500
Fax: (509) 444-8505
NHT (Syracuse/Binghamton)
6007 Fair Lakes Road
East Syracuse, NY 13057
Phone: (315) 234-5678
Fax: (315) 234-5000
NHT Albany
80 Wolf Rd
Suite 402
Albany, NY 12205
Phone: (518) 437-0036
Fax: (518) 437-0283
NHT Partnership (Buffalo)
Main Place Tower
Suite 1110
Buffalo, NY 14202
Phone: (716) 819-2000
Fax: (716) 819-2040
OCI Communications Inc.
401 Second Ave. South
Suite 900
Minneapolis, MN 55401
Phone: (612) 630-8888
Fax: (612) 630-9145
PECO Hyperion Telecommunications (PHT)
1625 Market St., 13th Floor
Philadelphia, PA 19101
Phone: (215) 387-6695
Fax: (215) 387-2881
Phone Michigan
4565 Wilson Ave. SW
Grandville, MI 49418
Phone: (616) 224-1600
Fax: (616) 224-1609
Phone Michigan - Flint
4074 S. Linden Rd.
Flint, MI 48507
Priemiere Network Services Inc.
1510 N. Hampton Road
suite 210
De Soto, TX 75115
Phone: (972) 228-8881
Fax: (972) 228-8889
Supra Telecommunications
2620 S.W. 27th Ave.
Miami, Fla. 33133
Phone: (305) 443 3710
Fax: (305) 443 1078
TCG - Baltimore
25 S. Charles St., Ste. 2000
Baltimore, MD 21201
Phone: (410) 649-0300
TCG - Birmingham
49 Music Square West
Suite 200
Nashville, TN 37203
Phone: (615) 777-2100
TCG - Boston
10 High St., 2nd Floor
Boston, MA 02110
Phone: (617) 476-4760
Fax: (617) 476-4770
TCG - Chattanooga
49 Music Square West
Suite 200
Nashville, TN 37203
Phone: (615) 777-2100
TCG - Chicago
233 S. Wacker Dr.
Ste. 2100
Chicago, IL 60606
Phone: (312) 705-9800
Fax: (312) 705-9801
TCG - Dallas
717 N. Harwood St., Ste. 510
Dallas, TX 75201
Phone: (214) 922-8833
Fax: (214) 922-8855
TCG - Delaware Valley
630 Freedom Business Center
Suite 200
King of Prussia, PA 19406
Phone: (610) 382-2000
Fax: (610) 382-2222
TCG - Denver
2530 S. Parker Rd., Ste. 100
Aurora, CO 80014
Phone: (303) 369-7273
Fax: (303) 369-2461
TCG - Detroit
1000 Town Center, Ste. 150
Southfield, MI 48075-1193
Phone: (810) 827-0100
Fax: (810) 827-1244
TCG - Hartford
750 Main St.
Hartford, CT 06103
Phone: (860) 509-9900
Fax: (860) 509-9904
TCG - Houston
1301 Fannin St., Ste. 1290
Houston, TX 77002
Phone: (713) 830-8300
Fax: (713) 759-1756
TCG - Indianapolis
9325 Delegates Row
Indianapolis, IN 46240
Phone: (317) 580-2900
Fax: (317) 580-2910
TCG - Knoxville, TN
c/o 49 Music Square West
Suite 200
Nashville, TN 37203
Phone: (615) 777-2100
TCG - Los Angeles
700 South Flower St., Ste. 810
Los Angeles, CA 90017
Phone: (213) 787-0000
Fax: (213) 787-0100
TCG - Milwaukee
111 E. Kilbourn Ave., Ste. 2100
Milwaukee, WI 53202
Phone: (414) 290-9800
Fax: (414) 290-9857
TCG - Minneapolis/St. Paul
Minneapolis, MN
Phone: (612) 362 8944
TCG - Nashville
49 Music Square West
Suite 200
Nashville, TN 37203
Fax: (615) 777-2150
TCG - New Jersey
275 Old New Brunswick Rd.
Piscataway, NJ 08854
Phone: (908) 394-4400
Fax: (908) 394-9839
TCG - New York
One World Trade Center, Ste. 5121
New York, NY 10048
Phone: (212) 478-8000
Fax: (212) 478-4910
TCG - Omaha
2505 S. 72nd St.
Omaha, NE 68124
Phone: (402) 548-1800
Fax: (402) 344-4290
TCG - Phoenix
2720 E. Camelback Rd.
Phoenix, AZ 85016
Phone: (602) 912-9898
Fax: (602) 912-0314
TCG - Pittsburgh
2500 Allegheny Center
Office Concourse
Pittsburgh, PA 15212
Phone: (412) 316-4824
Fax: (412) 316-9999
TCG - Portland
1001 SW 5th Ave., Ste. 1100
Portland, OR 97204
Phone: (503) 220-2895
TCG - Providence
275 Promenade St.
Providence, RI 02908
Phone: (401) 621-8300
Fax: (401) 274-9844
TCG - S Florida (Ft. Lauderdale/Miami)
1 E Broward Blvd., Ste. 910
Ft. Lauderdale, FL 33301
Phone: (954) 493-4290
Fax: (954) 453-4444
TCG - San Diego
5355 Mira Sorrento Pl., Ste. 700
San Diego, CA 92101
Phone: (619) 812-0000
Fax: (619) 812-0199
TCG - San Francisco
One Bush St., Ste. 510
San Francisco, CA 94104-4411
Phone: (415) 276-0000
Fax: (415) 276-0050
TCG - Seattle
1215 Fourth Ave., Ste. 1500
Seattle, WA 98161
Phone: (206) 505-0000
Fax: (206) 505-0050
TCG - St. Louis
1 City Place Dr., Ste. 200
St. Louis, MO 63141
Phone: (314) 569-1551
Fax: (314) 569-2551
TCG - Washington, DC
1331 F St. NW, Ste. 200
Washington, DC 20004
Phone: (202) 628-2345
TDS Metrocom
301 S. Westfield Rd.
PO Box 5158
Madison, WI 53705
Phone: (608) 845-4000
Fax: (608) 845-4809
TDS Telecom
301 S. Westfield Rd.
P.O. Box 5158
Madison, WI 53705
Phone: (608) 845-4000
Fax: (608) 845-4809
Teleport Communications Group
Two Teleport Dr.
Staten Island, NY 10311
Phone: (718) 355-2000
Fax: (718) 355-2147
Teligent
8065 Leesburg Pike
Suite 400
Vienna, VA 22182
Phone: (888) 354-4368
Fax: (703) 299-4595
Teligent - West Coast Regional Office
3600 Wilshire Blvd., Ste. 1700
Los Angeles, CA 90010
Phone: (213) 387-9271
Fax: (213) 387-9277
Time Warner AxS of New York City L.P.
New York, NY
Phone: (212) 598-7200
Time Warner Communications
160 Inverness Dr. W
Englewood, CO 80112
Phone: (800) 888-6823
Fax: (303) 799-3317
Time Warner Communications of Austin
12012 W. Mopaz
Austin, TX 78758
Phone: (512) 485-5000
Fax: (512) 485-4015
Time Warner Communications of Charlotte
2300 Yorkmont Road., Ste. 700
Charlotte, NC 28217
Phone: (704) 338-7400
Fax: (704) 344-1155
Time Warner Communications of Cincinnati
11252 Cornell Pkwy
Cincinnatti, OH 45242
Phone: (513) 489-5820
Time Warner Communications of Greensboro/Winston-Salem
416 Gallimore Dairy Rd, Ste. J
Greensboro, NC 27409
Phone: (910) 393-0557
Fax: (910) 393-0677
Time Warner Communications of Houston
Houston, TX
Phone: (713) 462-1900
Time Warner Communications of Indianapolis
Indianapolis, IN
Phone: (317) 587-1300
Fax: (317) 587-1314
Time Warner Communications of Memphis
6555 Quince, Ste. 500
Memphis, TN 38119
Phone: (901) 369-5001
Fax: (901) 369-4543
Time Warner Communications of Milwaukee
1110 N. Old World Third St.
Ste. 600
Milwaukee, WI
Phone: (414) 908-1000
Fax: (414) 908-1070
Time Warner Communications of Orlando
2301 Lucien Way
Suite 300
Orlando, FL 32751
Phone: (407) 215-0000
Fax: (407) 660-8068
Time Warner Communications of Raleigh/Durham/RTP
3012 Highwoods Blvd., Ste. 301
Raleigh, NC 27604
Phone: (919) 501-7700
Fax: (919) 872-1444
Time Warner Communications of Rochester
Rochester, NY
Phone: (716) 756-1000
Time Warner Fibrcom
70 NE Loop 410, Ste. 900
San Antonio, TX 78216
Phone: (210) 524-5502
Fax: (210) 524-5099
US LEC of Georgia
c/o 212 S. Tryon St., Ste. 1540
Charlotte, NC 28281
Phone: (704) 335-8790
Fax: (704) 335-0647
US LEC of North Carolina - Charlotte
212 S. Tryon St., Ste. 1540
Charlotte, NC 28281
Phone: (704) 319-1000
Fax: (704) 319-1345
US LEC of North Carolina - Greensboro
301 S. Elm St.
Greensboro, NC 27401
Phone: (704) 319-1000
Fax: (704) 319-1345
US LEC of North Carolina - Raleigh
2201 Brentwood Rd., Ste. 103
Raleigh, NC 27604
Phone: (919) 719-1000
Fax: (919) 719-1375
US LEC of North Carolina L.L.C.
212 S. Tryon St., Ste. 1540
Charlotte, NC 28281
Phone: (704) 319-1000
Fax: (704) 319-1345
US LEC of South Carolina
c/o 212 S. Tyron St., Ste. 1540
Charlotte, NC 28281
Phone: (704) 335-8790
Fax: (704) 335-0647
US LEC of Virginia
c/o 212 S. Tyron St., Ste. 1540
Charlotte, NC 28281
US Wats, Inc.
111 Presidential Blvd., Ste. 114
Bala Cynwyd, PA 19004-1008
Phone: (610) 660-0100
Fax: (610) 660-0335
US XChange LLC
20 Monroe NW
Ste. 450
Grand Rapids, MI 49503
Phone: (616) 493-7000
Fax: (616) 493-7007
US XChange of Indiana, LLC
20 Monroe NW, Ste. 450
Grand Rapids, MI 49503
Phone: (616) 493-7000
Fax: (616) 493-7007
US XChange of Wisconsin, LLC
2150 Holmgren Way
Green Bay, WI 54304
Phone: (920) 405-5721
Fax: (920) 405-5725
USLink
200 Second St.
Pequor Lakes, MN 56442
Phone: (218) 568-4000
USN Communications - Massachusetts
10 Post Office Square
Ste. 270
Boston, MA 02109
USN Communications - Michigan
26777 Central Park Blvd.
Ste. 250
Southfield, MI 48076
USN Communications - New York
2 Penn Plaza, Ste. 1700
New York, NY 10121
USN Communications - Ohio
1301 E. 9th St., Ste. 1120
Cleveland, OH 44114
Waller Creek Communications
1801 N. Lamar, Ste. 201
Austin, TX 78701
Phone: (512) 485-7000
Fax: (512) 485-7988
WinStar - New York
380 Lexington Ave.
17th Floor
New York, NY 10168
Fax: (212) 551-7800
WinStar - Washington
7799 Leesburg Pike
Ste. 101S
Falls Church, VA 22043
Fax: (703) 917-8657
WinStar Telecommunications, Inc.
7799 Leesburg Pike
Ste. 401S
Falls Church, VA 22043
Phone: (703) 917-9117
Fax: (703) 917-8827
XCOM Technologies, Inc.
One Main St., 11th Floor
Cambridge, MA 02142
Phone: (617) 500-0000
Fax: (617) 500-0001