21. US Lec
350 E Cermak Rd, Chicago, IL 60616
Coordinate: 41.85305,-87.61893
Phone: (312) 881-9292
22. Windstream Communications
350 E Cermak Rd, Chicago, IL 60616
Coordinate: 41.85305,-87.61893
Phone: (833) 492-4117
23. Frontier Communications
212 W Van Buren St, Chicago, IL 60607
Coordinate: 41.87703,-87.63431
Phone: (855) 545-3692
24. STS Solutions
444 N Wells St Ste 201, Chicago, IL 60654
Coordinate: 41.89053,-87.63444
Phone: (312) 624-9410
25. The Chicago Switch
875 N Michigan Ave, Chicago, IL 60611
Coordinate: 41.89869,-87.62392
Phone: (312) 640-1850
26. Nationwide Telecom
828 W 31st St, Chicago, IL 60608
Coordinate: 41.83817,-87.64752
Phone: (773) 265-0480
27. Equant Inc
601 W Polk St, Chicago, IL 60607
Coordinate: 41.87158,-87.64305
Phone: (312) 360-9422
28. Paetec Chicago
350 E Cermak Rd, Chicago, IL 60616
Coordinate: 41.85305,-87.61893
Phone: (312) 842-9230
29. Integra Telecom
350 E Cermak Rd, Chicago, IL 60616
Coordinate: 41.85305,-87.61893
Phone: (312) 225-8131
30. Champaign Telephone Company
350 E Cermak Rd, Chicago, IL 60616
Coordinate: 41.85305,-87.61893
Phone: (312) 808-0826
31. MFS Intelenet
800 S Wells St, Chicago, IL 60607
Coordinate: 41.87156,-87.63434
Phone: (312) 803-7700
32. Layerone Holdings Inc
717 S Wells St, Chicago, IL 60607
Coordinate: 41.87291,-87.63326
Phone: (312) 588-1564
33. Vinakom Communications
701 S La Salle St, Chicago, IL 60605
Coordinate: 41.87328,-87.63138
Phone: (312) 322-4900
34. Bce Nexxia
700 S Federal St Ste 126s, Chicago, IL 60605
Coordinate: 41.87338,-87.6298
Phone: (312) 957-1918
35. Broadvox
440 S La Salle St, Chicago, IL 60605
Coordinate: 41.87573,-87.63197
Phone: (312) 663-7293
36. Qwest
520 S Federal St, Chicago, IL 60605
Coordinate: 41.87521,-87.62994
Phone: (312) 922-7386
37. Tcg
233 S Wacker Dr, Chicago, IL 60606
Coordinate: 41.8787,-87.63598
Phone: (312) 705-7800
38. XO Communications
233 S Wacker Dr Ste 3510, Chicago, IL 60606
Coordinate: 41.8787,-87.63598
Phone: (312) 377-1000
39. MCI World Com
1340 W Monroe St, Chicago, IL 60607
Coordinate: 41.88032,-87.66084
Phone: (312) 243-6107
40. Xo One Communications Sales Office
150 S Wacker Dr, Chicago, IL 60606
Coordinate: 41.88004,-87.63708
Phone: (312) 327-1480