1. ACC.com
8335 Guilford Rd Ste H, Columbia, MD 21046
Coordinate: 39.17598,-76.86902
Phone: (301) 831-8288
2. ACC Telecom
10005 Old Columbia Rd Ste M150, Columbia, MD 21046
Coordinate: 39.17347,-76.85788
Phone: (410) 995-0101
3. AT&T Store
6490 Dobbin Center Way, Columbia, MD 21045
Coordinate: 39.19789,-76.82069
Phone: (888) 407-5742
4. Fulton Communications
8840 Stanford Blvd, Columbia, MD 21045
Coordinate: 39.18927,-76.81487
Phone: (443) 283-3730
5. Telenix Corp
9194 Red Branch Rd, Columbia, MD 21045
Coordinate: 39.23043,-76.82743
Phone: (410) 772-3275
6. Verizon Communications Inc
5405 Twin Knolls Rd, Columbia, MD 21045
Coordinate: 39.22105,-76.84396
Phone: (410) 997-4481
7. Net 100
9121 Red Branch Rd, Columbia, MD 21045
Coordinate: 39.23109,-76.81806
Phone: (410) 884-3876
8. Adams & Assoc Inc
5565 Sterrett Pl, Columbia, MD 21044
Coordinate: 39.21841,-76.85715
Phone: (410) 964-5770
9. LDDS Worldcom
6325 Woodside Ct, Columbia, MD 21046
Coordinate: 39.19499,-76.85264
Phone: (410) 381-1100
10. Dynatech Integrated Systems
9020 Mendenhall Ct Ste H, Columbia, MD 21045
Coordinate: 39.18664,-76.82803
Phone: (410) 290-9972
11. Essex Corporation
6708 Alexander Bell Dr, Columbia, MD 21046
Coordinate: 39.18734,-76.80863
Phone: (410) 872-0854
12. Corvis Corporation
6640 Eli Whitney Dr, Columbia, MD 21046
Coordinate: 39.18259,-76.80904
Phone: (443) 285-5000
13. Communications Att
9019 Constant Crse, Columbia, MD 21046
Coordinate: 39.17572,-76.82413
Phone: (410) 872-1283
14. US Lec Of Maryland
6940 Columbia Gateway Dr, Columbia, MD 21046
Coordinate: 39.18199,-76.80082
Phone: (443) 573-1000
15. Saic
6841 Benjamin Franklin Dr, Columbia, MD 21046
Coordinate: 39.177307,-76.79976
Phone: (410) 290-0390
16. Sprint Store
6435 Dobbin Rd Ste B8, Columbia, MD 21045
Coordinate: 39.19486,-76.81928
Phone: (410) 740-8250
17. Icore Networks
9050 Red Branch Rd, Columbia, MD 21045
Coordinate: 39.22907,-76.81697
Phone: (410) 997-3500
18. Taytech Incorporated
8917 Blade Green Ln, Columbia, MD 21045
Coordinate: 39.21989,-76.81957
Phone: (410) 740-8853
19. TW Telecom
6230 Old Dobbin Ln Ste 140, Columbia, MD 21045
Coordinate: 39.20052,-76.81392
Phone: (410) 312-2987
20. ACC Telecom
6410 Dobbin Rd, Columbia, MD 21045
Coordinate: 39.197,-76.82072
Phone: (410) 995-0101