Local Calling Guide
Area code/prefix search
Columbia, MD
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NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
410-290
| A |
CLMAMDOBDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-309
| A |
CLMAMDOBDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-312
| A |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-381
| A |
CLMAMDOBDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-423
| A |
BLTMMDFMDS0 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
410-447
| A |
HNVAMDAE3MD |
6630 USA MOBILITY WIRELESS, INC. |
238 |
|
|
|
410-531
| A |
CLVLMDCERP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2024-01-30 |
|
410-707
| A |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
|
|
410-715
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-730
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-740
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 0 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 1 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 2 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 3 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 4 |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2015-07-03 |
|
410-772
| 5 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 6 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 7 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 8 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-772
| 9 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-794
| A |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 0 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 1 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 2 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 3 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 4 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 5 |
BLTMMDCH25Z |
8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) |
238 |
|
2006-05-04 |
|
410-794
| 6 |
BLTOMDKHBMD |
6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
238 |
|
2007-06-01 |
|
410-794
| 7 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 8 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-794
| 9 |
BLTMMDDNDS2 |
7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD |
238 |
|
|
|
410-872
| A |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-884
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-910
| A |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
|
|
410-953
| A |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 0 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 1 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 2 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 3 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 4 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 5 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 6 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 7 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 8 |
CLMAMDSRRS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-953
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2010-09-24 |
|
410-964
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-992
| A |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
410-992
| 0 |
CLMAMDCBRP0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
1 2 3 4 5 6 7 8 9 10 >>
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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