Local Calling Guide
Area code/prefix search
Washington Zone 11, MD
<< 1 2 3 4 5 6 7 >>
NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
301-287
| 0 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 1 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-24 |
|
301-287
| 2 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 3 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-287
| 4 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-08 |
|
301-287
| 5 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-08 |
|
301-287
| 6 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2017-12-08 |
|
301-287
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-03-29 |
|
301-287
| 8 |
HRNDVACKAMD |
1958 ATX TELECOMMUNICATIONS SERVICES, LTD. |
236 |
|
2004-03-27 |
|
301-287
| 9 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-321
| A |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
|
|
301-321
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-06-16 |
|
301-321
| 1 |
SLSPMD913MD |
939H COMMIO, LLC |
236 |
|
2021-08-29 |
|
301-321
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-06-16 |
|
301-321
| 3 |
HRNDVACKBMD |
5977 BROADVIEW NETWORKS, INC. - DC |
236 |
|
2014-06-09 |
|
301-321
| 4 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-321
| 5 |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
2005-12-12 |
|
301-321
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-06-16 |
|
301-321
| 7 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-01-07 |
|
301-321
| 8 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2016-01-07 |
|
301-321
| 9 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-24 |
|
301-348
| A |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-348
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-24 |
|
301-348
| 1 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-348
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-348
| 3 |
WASKDCFNPS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-348
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-04-29 |
|
301-348
| 5 |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2017-08-03 |
|
301-348
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2012-08-26 |
|
301-348
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-07-30 |
|
301-348
| 8 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2016-02-24 |
|
301-348
| 9 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-24 |
|
301-382
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-413
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-443
| A |
RKVLMDMRRS1 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-460
| A |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-468
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-522
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-603
| A |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-603
| 0 |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-603
| 1 |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-603
| 2 |
ARTNVAARXDY |
318J COMCAST IP PHONE, LLC |
236 |
|
2016-07-13 |
|
301-603
| 3 |
VINNVACBDS0 |
876D ONVOY, LLC - MD |
236 |
|
2015-06-27 |
|
301-603
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2018-10-24 |
|
301-603
| 5 |
WASHDC126MD |
964H BARR TELL USA, INC. |
236 |
|
2018-05-08 |
|
301-603
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
236 |
|
2019-07-30 |
|
301-603
| 7 |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-603
| 8 |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-603
| 9 |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-649
| A |
SLSPMDNWDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
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Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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