Local Calling Guide
Area code/prefix search
Washington Zone 11, MD
<< 1 2 3 4 5 6
NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
301-761
| 7 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2014-10-23 |
|
301-761
| 8 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
236 |
|
2014-11-22 |
|
301-761
| 9 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-770
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-816
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-822
| A |
WASHDCSWX2Z |
7421 AT&T LOCAL |
236 |
|
|
|
301-822
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-822
| 1 |
|
2593 CORE COMMUNICATIONS, INC. - MD |
236 |
|
2018-10-24 |
|
301-822
| 2 |
|
876D ONVOY, LLC - MD |
236 |
|
2016-02-09 |
|
301-822
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-822
| 4 |
|
318J COMCAST IP PHONE LLC |
236 |
|
2013-10-03 |
|
301-822
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-822
| 6 |
|
2593 CORE COMMUNICATIONS, INC. - MD |
236 |
|
2018-10-24 |
|
301-822
| 7 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-822
| 8 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-822
| 9 |
|
7421 AT&T LOCAL |
236 |
|
|
|
301-871
| A |
SLSPMDNBDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-881
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-929
| A |
WHTNMDWTDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-933
| A |
WHTNMDWTDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-942
| A |
WHTNMDWTDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-945
| A |
WASHDCINDS0 |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-945
| 0 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-945
| 1 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-945
| 2 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-945
| 3 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2015-05-18 |
|
301-945
| 4 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-945
| 5 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-01-25 |
|
301-945
| 6 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
2016-09-01 |
|
301-945
| 7 |
|
876D ONVOY, LLC - MD |
236 |
|
2014-10-27 |
|
301-945
| 8 |
|
876D ONVOY, LLC - MD |
236 |
|
2014-10-27 |
|
301-945
| 9 |
|
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
236 |
|
|
|
301-946
| A |
WHTNMDWTDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-949
| A |
WHTNMDWTDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| A |
WHTNMDWTDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 0 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 1 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 2 |
|
568G PEERLESS NETWORK OF MARYLAND, LLC |
236 |
|
2019-03-07 |
|
301-962
| 3 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 4 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 5 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 6 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 7 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 8 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-962
| 9 |
|
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-984
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
301-998
| A |
RKVLMDMRDS0 |
9212 VERIZON MARYLAND, INC. |
236 |
|
|
|
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Last updated: Sun, 04 Apr 2021 19:28:27 UTC
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