Local Calling Guide
Area code/prefix search
Catonsville, MD
<< 1 2 3 4 5 6 7 8 9 >>
NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-315
| 3 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-315
| 4 |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-315
| 5 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2012-05-26 |
|
443-315
| 6 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-315
| 7 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-315
| 8 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-315
| 9 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-341
| A |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-341
| 0 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-341
| 1 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-341
| 2 |
BLTMMDCH08Z |
4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD |
238 |
|
2004-02-14 |
|
443-341
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2004-03-29 |
|
443-341
| 4 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2003-02-20 |
|
443-341
| 5 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2004-12-27 |
|
443-341
| 6 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2005-03-10 |
|
443-341
| 7 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-341
| 8 |
BLTMMDCHAMD |
1958 ATX TELECOMMUNICATIONS SERVICES, LTD. |
238 |
|
2004-03-27 |
|
443-341
| 9 |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-474
| A |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-498
| A |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-498
| 0 |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-498
| 1 |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-498
| 2 |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-498
| 3 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-498
| 4 |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-498
| 5 |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-498
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-30 |
|
443-498
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-04-30 |
|
443-498
| 8 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-498
| 9 |
BLTMMDCHXNX |
7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
238 |
|
|
|
443-514
| A |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-514
| 0 |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-514
| 1 |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-514
| 2 |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
|
|
443-514
| 3 |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2021-05-13 |
|
443-514
| 4 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-514
| 5 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-514
| 6 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-514
| 7 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-02-05 |
|
443-514
| 8 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-03-19 |
|
443-514
| 9 |
BLTMMDCH40Z |
6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
238 |
|
2021-06-06 |
|
443-520
| A |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-612
| A |
CTVLMDCTDS0 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-631
| A |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
|
|
443-631
| 0 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-10-07 |
|
443-631
| 1 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-10-07 |
|
443-631
| 2 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-10-10 |
|
443-631
| 3 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-10-07 |
|
443-631
| 4 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-10-07 |
|
443-631
| 5 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2005-10-07 |
|
<< 1 2 3 4 5 6 7 8 9 >>
Last updated: Sat, 01 Jun 2024 11:59:14 UTC
Sponsored by: FiberConX Communications Ltd.
Like this site? We accept donations via PayPal.