Local Calling Guide
Area code/prefix search
Sykesville, MD
<< 1 2
NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-398
| 9 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-01 |
|
443-516
| A |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-516
| 0 |
BLTQMD018MD |
145J TERRA NOVA TELECOM INC. |
238 |
|
2024-10-12 |
|
443-516
| 2 |
BLTMMDCHW29 |
4716 PAETEC COMMUNICATIONS, INC. - MD |
238 |
|
2004-12-22 |
|
443-516
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-01 |
|
443-516
| 4 |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-516
| 5 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2024-03-22 |
|
443-516
| 6 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2016-09-19 |
|
443-516
| 7 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2011-06-02 |
|
443-516
| 8 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-28 |
|
443-516
| 9 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-28 |
|
443-609
| A |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-609
| 0 |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-609
| 1 |
CLMAMDJTAMD |
2589 US LEC OF MARYLAND, INC. |
238 |
|
2003-03-02 |
|
443-609
| 2 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2016-08-15 |
|
443-609
| 3 |
BLTMMDCH14Z |
2697 CTC COMMUNICATIONS CORP. - MD |
238 |
|
2006-08-18 |
|
443-609
| 4 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2007-01-19 |
|
443-609
| 5 |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
443-609
| 6 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2018-02-26 |
|
443-609
| 7 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-07-28 |
|
443-609
| 8 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-609
| 9 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-920
| A |
CLMAMDNIDS1 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
443-920
| 0 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-07-28 |
|
443-920
| 1 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-01 |
|
443-920
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-01 |
|
443-920
| 3 |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2009-05-21 |
|
443-920
| 4 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-06-07 |
|
443-920
| 5 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2018-06-07 |
|
443-920
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2019-05-01 |
|
443-920
| 7 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-25 |
|
443-920
| 8 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-03-25 |
|
443-920
| 9 |
CLMAMDNIDS1 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
|
|
667-339
| A |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
|
|
667-339
| 0 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-26 |
|
667-339
| 1 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-11-26 |
|
667-339
| 2 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-10-31 |
|
667-339
| 3 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-10-31 |
|
667-339
| 4 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-03-24 |
|
667-339
| 5 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-03-24 |
|
667-339
| 6 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-12 |
|
667-339
| 7 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-12 |
|
667-339
| 8 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-10-16 |
|
667-339
| 9 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2023-08-10 |
|
667-478
| A |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2024-05-12 |
|
667-478
| 0 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2024-05-12 |
|
667-478
| 1 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2024-05-12 |
|
667-478
| 2 |
CLMAMDORGT0 |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
238 |
|
2024-06-22 |
|
<< 1 2
Last updated: Sun, 26 Jan 2025 15:59:20 UTC
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