Local Calling Guide
Area code/prefix search
Sparks-Glencoe, MD
<< 1 2
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 443-662
| 0 |
|
829J PAETEC ITEL, LLC |
238 |
|
|
|
| 443-662
| 1 |
|
829J PAETEC ITEL, LLC |
238 |
|
|
|
| 443-662
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
| 443-662
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
238 |
|
2018-06-16 |
|
| 443-662
| 4 |
CLMAMDNIDS1 |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
238 |
|
2004-07-24 |
|
| 443-662
| 5 |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2020-07-03 |
|
| 443-662
| 6 |
BLTMMDCHX7X |
073H TELNYX LLC |
238 |
|
2017-04-26 |
|
| 443-662
| 7 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
| 443-662
| 8 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
| 443-662
| 9 |
|
829J PAETEC ITEL, LLC |
238 |
|
|
|
| 667-772
| A |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
|
|
| 667-772
| 0 |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2024-02-23 |
|
| 667-772
| 1 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-10-16 |
|
| 667-772
| 2 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-07-12 |
|
| 667-772
| 3 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2021-07-12 |
|
| 667-772
| 4 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-03-10 |
|
| 667-772
| 5 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-03-10 |
|
| 667-772
| 6 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-02-05 |
|
| 667-772
| 7 |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2021-06-27 |
|
| 667-772
| 8 |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2022-02-05 |
|
| 667-772
| 9 |
BLTQMD01BMD |
516J TON80 COMMUNICATIONS, LLC |
238 |
|
2022-04-10 |
|
<< 1 2
Last updated: Sat, 02 May 2026 12:20:53 UTC
Sponsored by: LES.NET
Like this site? We accept donations via PayPal.