Local Calling Guide
Area code/prefix search
NPA: 443
[Rate centres in NPA 443]
[Dial plan for NPA 443]
NXX: 483
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-483
| A |
Cardiff |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
|
|
443-483
| 0 |
Cardiff |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2022-02-25 |
|
443-483
| 1 |
Cardiff |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-483
| 2 |
Cardiff |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-483
| 3 |
Cardiff |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-03-07 |
|
443-483
| 4 |
Cardiff |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2004-02-07 |
|
443-483
| 5 |
Cardiff |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-13 |
|
443-483
| 6 |
Cardiff |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-03-07 |
|
443-483
| 7 |
Cardiff |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2019-03-07 |
|
443-483
| 8 |
Cardiff |
MD |
|
145J TERRA NOVA TELECOM INC. |
238 |
|
2021-01-27 |
|
443-483
| 9 |
Cardiff |
MD |
BLTMMDCHXUX |
624H ONVOY SPECTRUM, LLC |
238 |
|
2022-02-13 |
|
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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