Local Calling Guide
Area code/prefix search
NPA: 443
[Rate centres in NPA 443]
[Dial plan for NPA 443]
NXX: 508
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-508
| A |
Hampstead |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-508
| 0 |
Hampstead |
MD |
HNVAMDBHAMD |
3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
238 |
|
|
|
443-508
| 1 |
Hampstead |
MD |
BLTMMDCH40Z |
5562 METROPCS, INC. |
238 |
|
2004-12-27 |
|
443-508
| 2 |
Hampstead |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2013-02-17 |
|
443-508
| 3 |
Hampstead |
MD |
BLTOMDKHDS0 |
7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD |
238 |
|
2009-01-05 |
|
443-508
| 4 |
Hampstead |
MD |
HMPSMDHERS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
2004-10-07 |
|
443-508
| 5 |
Hampstead |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
443-508
| 6 |
Hampstead |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-508
| 7 |
Hampstead |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2012-10-07 |
|
443-508
| 8 |
Hampstead |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-02-25 |
|
443-508
| 9 |
Hampstead |
MD |
BLTQMD01DS0 |
568G PEERLESS NETWORK OF MARYLAND, LLC |
238 |
|
2013-05-04 |
|
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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