Local Calling Guide
Area code/prefix search
NPA: 443
[Rate centres in NPA 443]
[Dial plan for NPA 443]
NXX: 203
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-203
| A |
West River |
MD |
MAYOMDMYRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-203
| 0 |
West River |
MD |
MAYOMDMYRS1 |
9212 VERIZON MARYLAND, INC. |
238 |
|
|
|
443-203
| 1 |
West River |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2005-04-03 |
|
443-203
| 2 |
West River |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2008-06-20 |
|
443-203
| 3 |
West River |
MD |
BLTMMDSNDS5 |
4773 XO MARYLAND, LLC |
238 |
|
2007-04-20 |
|
443-203
| 4 |
West River |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2003-08-20 |
|
443-203
| 5 |
West River |
MD |
BLTMMDSN6MD |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
238 |
|
2006-03-31 |
|
443-203
| 6 |
West River |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2005-03-10 |
|
443-203
| 7 |
West River |
MD |
BLTMMDDN2MD |
508J CENTURYLINK COMMUNICATIONS, LLC |
238 |
|
2014-06-25 |
|
443-203
| 8 |
West River |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-06-26 |
|
443-203
| 9 |
West River |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2008-12-11 |
|
Last updated: Tue, 16 Apr 2024 01:38:01 UTC
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