Local Calling Guide
Area code/prefix search
NPA: 443
[Rate centres in NPA 443]
[Dial plan for NPA 443]
NXX: 420
NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
443-420
| A |
Ellicott City |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-420
| 0 |
Ellicott City |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-420
| 1 |
Ellicott City |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-420
| 2 |
Ellicott City |
MD |
BLTMMDCHFMD |
5562 METROPCS, INC. |
238 |
|
2018-10-05 |
|
443-420
| 3 |
Ellicott City |
MD |
BLTMMDCHXFX |
318J COMCAST IP PHONE, LLC |
238 |
|
2019-03-20 |
|
443-420
| 4 |
Ellicott City |
MD |
BLTOMDXIDS0 |
6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
238 |
|
|
|
443-420
| 5 |
Ellicott City |
MD |
BLTMMDCHXMX |
506J TWILIO INTERNATIONAL, INC. |
238 |
|
2020-12-26 |
|
443-420
| 6 |
Ellicott City |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-04-08 |
|
443-420
| 7 |
Ellicott City |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-02-22 |
|
443-420
| 8 |
Ellicott City |
MD |
BLTMMDCH45Z |
071F BANDWIDTH.COM CLEC, LLC - MD |
238 |
|
2010-02-22 |
|
443-420
| 9 |
Ellicott City |
MD |
BLTMMDCH42Z |
876D ONVOY, LLC - MD |
238 |
|
2016-04-08 |
|
Last updated: Fri, 22 Mar 2024 03:02:44 UTC
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