Local Calling Guide
Area code/prefix search
NPA: 203
[Rate centres in NPA 203]
[Dial plan for NPA 203]
NXX: 628
| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 203-628
| A |
Danbury |
CT |
NRWLCT02YMD |
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
|
|
| 203-628
| 0 |
Danbury |
CT |
|
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-03-27 |
|
| 203-628
| 1 |
Danbury |
CT |
|
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2021-09-06 |
|
| 203-628
| 2 |
Danbury |
CT |
|
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2012-09-06 |
|
| 203-628
| 3 |
Danbury |
CT |
|
5562 METROPCS, INC. |
920 |
|
2013-10-21 |
|
| 203-628
| 4 |
Danbury |
CT |
|
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2013-07-26 |
|
| 203-628
| 5 |
Danbury |
CT |
|
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2013-01-30 |
|
| 203-628
| 6 |
Danbury |
CT |
|
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2011-05-02 |
|
| 203-628
| 7 |
Danbury |
CT |
|
318J COMCAST IP PHONE, LLC |
920 |
|
2009-03-22 |
|
| 203-628
| 8 |
Danbury |
CT |
|
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-11-26 |
|
| 203-628
| 9 |
Danbury |
CT |
|
4950 CABLEVISION LIGHTPATH, INC. - CT |
920 |
|
|
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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