Local Calling Guide
Area code/prefix search
NPA: 203
[Rate centres in NPA 203]
[Dial plan for NPA 203]
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| NPA-NXX |
BLOCK |
Rate Centre |
Region |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 203-505
| 8 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2006-08-03 |
|
| 203-505
| 9 |
Norwalk |
CT |
HRFRCTASBMD |
6388 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT |
920 |
|
2008-10-29 |
|
| 203-506
| A |
New Haven |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
|
|
| 203-507
| A |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2024-02-09 |
|
| 203-507
| 0 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2008-04-13 |
|
| 203-507
| 1 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2008-04-13 |
|
| 203-507
| 2 |
New Haven |
CT |
HRFRCTCR3MD |
318J COMCAST IP PHONE, LLC |
920 |
|
2007-02-08 |
|
| 203-507
| 3 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-507
| 4 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-507
| 5 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-507
| 6 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-507
| 7 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-507
| 8 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-507
| 9 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-508
| A |
New Haven |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
|
|
| 203-508
| 0 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2004-06-13 |
|
| 203-508
| 1 |
New Haven |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-04-04 |
|
| 203-508
| 2 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2004-07-16 |
|
| 203-508
| 3 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2004-07-16 |
|
| 203-508
| 4 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-05-29 |
|
| 203-508
| 5 |
New Haven |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
2005-01-01 |
|
| 203-508
| 6 |
New Haven |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-07-22 |
|
| 203-508
| 7 |
New Haven |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-07-22 |
|
| 203-508
| 8 |
New Haven |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-07-22 |
|
| 203-508
| 9 |
New Haven |
CT |
|
829J PAETEC ITEL, LLC |
920 |
|
2004-07-22 |
|
| 203-509
| A |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 0 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 1 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 2 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 3 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 4 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 5 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 6 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 7 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 8 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-509
| 9 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| A |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
2024-02-09 |
|
| 203-510
| 0 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 1 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 2 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 3 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 4 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 5 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 6 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 7 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 8 |
Waterbury |
CT |
BLFDCTAP2MD |
5562 METROPCS, INC. |
920 |
|
|
|
| 203-510
| 9 |
Waterbury |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-512
| A |
Danbury |
CT |
BLFDCTAP2MD |
6624 OMNIPOINT COMMUNICATIONS, INC. - CT |
920 |
|
|
|
| 203-513
| A |
Huntington |
CT |
NWHNCT02X5X |
7421 AT&T - LOCAL |
920 |
|
|
|
| 203-513
| 0 |
Huntington |
CT |
MDTWCTNIBMD |
4036 NEW CINGULAR WIRELESS PCS, LLC - DC |
920 |
|
2006-03-05 |
|
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Last updated: Sun, 17 May 2026 03:26:51 UTC
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