Local Calling Guide
Area code/prefix search
Killingworth, CT
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 860-452
| A |
HRFRCTCRDS0 |
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
|
|
| 860-452
| 0 |
|
4800 LEVEL 3 COMMUNICATIONS, LLC - CT |
920 |
|
2008-05-13 |
|
| 860-452
| 1 |
|
639C ONVOY, LLC - CT |
920 |
|
2019-08-09 |
|
| 860-452
| 2 |
|
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2012-08-31 |
|
| 860-452
| 3 |
|
639C ONVOY, LLC - CT |
920 |
|
2015-05-15 |
|
| 860-452
| 4 |
|
318J COMCAST IP PHONE, LLC |
920 |
|
2004-12-17 |
|
| 860-452
| 5 |
|
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
2007-09-07 |
|
| 860-452
| 6 |
|
199F BANDWIDTH.COM CLEC, LLC - CT |
920 |
|
2015-06-18 |
|
| 860-452
| 7 |
|
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2013-05-03 |
|
| 860-452
| 8 |
|
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2013-05-03 |
|
| 860-452
| 9 |
|
7143 TELEPORT COMMUNICATIONS AMERICA, LLC - CT |
920 |
|
|
|
| 860-663
| A |
MDSNCT02RS0 |
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 860-663
| 0 |
|
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 860-663
| 1 |
|
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 860-663
| 2 |
|
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 860-663
| 3 |
|
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 860-663
| 4 |
|
639C ONVOY, LLC - CT |
920 |
|
2020-02-28 |
|
| 860-663
| 5 |
|
9147 SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT |
920 |
|
|
|
| 860-663
| 6 |
|
639C ONVOY, LLC - CT |
920 |
|
2020-02-28 |
|
| 860-663
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
920 |
|
2014-07-08 |
|
| 860-663
| 8 |
|
639C ONVOY, LLC - CT |
920 |
|
2019-08-09 |
|
| 860-663
| 9 |
|
073H TELNYX LLC |
920 |
|
2018-05-09 |
|
| 959-678
| A |
NWHNCT02XOX |
7421 AT&T - LOCAL |
920 |
|
|
|
| 959-678
| 0 |
|
515J IP HORIZON LLC |
920 |
|
2024-07-15 |
|
| 959-678
| 9 |
|
7421 AT&T - LOCAL |
920 |
|
2022-08-21 |
|
| 959-955
| A |
HRFRCTBCDS1 |
639C ONVOY, LLC - CT |
920 |
|
|
|
| 959-955
| 0 |
|
624H ONVOY SPECTRUM, LLC |
920 |
|
2021-03-13 |
|
| 959-955
| 1 |
|
639C ONVOY, LLC - CT |
920 |
|
2020-08-10 |
|
| 959-955
| 2 |
|
639C ONVOY, LLC - CT |
920 |
|
2020-08-10 |
|
| 959-955
| 3 |
|
639C ONVOY, LLC - CT |
920 |
|
2022-01-15 |
|
| 959-955
| 4 |
|
318J COMCAST IP PHONE, LLC |
920 |
|
2022-06-15 |
|
| 959-955
| 6 |
|
624H ONVOY SPECTRUM, LLC |
920 |
|
2022-02-20 |
|
| 959-955
| 7 |
|
624H ONVOY SPECTRUM, LLC |
920 |
|
2022-02-20 |
|
| 959-955
| 8 |
|
539F PEERLESS NETWORK OF CONNECTICUT, LLC - CT |
920 |
|
2024-05-12 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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