Local Calling Guide
Area code/prefix search
Chelsea, MA
<< 1 2
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 857-323
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
128 |
|
2013-09-30 |
|
| 857-323
| 8 |
|
9102 VERIZON NEW ENGLAND INC. |
128 |
|
2013-03-15 |
|
| 857-323
| 9 |
|
892D ONVOY, LLC - MA |
128 |
|
2016-02-29 |
|
| 857-386
| A |
CHLSMACHDS0 |
9102 VERIZON NEW ENGLAND INC. |
128 |
|
|
|
| 857-386
| 0 |
|
073H TELNYX LLC |
128 |
|
2017-04-28 |
|
| 857-386
| 1 |
|
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2018-10-30 |
|
| 857-386
| 2 |
|
9102 VERIZON NEW ENGLAND INC. |
128 |
|
2016-09-03 |
|
| 857-386
| 3 |
|
9102 VERIZON NEW ENGLAND INC. |
128 |
|
2016-09-03 |
|
| 857-386
| 4 |
|
892D ONVOY, LLC - MA |
128 |
|
2020-06-21 |
|
| 857-386
| 5 |
|
671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
128 |
|
2017-04-14 |
|
| 857-386
| 6 |
|
892D ONVOY, LLC - MA |
128 |
|
2019-02-23 |
|
| 857-386
| 7 |
|
892D ONVOY, LLC - MA |
128 |
|
2019-02-23 |
|
| 857-386
| 8 |
|
268F PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA |
128 |
|
2018-11-08 |
|
| 857-386
| 9 |
|
515J IP HORIZON LLC |
128 |
|
2017-07-02 |
|
| 857-475
| A |
BSTPMALLDS3 |
892D ONVOY, LLC - MA |
128 |
|
|
|
| 857-475
| 0 |
|
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-11-27 |
|
| 857-475
| 1 |
|
624H ONVOY SPECTRUM, LLC |
128 |
|
2021-11-27 |
|
| 857-475
| 3 |
|
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-475
| 4 |
|
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-475
| 5 |
|
624H ONVOY SPECTRUM, LLC |
128 |
|
2024-12-06 |
|
| 857-475
| 7 |
|
892D ONVOY, LLC - MA |
128 |
|
2021-06-03 |
|
| 857-475
| 8 |
|
892D ONVOY, LLC - MA |
128 |
|
2024-03-07 |
|
| 857-475
| 9 |
|
892D ONVOY, LLC - MA |
128 |
|
2024-03-07 |
|
| 857-776
| A |
CMBRMAORDSG |
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
|
|
| 857-776
| 0 |
|
892D ONVOY, LLC - MA |
128 |
|
2016-02-29 |
|
| 857-776
| 1 |
|
892D ONVOY, LLC - MA |
128 |
|
2010-03-15 |
|
| 857-776
| 2 |
|
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
|
|
| 857-776
| 3 |
|
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2004-09-04 |
|
| 857-776
| 4 |
|
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
|
|
| 857-776
| 6 |
|
318J COMCAST IP PHONE, LLC |
128 |
|
2014-06-18 |
|
| 857-776
| 7 |
|
4018 LEVEL 3 COMMUNICATIONS, LLC - MA |
128 |
|
2006-03-25 |
|
| 857-776
| 8 |
|
990E BANDWIDTH.COM CLEC, LLC - MA |
128 |
|
|
|
| 857-776
| 9 |
|
515J IP HORIZON LLC |
128 |
|
|
|
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Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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