Local Calling Guide
Area code/prefix search
Longmont, CO
<< 1 2 3 4 5 6 7 8 9 10 11 12 >>
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 720-718
| 1 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 2 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 3 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 4 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 5 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 6 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 7 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 8 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-718
| 9 |
LNMTCOMADS1 |
9636 QWEST CORPORATION |
656 |
|
2017-01-18 |
|
| 720-727
| A |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
|
|
| 720-727
| 0 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2018-08-11 |
|
| 720-727
| 1 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2018-08-11 |
|
| 720-727
| 2 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2018-08-11 |
|
| 720-727
| 3 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2018-09-07 |
|
| 720-727
| 4 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2018-09-07 |
|
| 720-727
| 5 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2018-09-07 |
|
| 720-727
| 6 |
DNVRCO26DS5 |
278F PEERLESS NETWORK OF COLORADO, LLC - CO |
656 |
|
2018-09-24 |
|
| 720-727
| 7 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2018-10-18 |
|
| 720-727
| 8 |
DNVRCOMA39Z |
318J COMCAST IP PHONE, LLC |
656 |
|
2018-12-08 |
|
| 720-727
| 9 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2018-12-30 |
|
| 720-731
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 720-731
| 0 |
DNVRCO26XIX |
073H TELNYX LLC |
656 |
|
2019-03-05 |
|
| 720-731
| 1 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 2 |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2019-03-04 |
|
| 720-731
| 3 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 4 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 5 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 6 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 7 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 8 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-731
| 9 |
DNVRCOII3MD |
6529 T-MOBILE USA, INC. |
656 |
|
2019-03-05 |
|
| 720-743
| A |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
|
|
| 720-743
| 0 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2020-11-20 |
|
| 720-743
| 1 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2020-11-20 |
|
| 720-743
| 2 |
DNVRCOMAXGZ |
078F BANDWIDTH.COM CLEC, LLC - CO |
656 |
|
2020-11-20 |
|
| 720-743
| 3 |
DNVRCO26DS5 |
278F PEERLESS NETWORK OF COLORADO, LLC - CO |
656 |
|
2020-12-14 |
|
| 720-743
| 4 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2020-12-03 |
|
| 720-743
| 5 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2020-12-03 |
|
| 720-743
| 6 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2020-12-03 |
|
| 720-743
| 7 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2020-12-03 |
|
| 720-743
| 8 |
DNVRCOMD4MD |
6010 NEW CINGULAR WIRELESS PCS, LLC |
656 |
|
2024-09-21 |
|
| 720-743
| 9 |
DNVTCOZI6MD |
073H TELNYX LLC |
656 |
|
2021-01-04 |
|
| 720-745
| A |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
|
|
| 720-745
| 0 |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-08-17 |
|
| 720-745
| 1 |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-10-12 |
|
| 720-745
| 2 |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2015-10-12 |
|
| 720-745
| 3 |
AURRCO20AMD |
6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO |
656 |
|
2016-01-01 |
|
| 720-745
| 4 |
DNVTCO56DS8 |
6118 LEVEL 3 COMMUNICATIONS, LLC - CO |
656 |
|
2015-06-08 |
|
| 720-745
| 5 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2015-08-07 |
|
| 720-745
| 6 |
DNVTCOZIDS1 |
026D ONVOY, LLC - CO |
656 |
|
2015-08-07 |
|
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Last updated: Thu, 05 Feb 2026 23:41:55 UTC
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