Local Calling Guide
Area code/prefix search
Highland, IL
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 618-404
| A |
STLVMOOH6MD |
5562 METROPCS, INC. |
520 |
|
|
|
| 618-404
| 0 |
|
224C ONVOY, LLC |
520 |
|
2023-10-08 |
|
| 618-404
| 1 |
|
624H ONVOY SPECTRUM, LLC |
520 |
|
2025-01-04 |
|
| 618-404
| 2 |
|
224C ONVOY, LLC |
520 |
|
2022-09-29 |
|
| 618-404
| 3 |
|
224C ONVOY, LLC |
520 |
|
2022-09-29 |
|
| 618-404
| 4 |
|
145J TERRA NOVA TELECOM INC. |
520 |
|
2025-05-31 |
|
| 618-404
| 5 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2022-09-27 |
|
| 618-404
| 7 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2022-09-27 |
|
| 618-404
| 8 |
|
224C ONVOY, LLC |
520 |
|
2026-01-05 |
|
| 618-404
| 9 |
|
5562 METROPCS, INC. |
520 |
|
2022-04-21 |
|
| 618-651
| A |
HGLDILXEDS0 |
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-651
| 0 |
|
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-651
| 1 |
|
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-651
| 2 |
|
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-651
| 3 |
|
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-651
| 4 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
520 |
|
2010-06-29 |
|
| 618-651
| 5 |
|
224C ONVOY, LLC |
520 |
|
2018-07-29 |
|
| 618-651
| 6 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
520 |
|
2008-01-29 |
|
| 618-651
| 7 |
|
075A DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL |
520 |
|
2021-02-28 |
|
| 618-651
| 8 |
|
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-651
| 9 |
|
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-654
| A |
HGLDILXEDS0 |
1015 FRONTIER NORTH, INC. - IL |
520 |
|
|
|
| 618-701
| A |
STLVMOOH6MD |
5562 METROPCS, INC. |
520 |
|
|
|
| 618-701
| 0 |
|
5562 METROPCS, INC. |
520 |
|
2014-08-28 |
|
| 618-701
| 1 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2017-01-11 |
|
| 618-701
| 2 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
520 |
|
2019-01-21 |
|
| 618-701
| 3 |
|
224C ONVOY, LLC |
520 |
|
2019-07-29 |
|
| 618-701
| 4 |
|
224C ONVOY, LLC |
520 |
|
2019-07-29 |
|
| 618-701
| 5 |
|
495J STRATUS NETWORKS |
520 |
|
2020-12-18 |
|
| 618-701
| 6 |
|
7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL |
520 |
|
2019-04-09 |
|
| 618-701
| 7 |
|
508J CENTURYLINK COMMUNICATIONS, LLC |
520 |
|
2016-01-22 |
|
| 618-701
| 8 |
|
5562 METROPCS, INC. |
520 |
|
2018-04-27 |
|
| 618-701
| 9 |
|
984E BANDWIDTH.COM CLEC, LLC - IL |
520 |
|
2020-04-09 |
|
| 618-882
| A |
BLVLILAJ3MD |
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
520 |
|
|
|
| 618-882
| 0 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2014-04-04 |
|
| 618-882
| 1 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2014-04-04 |
|
| 618-882
| 2 |
|
5562 METROPCS, INC. |
520 |
|
2014-07-24 |
|
| 618-882
| 3 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2010-08-11 |
|
| 618-882
| 4 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
520 |
|
2004-07-04 |
|
| 618-882
| 5 |
|
6115 LEVEL 3 COMMUNICATIONS, LLC - IL |
520 |
|
2005-09-22 |
|
| 618-882
| 6 |
|
792K CHARTER IP ENABLED SERVICES, LLC |
520 |
|
2008-04-01 |
|
| 618-882
| 7 |
|
063E PEERLESS NETWORK OF ILLINOIS, LLC - IL |
520 |
|
2012-09-15 |
|
| 618-882
| 8 |
|
6529 T-MOBILE USA, INC. |
520 |
|
2007-08-24 |
|
| 618-882
| 9 |
|
073H TELNYX LLC |
520 |
|
2020-07-10 |
|
Last updated: Tue, 13 Jan 2026 21:50:02 UTC
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