NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 979
SOUTHWESTERN BELL 59
FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 54
NEW CINGULAR WIRELESS PCS, LLC - IL 47
LEVEL 3 COMMUNICATIONS, LLC - TX 30
AERIAL COMMUNICATIONS, INC. 29
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-01-27 979-788 0XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → FRACTEL, LLC 965H DIME BOX TX
2021-01-04 979-379 0–9 XXXall 10 · 7 holders which blocks → ONVOY SPECTRUM, LLC 624H CLTLKJCKSN TX
2020-12-28 979-797 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H BURTON TX
2020-12-08 979-810 0XXX1XXX2XXX3XXX8XXX which blocks → ONVOY, LLC - TX 903C BRYAN TX
2020-11-27 979-899 0XXX1XXX2XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → FRACTEL, LLC 965H CALVERT TX
2020-11-19 979-465 0–9 XXXall 10 · 3 holders which blocks → FRACTEL, LLC 965H ANGLETON TX
2020-08-18 979-336 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H ANGLETON TX
2020-07-09 979-334 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2020-07-02 979-766 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H E BERNARD TX
2020-04-28 979-328 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2020-02-04 979-327 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2019-12-17 979-326 0–9 XXXall 10 · 2 holders which blocks → TELNYX LLC 073H BRYAN TX
2019-09-20 979-356 0–9 XXXall 10 · 4 holders which blocks → FRACTEL, LLC 965H SCHULENBG TX
2019-08-27 979-321 0–9 XXXall 10 · 4 holders which blocks → EXIANT COMMUNICATIONS LLC 114J BRYAN TX
2019-04-04 979-969 0–9 XXXall 10 · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H BRYAN TX
2019-04-03 979-288 0–9 XXXall 10 · 2 holders which blocks → EDGETEL, LLC 179J ANGLETON TX
2019-04-01 979-290 0–9 XXXall 10 · 4 holders which blocks → CSC WIRELESS, LLC 425J BRENHAM TX
2019-03-26 979-286 0–9 XXXall 10 · 3 holders which blocks → CSC WIRELESS, LLC 425J BRYAN TX
2019-01-22 979-274 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLVILLE TX
2018-08-30 979-269 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C FREEPORT TX
2018-07-03 979-978 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C SNOOKTUNIS TX
2018-06-18 979-261 0XXX1XXX2XXX3XXX4XXX8XXX · 4 holders which blocks → VONAGE AMERICA LLC 197D LA GRANGE TX
2017-11-27 979-231 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F SEALY TX
2017-08-01 979-205 0–9 XXXall 10 · 5 holders which blocks → WINDSTREAM SUGAR LAND, LLC 2147 SWEENY TX
2017-02-16 979-977 0–9 XXXwhole prefix which blocks → ONVOY, LLC - TX 903C BRYAN TX
2016-11-09 979-347 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 BRENHAM TX
2016-11-01 979-317 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KURTEN TX
2016-04-08 979-225 5XXX which blocks → EVOLVE CELLULAR, INC. 139F BORDEN TX
2016-04-08 979-666 6XXX which blocks → EVOLVE CELLULAR, INC. 139F MORAVIA TX
2016-01-29 979-275 not yet reported which blocks → YK COMMUNICATIONS, LTD - TX 634H EL CAMPO TX
2015-11-05 979-333 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → EVOLVE CELLULAR, INC. 139F LA GRANGE TX
2015-09-23 979-401 0–9 XXXall 10 · 7 holders which blocks → SOUTHWESTERN BELL 9533 BAY CITY TX
2015-03-17 979-331 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2015-02-18 979-701 2XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW 1181 FRANKLIN TX
2015-02-09 979-310 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EAGLE LAKE TX
2014-10-31 979-267 0–9 XXXall 10 · 6 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 ANGLETON TX
2013-11-12 979-264 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANGLETON TX
2013-11-05 979-704 0XXX1XXX2XXX3XXX4XXX5XXX6XXX which blocks → CSC VOICE, LLC 612K BRYAN TX
2013-09-27 979-803 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 6 holders which blocks → PEERLESS NETWORK OF TEXAS, LLC - TX 177F BURTON TX
2013-09-18 979-309 1XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HIGH HILL TX
2013-07-30 979-312 0XXX1XXX2XXX4XXX5XXX7XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRANKLIN TX
2013-07-22 979-208 7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARRENTON TX
2013-03-12 979-213 0–9 XXXall 10 · 6 holders which blocks → NUSO, LLC 551G BRYAN TX
2013-03-01 979-207 0–9 XXXwhole prefix which blocks → FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 BRYAN TX
2012-03-07 979-206 0XXX which blocks → ONVOY, LLC - TX 903C LA GRANGE TX
2011-02-22 979-383 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C BRYAN TX
2011-02-16 979-307 0–9 XXXall 10 · 4 holders which blocks → YMAX COMMUNICATIONS CORP. - TX 327E BRYAN TX
2011-02-02 979-276 0–9 XXXall 10 · 5 holders which blocks → AT&T ENTERPRISES, LLC 516C GARWOOD TX
2010-11-24 979-500 0–9 XXXall 10 · 8 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K COLUMBUS TX
2010-05-12 979-313 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BRAZORIA TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.