NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, last 30 days — NPA 830
ONVOY, LLC - TX 1
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
2021-12-03 830-375 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C BOERNE TX
2021-10-28 830-354 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C DEL RIO TX
2021-10-28 830-362 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H FREDECKSBG TX
2021-10-28 830-364 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - TX 903C HONDO TX
2021-10-25 830-349 0–9 XXXall 10 · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 CASTROVL TX
2021-09-03 830-347 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 MARBLE FLS TX
2021-08-25 830-344 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX which blocks → STPCS JOINT VENTURE, LLC 4290 DEL RIO TX
2021-06-23 830-340 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H SEGUIN TX
2021-05-27 830-398 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H BANDERA TX
2021-05-27 830-638 0–9 XXXall 10 · 7 holders which blocks → ONVOY SPECTRUM, LLC 624H BATESVILLE TX
2021-05-27 830-658 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H BIG WELLS TX
2021-05-10 830-599 1XXX3XXX4XXX5XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H LA PRYOR TX
2021-05-10 830-946 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H NEWBRANFLS TX
2021-04-16 830-316 1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → AT&T - LOCAL 7421 MARION TX
2021-03-18 830-318 0–9 XXXall 10 · 4 holders which blocks → STRATUS NETWORKS 495J NEWBRANFLS TX
2021-01-25 830-382 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C FLORESVL TX
2021-01-25 830-508 0XXX1XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H KARNESCITY TX
2021-01-11 830-247 1XXX2XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TARPLEY TX
2020-11-30 830-699 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → FRACTEL, LLC 965H DEL RIO TX
2020-11-30 830-799 0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H RUNGE TX
2020-11-11 830-273 0–9 XXXall 10 · 3 holders which blocks → STPCS JOINT VENTURE, LLC 4290 DEL RIO TX
2020-09-03 830-288 2XXX6XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CENTER PT TX
2020-09-03 830-314 1XXX2XXX6XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COMFORT TX
2020-06-23 830-348 0–9 XXXall 10 · 5 holders which blocks → FRACTEL, LLC 965H COTULLA TX
2020-06-22 830-600 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FRACTEL, LLC 965H GRANITSHLS TX
2020-05-26 830-356 0–9 XXXall 10 · 3 holders which blocks → STPCS JOINT VENTURE, LLC 4290 DEL RIO TX
2020-03-20 830-280 0XXX1XXX2XXX8XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F SABINA TX
2020-03-10 830-252 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BULVERDE TX
2019-12-30 830-465 0–9 XXXall 10 · 6 holders which blocks → FRACTEL, LLC 965H HONDO TX
2019-05-28 830-396 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 KENEDY TX
2019-03-19 830-932 0XXX which blocks → TWC IP ENABLED SERVICES, LLC 793K KNIPPA TX
2018-08-28 830-272 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → EXIANT COMMUNICATIONS LLC 114J SEGUIN TX
2018-02-07 830-415 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C EAGLE PASS TX
2017-10-13 830-262 0–9 XXXall 10 · 8 holders which blocks → T-MOBILE USA, INC. 6529 MARBLE FLS TX
2017-09-05 830-800 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C SEGUIN TX
2017-03-15 830-346 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H CASTROVL TX
2016-12-08 830-507 0–9 XXXall 10 · 5 holders which blocks → STPCS JOINT VENTURE, LLC 4290 DEL RIO TX
2016-12-02 830-402 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H NEWBRANFLS TX
2016-10-05 830-251 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K FLORESVL TX
2016-09-27 830-327 0–9 XXXall 10 · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 NEWBRANFLS TX
2016-09-09 830-360 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 NEWBRANFLS TX
2016-07-26 830-754 0XXX2XXX3XXX4XXX6XXX7XXX9XXX · 7 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K ASHERTON TX
2016-07-25 830-219 0–9 XXXall 10 · 6 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K CARRIZOSPG TX
2016-04-25 830-971 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C EAGLE PASS TX
2016-03-28 830-218 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C LULING TX
2016-03-18 830-490 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - TX 903C POTH TX
2016-03-14 830-590 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - TX 903C MARION TX
2016-02-22 830-215 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - TX 903C KENEDY TX
2015-08-26 830-406 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SEGUIN TX
2015-07-21 830-410 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 HONDO TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.