NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

3 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, last 30 days — NPA 839
ONVOY, LLC - SC 2
NEW CINGULAR WIRELESS PCS, LLC - GA 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
2023-04-21 839-390 0XXX1XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H HICKORYGRV SC
2023-04-18 839-240 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CHESTER SC
2023-03-30 839-238 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 732J COLUMBIA SC
2023-03-17 839-237 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2023-03-16 839-236 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY SC
2023-03-03 839-235 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 YORK SC
2023-02-13 839-234 0–9 XXXall 10 · 5 holders which blocks → NUSO, LLC 732J CAMDEN SC
2023-02-03 839-233 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BARNWELL SC
2023-01-13 839-239 0XXX3XXX4XXX6XXX8XXX · 4 holders which blocks → ONVOY, LLC - SC 548E CHPNLTLMTN SC
2023-01-06 839-232 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLOVER SC
2023-01-06 839-363 0XXX1XXX3XXX6XXX · 3 holders which blocks → ONVOY, LLC - SC 548E ESTILL SC
2023-01-03 839-230 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY SC
2023-01-03 839-231 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ORANGEBURG SC
2022-12-19 839-867 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H SUMTER SC
2022-11-30 839-229 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 WINNSBORO SC
2022-11-17 839-293 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E FORT MILL SC
2022-11-08 839-228 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 COLUMBIA SC
2022-10-06 839-223 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2022-10-06 839-224 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 COLUMBIA SC
2022-09-27 839-221 0–9 XXXall 10 · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H COLUMBIA SC
2022-09-20 839-220 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 5 holders which blocks → NUSO, LLC 732J JACKSON SC
2022-09-02 839-269 0–9 XXXwhole prefix which blocks → ONVOY, LLC - SC 548E LANCASTER SC
2022-09-02 839-569 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - SC 548E BARNWELL SC
2022-08-18 839-219 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY SC
2022-08-04 839-218 0–9 XXXall 10 · 3 holders which blocks → HD CARRIER LLC 321J COLUMBIA SC
2022-03-23 839-388 0–9 XXXwhole prefix which blocks → ONVOY, LLC - SC 548E ROCK HILL SC
2022-03-22 839-226 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NEWBERRY SC
2022-03-14 839-267 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BARNWELL SC
2022-03-02 839-217 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NEWBERRY SC
2022-02-15 839-273 0–9 XXXall 10 · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NO AUGUSTA SC
2022-02-15 839-466 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WINNSBORO SC
2022-02-15 839-746 0–9 XXXall 10 · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J AIKEN SC
2022-02-10 839-266 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MANNING SC
2022-02-07 839-264 1XXX2XXX6XXX · 3 holders which blocks → TON80 COMMUNICATIONS, LLC 516J RIDGEWAY SC
2022-02-07 839-826 0XXX1XXX2XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BEECH IS SC
2022-02-07 839-866 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J GRANITEVL SC
2022-02-03 839-216 0–9 XXXall 10 · 3 holders which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 AIKEN SC
2022-02-03 839-832 0XXX1XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SANTEE SC
2022-02-02 839-876 0XXX1XXX3XXX6XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J PROSPERITY SC
2022-02-01 839-227 0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J OLAR SC
2022-02-01 839-639 0XXX1XXX2XXX3XXX7XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ELLOREE SC
2022-01-31 839-274 0–9 XXXall 10 · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ROCK HILL SC
2022-01-31 839-277 0XXX1XXX4XXX7XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J MILL CREEK SC
2022-01-31 839-868 0–9 XXXall 10 · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J YORK SC
2022-01-28 839-737 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J LAKE WYLIE SC
2022-01-27 839-215 0XXX1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F DENMARK SC
2022-01-27 839-846 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J BATESBURG SC
2022-01-13 839-845 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J EASTOVER SC
2022-01-13 839-887 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → TON80 COMMUNICATIONS, LLC 516J WILLISTON SC
2022-01-07 839-213 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J COLUMBIA SC

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.