NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

1 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 984
LEVEL 3 COMMUNICATIONS, LLC - NC 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
2024-02-23 984-371 0XXX1XXX2XXX3XXX7XXX8XXX · 2 holders which blocks → ONVOY, LLC - NC 638E MEBANE NC
2024-02-23 984-372 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 CLAYTON NC
2024-02-23 984-373 1XXX3XXX8XXX9XXX · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 SELMA NC
2024-02-05 984-919 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H FREMONT NC
2024-02-05 984-984 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H SMITHFIELD NC
2024-02-02 984-367 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E DURHAM NC
2024-02-02 984-370 0–9 XXXwhole prefix which blocks → ONVOY, LLC - NC 638E RALEIGH NC
2023-12-14 984-359 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H RALEIGH NC
2023-12-14 984-360 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H CARY NC
2023-12-14 984-361 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H GOLDSBORO NC
2023-12-14 984-362 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H WAKEFOREST NC
2023-11-14 984-357 0–9 XXXall 10 · 4 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 APEX NC
2023-10-18 984-356 0–9 XXXall 10 · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NC 8389 RALEIGH NC
2023-10-11 984-354 0–9 XXXall 10 · 4 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J RALEIGH NC
2023-10-04 984-352 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 RALEIGH NC
2023-10-04 984-353 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NC 638E OXFORD NC
2023-10-03 984-351 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - NC 638E PITTSBORO NC
2023-08-24 984-346 0XXX1XXX2XXX3XXX · 4 holders which blocks → ONVOY, LLC - NC 638E BONLEE NC
2023-08-24 984-347 0XXX1XXX2XXX · 3 holders which blocks → ONVOY, LLC - NC 638E GOLDSTON NC
2023-08-24 984-350 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BENSON NC
2023-08-08 984-342 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GOLDSBORO NC
2023-08-08 984-343 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 APEX NC
2023-08-02 984-341 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NC 638E OLIVIA NC
2023-08-01 984-340 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E DURHAM NC
2023-07-26 984-339 0XXX1XXX2XXX3XXX5XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - NC 638E KNIGHTDALE NC
2023-07-25 984-336 0–9 XXXall 10 · 3 holders which blocks → AT&T - LOCAL 7421 CHAPELHILL NC
2023-07-25 984-337 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - NC 638E MOUNTOLIVE NC
2023-07-25 984-338 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - NC 638E RALEIGH NC
2023-07-12 984-335 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 6324 DURHAM NC
2023-06-12 984-332 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 RALEIGH NC
2023-06-12 984-334 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SANFORD NC
2023-05-19 984-252 0–9 XXXall 10 · 4 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 KENLY NC
2023-04-24 984-848 0–9 XXXall 10 · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H WENDELL NC
2023-04-21 984-331 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OXFORD NC
2023-03-23 984-330 0–9 XXXall 10 · 2 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 APEX NC
2023-02-28 984-326 0–9 XXXall 10 · 3 holders which blocks → HADLO TECHNOLOGIES, LLC 436J RALEIGH NC
2023-02-22 984-324 0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 2 holders which blocks → NUSO, LLC 732J WAKEFOREST NC
2023-02-22 984-325 0–9 XXXall 10 · 2 holders which blocks → COMCAST IP PHONE, LLC 318J RALEIGH NC
2023-01-26 984-323 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GOLDSBORO NC
2023-01-13 984-594 0XXX1XXX5XXX · 2 holders which blocks → ONVOY, LLC - NC 638E PRINCETON NC
2023-01-11 984-320 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 LOUISBURG NC
2022-12-12 984-318 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E RALEIGH NC
2022-12-09 984-314 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E CHAPELHILL NC
2022-12-09 984-317 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E DURHAM NC
2022-11-17 984-319 0–9 XXXall 10 · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 APEX NC
2022-11-03 984-310 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CLAYTON NC
2022-10-13 984-316 0–9 XXXall 10 · 2 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E DURHAM NC
2022-10-12 984-306 0–9 XXXall 10 · 2 holders which blocks → NUSO, LLC 732J CARY NC
2022-09-02 984-348 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - NC 638E HILLSBORGH NC
2022-09-02 984-468 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - NC 638E WAKEFOREST NC

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.