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 223
ONVOY, LLC - PA 77
D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 27
FRACTEL, LLC 24
TON80 COMMUNICATIONS, LLC 16
ONVOY SPECTRUM, LLC 11
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
2023-09-12 223-326 0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → ONVOY, LLC - PA 547E WAYNESBORO PA
2023-09-12 223-327 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E HARISBGZN2 PA
2023-09-12 223-328 0XXX2XXX which blocks → ONVOY, LLC - PA 547E THOMPSONTN PA
2023-09-12 223-329 0XXX1XXX2XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E FRYSTOWN PA
2023-09-12 223-330 0XXX1XXX2XXX3XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E NEWHOLLAND PA
2023-09-12 223-331 1XXX2XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E ADAMSTOWN PA
2023-09-12 223-335 0XXX1XXX2XXX5XXX · 2 holders which blocks → ONVOY, LLC - PA 547E MANHEIM PA
2023-09-12 223-337 0XXX2XXX7XXX · 2 holders which blocks → ONVOY, LLC - PA 547E NEEDMORE PA
2023-08-16 223-320 0XXX1XXX3XXX8XXX · 3 holders which blocks → ONVOY, LLC - PA 547E GRATZ PA
2023-08-16 223-325 0XXX1XXX3XXX8XXX · 2 holders which blocks → ONVOY, LLC - PA 547E LEWISBERRY PA
2023-07-27 223-223 0–9 XXXall 10 · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H RED LION PA
2023-06-15 223-319 0XXX2XXX which blocks → ONVOY, LLC - PA 547E MARIETTA PA
2023-06-15 223-321 2XXX which blocks → ONVOY, LLC - PA 547E DUNCANNON PA
2023-06-13 223-314 0XXX1XXX2XXX9XXX which blocks → ONVOY, LLC - PA 547E LITTLESTN PA
2023-06-13 223-318 0XXX2XXX · 2 holders which blocks → ONVOY, LLC - PA 547E YORK SPG PA
2023-06-08 223-313 2XXX3XXX7XXX · 3 holders which blocks → ONVOY, LLC - PA 547E AIRVILLE PA
2023-06-08 223-315 0XXX1XXX2XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E DENVER PA
2023-03-31 223-310 0XXX which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F MYERSTOWN PA
2023-03-31 223-312 0XXX1XXX5XXX6XXX8XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 MCVEYTOWN PA
2023-03-16 223-309 0XXX1XXX2XXX3XXX4XXX9XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J SPRING GRV PA
2023-02-21 223-307 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 LANCASTER PA
2023-02-07 223-306 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 732J YORK PA
2022-10-25 223-338 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E LEOLA PA
2022-10-25 223-432 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E FAYETTEVL PA
2022-10-24 223-823 0XXX1XXX6XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E LITITZ PA
2022-10-18 223-723 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E LOGANVILLE PA
2022-10-11 223-867 0–9 XXXall 10 · 2 holders which blocks → COMMIO, LLC 939H HANOVER PA
2022-10-10 223-305 1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → NUSO, LLC 732J DELTA PA
2022-09-29 223-301 4XXX which blocks → COMCAST IP PHONE, LLC 318J REEDSVILLE PA
2022-09-29 223-304 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → COMCAST IP PHONE, LLC 318J NEWVILLE PA
2022-09-14 223-298 0XXX1XXX2XXX7XXX8XXX9XXX · 2 holders which blocks → COMCAST IP PHONE, LLC 318J HALIFAX PA
2022-09-02 223-292 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - PA 547E JONESTOWN PA
2022-09-02 223-294 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E MIDDLETOWN PA
2022-09-02 223-295 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - PA 547E MOUNT JOY PA
2022-09-02 223-296 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - PA 547E MTHOLLYSPG PA
2022-06-07 223-291 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J GLEN ROCK PA
2022-05-24 223-316 0–9 XXXall 10 · 4 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 LEBANON PA
2022-04-15 223-290 0XXX1XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BIGLERVL PA
2022-04-11 223-284 0–9 XXXall 10 · 4 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 YORK PA
2022-03-28 223-281 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F COLUMBIA PA
2022-03-15 223-287 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 LANDISVL PA
2022-03-10 223-275 0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F WRIGHTSVL PA
2022-03-09 223-727 0XXX2XXX5XXX6XXX7XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J TOWER CITY PA
2022-02-28 223-543 0XXX3XXX4XXX5XXX · 2 holders which blocks → TON80 COMMUNICATIONS, LLC 516J ST THOMAS PA
2022-02-16 223-289 0–9 XXXall 10 · 2 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2022-02-09 223-366 0XXX1XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J STRASBURG PA
2022-02-08 223-678 0XXX1XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → TON80 COMMUNICATIONS, LLC 516J SCHAEFESTN PA
2022-02-04 223-362 0XXX1XXX2XXX3XXX4XXX5XXX · 4 holders which blocks → TON80 COMMUNICATIONS, LLC 516J NEWPORT PA
2022-02-04 223-966 0XXX1XXX2XXX3XXX6XXX · 5 holders which blocks → TON80 COMMUNICATIONS, LLC 516J RICHFIELD PA
2022-01-31 223-282 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 NEWBLOMFLD PA

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.