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 272
NEW CINGULAR WIRELESS PCS, LLC - DC 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
2017-05-17 272-422 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E DINGMAFRRY PA
2017-05-16 272-335 0–9 XXXall 10 · 7 holders which blocks → METROPCS, INC. 5562 SHAMOKIN PA
2017-05-09 272-359 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - PA 002F GIRARDVL PA
2017-05-09 272-867 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H SCRANTON PA
2017-04-07 272-786 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 KULPMONT PA
2016-10-24 272-762 0–9 XXXwhole prefix which blocks → VERIZON PENNSYLVANIA, INC. 9208 STROUDSBG PA
2016-09-28 272-208 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 POTTSVILLE PA
2016-09-28 272-219 0–9 XXXall 10 · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MT POCONO PA
2016-09-21 272-209 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → METROPCS, INC. 5562 WILLIAMSPT PA
2016-09-06 272-225 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E WEATHERLY PA
2016-09-06 272-282 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E MCKEANSBG PA
2016-09-06 272-381 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E SCHUYLKHVN PA
2016-09-02 272-204 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - PA 547E FRIEDENSBG PA
2016-08-23 272-295 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E BLOOMSBURG PA
2016-08-16 272-770 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E SCRANTON PA
2016-05-25 272-808 0–9 XXXall 10 · 6 holders which blocks → CTSI, INC. - PA 7513 WILKSBARRE PA
2016-04-27 272-203 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E BLOOMSBURG PA
2016-03-31 272-201 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 STROUDSBG PA
2016-03-24 272-212 0–9 XXXwhole prefix which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 STROUDSBG PA
2016-02-16 272-466 0–9 XXXall 10 · 3 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J WOOLRICH PA
2014-10-27 272-268 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 WILKSBARRE PA
2014-09-26 272-202 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J WILLIAMSPT PA
— 272-200 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E STROUDSBG PA
— 272-205 0–9 XXXall 10 · 3 holders which blocks → TELNYX LLC 073H MANTZVILLE PA
— 272-210 not yet reported which blocks → PA
— 272-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-213 0–9 XXXall 10 · 4 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 SAYLORSBG PA
— 272-221 0–9 XXXall 10 · 3 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 POTTSVILLE PA
— 272-222 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - PA 547E BEAVER SPG PA
— 272-236 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E WILLIAMSPT PA
— 272-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-312 0XXX1XXX3XXX4XXX5XXX · 3 holders which blocks → ONVOY, LLC - PA 547E GALILEE PA
— 272-333 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E FRACKVILLE PA
— 272-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-435 0–9 XXXall 10 · 2 holders which blocks → CORE COMMUNICATIONS, INC. - PA 3806 HAZLETON PA
— 272-444 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - PA 547E SELINSGRV PA
— 272-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT PA
— 272-570 not yet reported which blocks → PA
— 272-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-666 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E TAMAQUA PA
— 272-700 not yet reported which blocks → PA
— 272-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-777 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - PA 547E GALILEE PA
— 272-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-888 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - PA 547E HAMLIN PA
— 272-890 not yet reported which blocks → PA
— 272-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 272-936 not yet reported which blocks → PA
— 272-950 not yet reported which blocks → 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.