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
Clear Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2023-12-07 272-369 1XXX6XXX · 2 holders which blocks → IP HORIZON LLC 515J LAKE ARIEL PA
2023-12-07 272-370 0XXX1XXX · 2 holders which blocks → IP HORIZON LLC 515J BEAVER SPG PA
2023-11-09 272-360 0XXX1XXX8XXX9XXX · 2 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 SHAMOKIN PA
2023-10-27 272-350 0XXX1XXX2XXX4XXX9XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H CNYNGHDRMS PA
2023-10-27 272-352 0XXX3XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H HALLSTEAD PA
2023-10-27 272-354 0XXX which blocks → ONVOY SPECTRUM, LLC 624H HUNTIGTNML PA
2023-10-27 272-355 0XXX1XXX2XXX3XXX4XXX5XXX9XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H POCONOLAKE PA
2023-10-27 272-357 0XXX1XXX2XXX7XXX · 3 holders which blocks → ONVOY SPECTRUM, LLC 624H SAYLORSBG PA
2023-10-27 272-358 0XXX which blocks → ONVOY SPECTRUM, LLC 624H SUSQUHANNA PA
2023-10-12 272-351 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITTSTON PA
2023-09-13 272-346 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → ONVOY, LLC - PA 547E OLYPHANT PA
2023-09-13 272-347 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E MOOSIC PA
2023-09-13 272-348 0XXX2XXX which blocks → ONVOY, LLC - PA 547E TURBOTVL PA
2023-09-13 272-349 2XXX3XXX4XXX · 3 holders which blocks → ONVOY, LLC - PA 547E MONTROSE PA
2023-09-12 272-343 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - PA 547E MILFORD PA
2023-09-01 272-334 0XXX1XXX2XXX8XXX9XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 LOCK HAVEN PA
2023-09-01 272-337 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLEASANTMT PA
2023-09-01 272-338 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITTSTON PA
2023-09-01 272-339 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWMILFORD PA
2023-09-01 272-340 0XXX1XXX2XXX3XXX4XXX which blocks → COMMIO, LLC 939H ELYSBURG PA
2023-09-01 272-341 0XXX1XXX2XXX3XXX4XXX9XXX · 2 holders which blocks → COMMIO, LLC 939H GALILEE PA
2023-09-01 272-342 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H JIM THORPE PA
2023-08-23 272-332 0–9 XXXwhole prefix which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 THOMPSON PA
2023-08-16 272-330 0XXX2XXX3XXX7XXX · 4 holders which blocks → TWILIO INTERNATIONAL, INC. 506J HARDING PA
2023-08-16 272-331 0XXX2XXX3XXX4XXX · 4 holders which blocks → ONVOY, LLC - PA 547E NORTHUBRLD PA
2023-07-28 272-272 0XXX1XXX2XXX3XXX4XXX7XXX · 6 holders which blocks → ONVOY SPECTRUM, LLC 624H TROUT RUN PA
2023-07-28 272-702 0XXX2XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H MONTGOMERY PA
2023-07-28 272-720 0XXX1XXX2XXX3XXX9XXX · 5 holders which blocks → ONVOY SPECTRUM, LLC 624H WEATHERLY PA
2023-07-27 272-326 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLEASANTMT PA
2023-07-27 272-328 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITTSTON PA
2023-07-27 272-329 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWMILFORD PA
2023-06-22 272-324 0XXX1XXX2XXX4XXX7XXX · 4 holders which blocks → ONVOY, LLC - PA 547E DINGMAFRRY PA
2023-06-22 272-325 0XXX2XXX5XXX7XXX · 3 holders which blocks → ONVOY, LLC - PA 547E MATAMORAS PA
2023-05-02 272-323 0XXX1XXX2XXX3XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J FRACKVILLE PA
2023-04-21 272-319 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PITTSTON PA
2023-04-21 272-320 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWMILFORD PA
2023-04-21 272-321 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLEASANTMT PA
2023-04-11 272-317 0–9 XXXall 10 · 4 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J KINGSTON PA
2023-04-11 272-318 0–9 XXXall 10 · 5 holders which blocks → BOOST SUBSCRIBERCO L.L.C. 490J STROUDSBG PA
2023-03-16 272-316 0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J SCHUYLKHVN PA
2023-03-08 272-315 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 HAZLETON PA
2023-03-03 272-314 0XXX1XXX2XXX3XXX9XXX · 4 holders which blocks → COMCAST IP PHONE, LLC 318J WAPWALLOPN PA
2023-02-09 272-310 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PLEASANTMT PA
2023-02-07 272-309 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 732J SCRANTON PA
2022-12-12 272-308 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NEWMILFORD PA
2022-11-17 272-307 0–9 XXXall 10 · 2 holders which blocks → RCN TELECOM SERVICES OF PENNSYLVANIA, INC. 7615 PITTSTON PA
2022-11-15 272-305 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 LEWISBURG PA
2022-11-15 272-306 0–9 XXXall 10 · 3 holders which blocks → COMMIO, LLC 939H BERWICK PA
2022-11-04 272-304 0–9 XXXall 10 · 6 holders which blocks → HD CARRIER LLC 321J HONESDALE PA
2022-11-03 272-732 2XXX3XXX · 2 holders which blocks → ONVOY, LLC - PA 547E SWEET VLY 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.