NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 814-498 1XXX3XXX4XXX8XXX · 3 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 ROCKLAND PA
— 814-502 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 ALTOONA PA
— 814-503 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J DUBOIS PA
— 814-504 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ERIE PA
— 814-505 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 ALTOONA PA
— 814-506 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 HUNTINGDON PA
— 814-507 0XXX1XXX2XXX6XXX7XXX · 3 holders which blocks → ONVOY, LLC - PA 547E EMPORIUM PA
— 814-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 814-512 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 ST MARYS PA
— 814-514 3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E MOUNTUNION PA
— 814-516 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 OIL CITY PA
— 814-517 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E ELKLAND PA
— 814-518 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NORTH, INC. - PA 0169 FRANKLIN PA
— 814-521 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 SOMERSET PA
— 814-523 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → ONVOY, LLC - PA 547E PATTON PA
— 814-528 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → VERIZON NORTH, INC. - PA 0169 ERIE PA
— 814-529 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELNYX LLC 073H UNION CITY PA
— 814-532 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-533 1XXX9XXX which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-534 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-535 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-536 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-539 not yet reported which blocks → VERIZON NORTH, INC. - PA 0169 JOHNSTOWN PA
— 814-541 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 REYNOLDSVL PA
— 814-542 0XXX1XXX5XXX6XXX7XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MOUNTUNION PA
— 814-543 2XXX3XXX4XXX5XXX7XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MOUNTUNION PA
— 814-544 1XXX3XXX5XXX6XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 ROULETTE PA
— 814-545 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - PA 547E ROULETTE PA
— 814-546 0XXX1XXX3XXX4XXX5XXX7XXX · 3 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 DRIFTWOOD PA
— 814-547 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 MEADVILLE PA
— 814-549 0XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLINTONVL PA
— 814-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST PA
— 814-558 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BRADFORD PA
— 814-560 0–9 XXXall 10 · 8 holders which blocks → ONVOY, LLC - PA 547E TIONESTA PA
— 814-561 0XXX1XXX2XXX3XXX5XXX6XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E KANE PA
— 814-563 0XXX1XXX2XXX8XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 YOUNGSVL PA
— 814-566 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ERIE PA
— 814-567 not yet reported which blocks → SPOK, INC. 6630 ALTOONA PA
— 814-568 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → COMCAST IP PHONE, LLC 318J SMETHPORT PA
— 814-569 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 ALTOONA PA
— 814-571 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 BELLEFONTE PA
— 814-572 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ERIE PA
— 814-577 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 CLEARFIELD PA
— 814-579 0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - PA 547E ROCKWOOD PA
— 814-581 0–9 XXXall 10 · 7 holders which blocks → TELNYX LLC 073H SPARTANSBG PA
— 814-583 8XXX which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 LUTHERSBG PA
— 814-584 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 WARREN PA
— 814-585 8XXX which blocks → UNITED STATES CELLULAR - PA 6286 BEDFORD PA
— 814-587 none assigned yet which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 CONNEAUTVL PA
— 814-589 0XXX2XXX3XXX9XXX · 4 holders which blocks → VERIZON NORTH, INC. - PA 0169 PLEASANTVL PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.