NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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 724
VERIZON PENNSYLVANIA, INC. 166
TELEPORT COMMUNICATIONS AMERICA, LLC - PA 74
LEVEL 3 COMMUNICATIONS, LLC - PA 69
NEW CINGULAR WIRELESS PCS, LLC - IL 60
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 59
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
— 724-494 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVER FLS PA
— 724-495 0XXX9XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 ROCHESTER PA
— 724-496 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUTLER PA
— 724-497 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PERRYOPOLS PA
— 724-498 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NEW CASTLE PA
— 724-499 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 ROGERSVL PA
— 724-502 2XXX4XXX6XXX · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 GIBSONIA PA
— 724-503 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J WASHINGTON PA
— 724-504 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUTLER PA
— 724-506 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → FIDIUM ENTERPRISE SERVICES, LLC 8597 BEAVER FLS PA
— 724-507 none assigned yet which blocks → ADVANCED TELEPHONE SYS INC DBA HTC COMMUNICATIONS 2522 AVELLA PA
— 724-508 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 MIDLAND PA
— 724-509 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 SHARON PA
— 724-510 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - PA 4007 NEW CASTLE PA
— 724-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX PA
— 724-512 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → PAETEC ITEL, LLC 829J ALIQUIPPA PA
— 724-513 none assigned yet which blocks → METROPCS, INC. 5562 ROCHESTER PA
— 724-514 0XXX7XXX9XXX · 2 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 CANONSBURG PA
— 724-515 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - PA 7315 PTGSBNZN23 PA
— 724-516 2XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 GREENSBURG PA
— 724-518 2XXX5XXX7XXX8XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 MONONGAHLA PA
— 724-520 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 LATROBE PA
— 724-522 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 6 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 JEANNETTE PA
— 724-523 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 JEANNETTE PA
— 724-525 8XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KITTANNING PA
— 724-526 1XXX2XXX4XXX7XXX8XXX · 3 holders which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 EAST BRADY PA
— 724-527 0XXX4XXX8XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 JEANNETTE PA
— 724-528 4XXX5XXX6XXX7XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 WMIDDLESEX PA
— 724-529 3XXX4XXX5XXX6XXX9XXX · 2 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 DAWSON PA
— 724-530 3XXX4XXX5XXX9XXX · 2 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 PLAINGROVE PA
— 724-532 7XXX which blocks → VERIZON PENNSYLVANIA, INC. 9208 LATROBE PA
— 724-533 1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 VOLANT PA
— 724-535 0XXX2XXX5XXX6XXX9XXX · 4 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 WAMPUM PA
— 724-537 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 LATROBE PA
— 724-538 2XXX6XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF PENNSYLVANIA, LLC 0209 EVANS CITY PA
— 724-539 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 LATROBE PA
— 724-541 8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 INDIANA PA
— 724-542 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 MTPLEASANT PA
— 724-543 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 KITTANNING PA
— 724-544 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAVER FLS PA
— 724-545 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 KITTANNING PA
— 724-546 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → VERIZON PENNSYLVANIA, INC. 9208 LOWELLVL PA
— 724-547 not yet reported which blocks → VERIZON PENNSYLVANIA, INC. 9208 MTPLEASANT PA
— 724-548 not yet reported which blocks → WINDSTREAM PENNSYLVANIA, INC. 0176 KITTANNING PA
— 724-550 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 UNIONTOWN PA
— 724-551 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J SHARON PA
— 724-552 3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → PAETEC ITEL, LLC 829J GREENSBURG PA
— 724-554 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WASHINGTON PA
— 724-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST PA
— 724-557 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 UNIONTOWN PA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.