NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

355 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
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 28
NEW CINGULAR WIRELESS PCS, LLC - DC 26
ONVOY, LLC - NJ 18
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
— 732-422 5XXX which blocks → VERIZON NEW JERSEY, INC. 9206 FRANKLINPK NJ
— 732-423 none assigned yet which blocks → METROPCS, INC. 5562 WOODBRIDGE NJ
— 732-424 4XXX6XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 DUNELLEN NJ
— 732-428 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 RAHWAY NJ
— 732-431 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 FREEHOLD NJ
— 732-432 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 SOUTHRIVER NJ
— 732-433 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 NEWBRNSWCK NJ
— 732-435 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-437 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 NEWBRNSWCK NJ
— 732-438 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MONMTH JCT NJ
— 732-440 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 EATONTOWN NJ
— 732-441 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MATAWAN NJ
— 732-442 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PERTHAMBOY NJ
— 732-443 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NJ 118F LONGBRANCH NJ
— 732-444 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOLMDEL NJ
— 732-445 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-446 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 ENGLISHTN NJ
— 732-447 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 NEWBRNSWCK NJ
— 732-448 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-449 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 SPRINGLAKE NJ
— 732-450 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 RED BANK NJ
— 732-451 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW JERSEY, INC. 9206 PTPLEASANT NJ
— 732-452 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 METUCHEN NJ
— 732-453 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RAHWAY NJ
— 732-454 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - NJ 637C RAHWAY NJ
— 732-457 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-458 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PTPLEASANT NJ
— 732-459 not yet reported which blocks → AQUIS COMMUNICATIONS, INC. 6919 RAHWAY NJ
— 732-460 4XXX which blocks → VERIZON NEW JERSEY, INC. 9206 EATONTOWN NJ
— 732-461 not yet reported which blocks → AQUIS COMMUNICATIONS, INC. 6919 RED BANK NJ
— 732-462 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 FREEHOLD NJ
— 732-463 4XXX which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-464 not yet reported which blocks → AQUIS COMMUNICATIONS, INC. 6919 SOUTHAMBOY NJ
— 732-465 9XXX which blocks → VERIZON NEW JERSEY, INC. 9206 DUNELLEN NJ
— 732-469 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-470 0XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 NEWBRNSWCK NJ
— 732-471 5XXX6XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 KEANSBURG NJ
— 732-472 not yet reported which blocks → AQUIS COMMUNICATIONS, INC. 6919 TOMS RIVER NJ
— 732-473 7XXX8XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-475 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 PTPLEASANT NJ
— 732-476 0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 METUCHEN NJ
— 732-477 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PTPLEASANT NJ
— 732-478 not yet reported which blocks → SPOK, INC. 6630 RAHWAY NJ
— 732-479 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 SOUTHAMBOY NJ
— 732-480 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-481 0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 ASBURYPARK NJ
— 732-482 1XXX9XXX which blocks → VERIZON NEW JERSEY, INC. 9206 METUCHEN NJ
— 732-483 4XXX6XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 LONGBRANCH NJ
— 732-484 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 NEWBRNSWCK NJ
— 732-486 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 PERTHAMBOY NJ

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.