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
— 732-549 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 METUCHEN NJ
— 732-550 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 XXXXXXXXXX NJ
— 732-553 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 SOUTHAMBOY NJ
— 732-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST NJ
— 732-556 4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 BELMAR NJ
— 732-557 1XXX which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-558 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 NEWBRNSWCK NJ
— 732-559 not yet reported which blocks → COOPERATIVE COMMUNICATIONS, INC. 8407 RED BANK NJ
— 732-560 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-561 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 JAMESBURG NJ
— 732-562 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 DUNELLEN NJ
— 732-563 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-564 3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-565 6XXX8XXX which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-566 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MATAWAN NJ
— 732-567 9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREEHOLD NJ
— 732-568 2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 EMILLSTONE NJ
— 732-571 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 LONGBRANCH NJ
— 732-572 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-573 2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-574 5XXX which blocks → VERIZON NEW JERSEY, INC. 9206 RAHWAY NJ
— 732-575 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ 3639 TOMS RIVER NJ
— 732-576 0XXX2XXX3XXX5XXX6XXX7XXX · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 RED BANK NJ
— 732-577 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 FREEHOLD NJ
— 732-578 8XXX which blocks → VERIZON NEW JERSEY, INC. 9206 EATONTOWN NJ
— 732-579 2XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWBRNSWCK NJ
— 732-580 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 FREEHOLD NJ
— 732-581 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 TOMS RIVER NJ
— 732-582 4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WOODBRIDGE NJ
— 732-583 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MATAWAN NJ
— 732-584 1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 BOUNDBROOK NJ
— 732-585 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PERTHAMBOY NJ
— 732-586 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PERTHAMBOY NJ
— 732-587 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 RAHWAY NJ
— 732-588 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 SOUTHAMBOY NJ
— 732-590 not yet reported which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 METUCHEN NJ
— 732-591 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MATAWAN NJ
— 732-593 5XXX7XXX9XXX · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 METUCHEN NJ
— 732-594 not yet reported which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7142 RAHWAY NJ
— 732-596 7XXX8XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 WOODBRIDGE NJ
— 732-597 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 TOMS RIVER NJ
— 732-598 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 FREEHOLD NJ
— 732-599 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 PERTHAMBOY NJ
— 732-600 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TOMS RIVER NJ
— 732-602 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 WOODBRIDGE NJ
— 732-603 1XXX which blocks → VERIZON NEW JERSEY, INC. 9206 METUCHEN NJ
— 732-604 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NJ 6623 TOMS RIVER NJ
— 732-605 3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 JAMESBURG NJ
— 732-606 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-607 4XXX5XXX8XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 SOUTHAMBOY 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.