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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 732-251 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 SOUTHRIVER NJ
— 732-252 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J FREEHOLD NJ
— 732-253 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 8 holders which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-254 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 SOUTHRIVER NJ
— 732-255 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-257 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 SOUTHRIVER NJ
— 732-258 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-259 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 RAHWAY NJ
— 732-260 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 XXXXXXXXXX NJ
— 732-261 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 METUCHEN NJ
— 732-262 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PTPLEASANT NJ
— 732-263 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 LONGBRANCH NJ
— 732-264 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 KEYPORT NJ
— 732-265 not yet reported which blocks → SPOK, INC. 6630 WOODBRIDGE NJ
— 732-266 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 NEWBRNSWCK NJ
— 732-267 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 TOMS RIVER NJ
— 732-268 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 RED BANK NJ
— 732-269 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-270 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-271 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-273 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 DUNELLEN NJ
— 732-274 7XXX which blocks → VERIZON NEW JERSEY, INC. 9206 MONMTH JCT NJ
— 732-275 2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MIDDLETOWN NJ
— 732-276 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 LAKEWOOD NJ
— 732-278 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 TOMS RIVER NJ
— 732-279 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-280 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BELMAR NJ
— 732-281 4XXX7XXX8XXX9XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-282 7XXX8XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 SPRINGLAKE NJ
— 732-283 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 METUCHEN NJ
— 732-284 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 MIDDLETOWN NJ
— 732-285 0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 HOLMDEL NJ
— 732-286 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-287 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 METUCHEN NJ
— 732-288 3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 TOMS RIVER NJ
— 732-289 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 NEWBRNSWCK NJ
— 732-290 4XXX5XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MATAWAN NJ
— 732-291 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 ATLATCHLDS NJ
— 732-292 5XXX6XXX7XXX8XXX · 4 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MANASQUAN NJ
— 732-293 6XXX7XXX8XXX9XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 PERTHAMBOY NJ
— 732-294 3XXX6XXX which blocks → VERIZON NEW JERSEY, INC. 9206 FREEHOLD NJ
— 732-295 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PTPLEASANT NJ
— 732-296 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 NEWBRNSWCK NJ
— 732-297 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 FRANKLINPK NJ
— 732-298 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 FREEHOLD NJ
— 732-299 3XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 FREEHOLD NJ
— 732-300 none assigned yet which blocks → METROPCS, INC. 5562 TOMS RIVER NJ
— 732-301 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EMILLSTONE NJ
— 732-302 8XXX which blocks → VERIZON NEW JERSEY, INC. 9206 BOUNDBROOK NJ
— 732-303 4XXX which blocks → VERIZON NEW JERSEY, INC. 9206 FREEHOLD 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.