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 856
VERIZON NEW JERSEY, INC. 181
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
2001-08-21 856-252 0XXX1XXX4XXX7XXX8XXX9XXX · 4 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-205 4XXX which blocks → VERIZON NEW JERSEY, INC. 9206 VINELAND NJ
— 856-216 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 HADDONFLD NJ
— 856-218 3XXX5XXX6XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 PITMAN NJ
— 856-222 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-223 4XXX7XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MULLICA HL NJ
— 856-224 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PAULSBORO NJ
— 856-225 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-227 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BLACKWOOD NJ
— 856-228 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BLACKWOOD NJ
— 856-231 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-232 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BLACKWOOD NJ
— 856-233 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-234 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-235 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-241 6XXX which blocks → VERIZON NEW JERSEY, INC. 9206 SWEDESBORO NJ
— 856-251 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 WOODBURY NJ
— 856-256 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PITMAN NJ
— 856-260 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 XXXXXXXXXX NJ
— 856-262 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 WILLIAMSTN NJ
— 856-273 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-293 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MILLVILLE NJ
— 856-299 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PENNSGROVE NJ
— 856-303 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 RIVERTON NJ
— 856-307 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 GLASSBORO NJ
— 856-309 6XXX which blocks → VERIZON NEW JERSEY, INC. 9206 LAUREL SPG NJ
— 856-310 3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 HADDON HTS NJ
— 856-312 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → VERIZON NEW JERSEY, INC. 9206 BEAVER BRK NJ
— 856-317 6XXX8XXX which blocks → VERIZON NEW JERSEY, INC. 9206 MERCHANTVL NJ
— 856-321 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MERCHANTVL NJ
— 856-327 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MILLVILLE NJ
— 856-337 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-338 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-339 8XXX which blocks → VERIZON NEW JERSEY, INC. 9206 SALEM NJ
— 856-342 0XXX1XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-346 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 LAUREL SPG NJ
— 856-351 3XXX4XXX5XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 PENNSGROVE NJ
— 856-354 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 HADDONFLD NJ
— 856-358 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 ELMER NJ
— 856-365 6XXX which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-370 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PLEASANTVL NJ
— 856-374 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 BLACKWOOD NJ
— 856-384 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 WOODBURY NJ
— 856-396 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MARLTON NJ
— 856-401 4XXX5XXX6XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 BLACKWOOD NJ
— 856-405 1XXX3XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → VERIZON NEW JERSEY, INC. 9206 VINELAND NJ
— 856-409 0–9 XXXall 10 · 5 holders which blocks → VERIZON NEW JERSEY, INC. 9206 CAMDEN NJ
— 856-414 5XXX8XXX · 2 holders which blocks → VERIZON NEW JERSEY, INC. 9206 MERCHANTVL NJ
— 856-415 3XXX4XXX5XXX6XXX · 4 holders which blocks → VERIZON NEW JERSEY, INC. 9206 WENONAH NJ
— 856-423 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PAULSBORO NJ

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.