NumberResearch Membership · Data 09/25/2026

Recent prefix assignments

358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/25/2026

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. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 31
ONVOY, LLC - CA 27
NEW CINGULAR WIRELESS PCS, LLC - IL 27
ONVOY, LLC - NJ 15
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
— 854-959 not yet reported which blocks → SC
— 854-976 not yet reported which blocks → SC
— 856-205 4XXX which blocks → VERIZON NEW JERSEY, INC. 9206 VINELAND NJ
— 856-207 none assigned yet which blocks → METROPCS, INC. 5562 VINELAND NJ
— 856-209 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NJ 118F CAMDEN NJ
— 856-210 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ 7134 BERLIN NJ
— 856-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NJ
— 856-214 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F SWEDESBORO NJ
— 856-216 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 HADDONFLD NJ
— 856-217 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 WOODBURY NJ
— 856-218 3XXX5XXX6XXX · 3 holders which blocks → VERIZON NEW JERSEY, INC. 9206 PITMAN NJ
— 856-219 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NJ 118F BEAVER BRK NJ
— 856-220 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MOORESTOWN 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
— 856-229 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 HADDONFLD 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
— 856-237 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 WILLIAMSTN NJ
— 856-240 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 8 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 COLLINGSWD NJ
— 856-241 6XXX which blocks → VERIZON NEW JERSEY, INC. 9206 SWEDESBORO NJ
— 856-242 0–9 XXXall 10 · 8 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 MOORESTOWN NJ
— 856-243 2XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J GLASSBORO NJ
— 856-244 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 GLASSBORO NJ
— 856-245 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 BLACKWOOD NJ
— 856-246 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 CAMDEN NJ
— 856-247 0–9 XXXwhole prefix which blocks → BLOCK LINE SYSTEMS, LLC - NJ 835E BERLIN NJ
— 856-248 0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 LAUREL SPG NJ
— 856-251 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 WOODBURY NJ
— 856-253 not yet reported which blocks → SPOK, INC. 6630 HADDONFLD NJ
— 856-255 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 RIVERSIDE NJ
— 856-256 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 PITMAN NJ
— 856-258 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J LAUREL SPG NJ
— 856-260 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 XXXXXXXXXX NJ
— 856-261 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ 6391 HADDON HTS NJ
— 856-262 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 WILLIAMSTN NJ
— 856-265 0XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 MILLVILLE NJ
— 856-267 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NJ 4804 MARLTON NJ
— 856-269 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → PAETEC ITEL, LLC 829J PITMAN NJ
— 856-270 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 PITMAN NJ
— 856-273 not yet reported which blocks → VERIZON NEW JERSEY, INC. 9206 MOORESTOWN NJ
— 856-275 0XXX2XXX · 2 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 SALEM NJ
— 856-276 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → TELEPORT COMMUNICATIONS AMERICA, LLC - NJ 7310 PENNSGROVE NJ

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.