NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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 26
Rogers Communications Canada Inc. (Wireless) 23
NEW CINGULAR WIRELESS PCS, LLC - IL 22
ONVOY, LLC - CA 21
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
— 850-978 not yet reported which blocks → SOUTHERN COMMUNICATIONS SERVICES, INC. 6744 FTWALTNBCH FL
— 850-980 not yet reported which blocks → POWERTEL JACKSONVILLE LICENSES, INC. 7472 TALLAHASSE FL
— 850-981 4XXX6XXX · 2 holders which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 MILTON FL
— 850-982 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 PENSACOLA FL
— 850-983 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 MILTON FL
— 850-984 6XXX7XXX · 2 holders which blocks → CENTURYLINK OF FLORIDA, INC. (CENTRAL) 0340 ST MARKS FL
— 850-986 not yet reported which blocks → CENTURYLINK OF FLORIDA, INC. (CENTRAL) 0340 FTWALTNBCH FL
— 850-994 not yet reported which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 PACE FL
— 850-995 6XXX which blocks → BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL 9417 PACE FL
— 850-997 not yet reported which blocks → CENTURYLINK OF FLORIDA, INC. (CENTRAL) 0340 MONTICELLO FL
— 854-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-218 0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 EASTCONWAY SC
— 854-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-511 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-555 not yet reported which blocks → MULTIPLE OCN LISTING MULT DIR ASST SC
— 854-611 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-700 not yet reported which blocks → SC
— 854-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-811 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX SC
— 854-950 not yet reported which blocks → SC
— 854-958 not yet reported which blocks → SC
— 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

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.