NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 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 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
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
2012-08-30 561-325 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 BOCA RATON FL
2012-08-30 561-405 0–9 XXXall 10 · 6 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 8664 BOCA RATON FL
2012-08-30 615-803 0–9 XXXall 10 · 3 holders which blocks → POWERTEL NASHVILLE LICENSES, INC. 7476 NASHVILLE TN
2012-08-30 661-432 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BKFD MAIN CA
2012-08-30 754-203 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E CORAL SPG FL
2012-08-30 845-686 0XXX1XXX2XXX9XXX · 2 holders which blocks → PAETEC ITEL, LLC 829J POUGHKEPSI NY
2012-08-30 863-336 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E FROSTPROOF FL
2012-08-30 865-317 0–9 XXXall 10 · 6 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K LENOIRCITY TN
2012-08-29 229-583 0–9 XXXall 10 · 4 holders which blocks → PUBLIC SERVICE WIRELESS SERVICES, INC. 901G ALBANY GA
2012-08-29 254-316 0–9 XXXall 10 · 4 holders which blocks → SOUTHWESTERN BELL 9533 TEMPLE TX
2012-08-29 313-353 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DETROITZN5 MI
2012-08-29 313-428 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 DETROITZN5 MI
2012-08-29 351-202 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F PEPPERELL MA
2012-08-29 351-205 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX which blocks → PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA 268F GEORGETOWN MA
2012-08-29 478-583 0–9 XXXall 10 · 3 holders which blocks → PUBLIC SERVICE WIRELESS SERVICES, INC. 901G MACON GA
2012-08-29 512-831 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - TX 903C AUSTIN TX
2012-08-29 571-414 0–9 XXXall 10 · 3 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WSNGTNZN08 VA
2012-08-29 703-844 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G DULLES VA
2012-08-29 705-535 not yet reported which blocks → Iristel Inc. 154E Huntsville —
2012-08-29 762-583 0–9 XXXall 10 · 6 holders which blocks → PUBLIC SERVICE WIRELESS SERVICES, INC. 901G COLUMBUS GA
2012-08-29 762-847 0–9 XXXall 10 · 6 holders which blocks → TRUVISTA COMMUNICATIONS OF GEORGIA, LLC - GA 847G ROYSTON GA
2012-08-29 802-692 0–9 XXXall 10 · 5 holders which blocks → VTEL WIRELESS, INC. 9814 SPRINGFLD VT
2012-08-29 812-713 0–9 XXXall 10 · 2 holders which blocks → FRONTIER NORTH, INC. - IN 0779 CRANE IN
2012-08-29 848-214 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF NEW JERSEY, LLC - NJ 264F DEAL NJ
2012-08-29 941-222 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF FLORIDA, LLC - FL 902E BRADENTON FL
2012-08-28 201-685 0–9 XXXall 10 · 7 holders which blocks → VERIZON NEW JERSEY, INC. 9206 JERSEYCITY NJ
2012-08-28 289-415 not yet reported which blocks → TELUS Integrated Communications 2782 Beeton —
2012-08-28 289-860 not yet reported which blocks → Comwave Networks 160G Hamilton —
2012-08-28 407-800 0–9 XXXall 10 · 2 holders which blocks → TERRA NOVA TELECOM INC. 145J ORLANDO FL
2012-08-28 438-844 not yet reported which blocks → TELUS Quebec 2243 Montreal —
2012-08-28 440-408 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLCREST OH
2012-08-28 440-430 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 TRINITY OH
2012-08-28 440-501 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 VICTORY OH
2012-08-28 587-716 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Calgary —
2012-08-28 613-712 not yet reported which blocks → Rogers Communications Canada Inc. (Wireless) 8821 Ottawa-Hull —
2012-08-28 614-913 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 HILLIARD OH
2012-08-28 646-790 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J NWYRCYZN01 NY
2012-08-28 647-660 not yet reported which blocks → Comwave Networks 160G Toronto —
2012-08-28 661-437 0–9 XXXall 10 · 6 holders which blocks → METROPCS, INC. 5562 BKFD MAIN CA
2012-08-28 760-493 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VICTORVL CA
2012-08-28 951-355 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 PERRIS CA
2012-08-27 207-616 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K WATERVILLE ME
2012-08-27 267-313 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 967E PENNSBURG PA
2012-08-27 470-221 0–9 XXXall 10 · 2 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E GRANTVILLE GA
2012-08-27 470-293 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E JACKSON GA
2012-08-27 470-335 0–9 XXXwhole prefix which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E CEDARTOWN GA
2012-08-27 581-384 not yet reported which blocks → Telecommunications Xittel Inc 247F Laterriere —
2012-08-27 581-385 not yet reported which blocks → Telecommunications Xittel Inc 247F St-Ambroise-de-Chicoutimi —
2012-08-27 581-386 not yet reported which blocks → Telecommunications Xittel Inc 247F St-Fulgence —
2012-08-27 581-387 not yet reported which blocks → Telecommunications Xittel Inc 247F Ste-Rose-du-Nord —

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.