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
2012-02-23 609-508 0–9 XXXall 10 · 6 holders which blocks → CSC VOICE, LLC 612K TRENTON NJ
2012-02-23 641-925 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 5 holders which blocks → COMMUNICATIONS 1 NETWORK, INC. - IA 842E GARNER IA
2012-02-23 671-747 not yet reported which blocks → PTI PACIFICA INC. 387C AGANA GU
2012-02-23 769-777 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J JACKSON MS
2012-02-23 848-202 0–9 XXXall 10 · 4 holders which blocks → CSC VOICE, LLC 612K NEWBRNSWCK NJ
2012-02-23 872-205 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2012-02-23 902-703 not yet reported which blocks → Iristel Inc. 154E Halifax —
2012-02-23 902-704 not yet reported which blocks → Iristel Inc. 154E Halifax —
2012-02-23 902-813 not yet reported which blocks → Iristel Inc. 154E Charlottetown —
2012-02-23 902-816 not yet reported which blocks → Iristel Inc. 154E Charlottetown —
2012-02-23 954-440 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J FTLAUDERDL FL
2012-02-22 352-415 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J GAINESVL FL
2012-02-22 405-758 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 OKLA CITY OK
2012-02-22 407-779 0–9 XXXall 10 · 2 holders which blocks → PAETEC ITEL, LLC 829J ORLANDO FL
2012-02-22 561-225 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 WPALMBEACH FL
2012-02-22 606-689 0–9 XXXall 10 · 5 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C CORBIN KY
2012-02-22 762-222 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J AUGUSTA GA
2012-02-22 806-218 6XXX7XXX8XXX9XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 LUBBOCK TX
2012-02-22 913-215 0–9 XXXall 10 · 4 holders which blocks → CENTURYLINK COMMUNICATIONS, LLC 508J GARDNER KS
2012-02-21 202-814 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 6402 WSHNGTNZN1 DC
2012-02-21 208-780 0–9 XXXall 10 · 2 holders which blocks → ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7865 BOISE ID
2012-02-21 251-206 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J MOBILE AL
2012-02-21 404-594 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2012-02-21 404-764 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2012-02-21 407-985 0–9 XXXall 10 · 3 holders which blocks → BHN IP ENABLED SERVICES, LLC 045L ORLANDO FL
2012-02-21 423-419 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CUMBERLDGP TN
2012-02-21 423-516 0–9 XXXall 10 · 6 holders which blocks → UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 4510 SULIVNGDNS TN
2012-02-21 470-269 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 WINDER GA
2012-02-21 570-728 0–9 XXXall 10 · 4 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 POTTSVILLE PA
2012-02-21 786-760 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 MIAMI FL
2012-02-21 786-762 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 MIAMI FL
2012-02-21 786-763 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 MIAMI FL
2012-02-21 864-308 0–9 XXXall 10 · 5 holders which blocks → SUNCOM DBA T-MOBILE USA 8645 SPARTANBG SC
2012-02-21 907-810 7XXX which blocks → GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION 6872 DELTA JCT AK
2012-02-20 631-496 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SELDEN NY
2012-02-20 916-426 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SCRM NORTH CA
2012-02-17 262-648 0–9 XXXwhole prefix which blocks → ONVOY, LLC - WI 225C MILWAUKZN2 WI
2012-02-17 339-201 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MA 4018 WEYMOUTH MA
2012-02-17 469-205 0–9 XXXwhole prefix which blocks → ONVOY, LLC - TX 903C DLFTWTARPT TX
2012-02-17 470-222 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2012-02-17 470-289 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2012-02-17 470-328 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2012-02-17 470-336 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2012-02-17 470-673 0–9 XXXwhole prefix which blocks → ONVOY, LLC - GA 067D ATLANTA GA
2012-02-17 480-439 0–9 XXXwhole prefix which blocks → ONVOY, LLC - AZ 630E PHOENIX AZ
2012-02-17 505-354 0XXX1XXX4XXX5XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NM 5470 SHIPROCK NM
2012-02-17 505-422 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 CROWNPOINT NM
2012-02-17 512-256 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F KYLE TX
2012-02-17 567-218 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 TOLEDO OH
2012-02-17 619-720 0–9 XXXwhole prefix which blocks → ONVOY, LLC - CA 649C SNDG SNDG CA

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.