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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2014-05-14 412-930 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 6392 PTTSBGZON1 PA
2014-05-14 434-234 0–9 XXXall 10 · 7 holders which blocks → PEERLESS NETWORK OF VIRGINIA, LLC - VA 275G CHARLOTSVL VA
2014-05-14 470-891 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA GA
2014-05-14 470-991 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA 6540 ATLANTA NE GA
2014-05-14 520-328 0–9 XXXall 10 · 3 holders which blocks → QWEST CORPORATION 9636 TUCSON AZ
2014-05-14 580-722 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 8 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OK 5257 NEWKIRK OK
2014-05-14 720-639 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CO 026D DENVER CO
2014-05-14 727-212 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 CLEARWATER FL
2014-05-14 980-549 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E STONYPOINT NC
2014-05-13 252-881 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E ROXOBEL NC
2014-05-13 430-208 0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DEKALB TX
2014-05-13 615-840 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 NASHVILLE TN
2014-05-13 940-978 2XXX3XXX4XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 RUNAWAYBAY TX
2014-05-12 202-766 0–9 XXXall 10 · 3 holders which blocks → STARPOWER COMMUNICATIONS, LLC - DC 8831 WSHNGTNZN1 DC
2014-05-12 312-763 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J CHICGOZN01 IL
2014-05-12 351-207 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J GEORGETOWN MA
2014-05-12 579-267 not yet reported which blocks → Comwave Networks 160G St-Jean —
2014-05-12 579-268 not yet reported which blocks → Comwave Networks 160G St-Hyacinthe —
2014-05-12 587-945 not yet reported which blocks → Bell Mobility 6574 Calgary —
2014-05-12 616-229 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E HUDSONVL MI
2014-05-12 619-455 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-05-12 705-909 not yet reported which blocks → Comwave Networks 160G Huntsville —
2014-05-12 720-822 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 6567 DENVER CO
2014-05-12 845-690 0–9 XXXall 10 · 8 holders which blocks → PAETEC ITEL, LLC 829J GARRISON NY
2014-05-12 970-771 0–9 XXXall 10 · 7 holders which blocks → COMCAST IP PHONE, LLC 318J BRECKENRDG CO
2014-05-09 248-717 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - MI 991E MILFDWH LK MI
2014-05-09 434-290 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F APPOMATTOX VA
2014-05-09 470-329 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - GA 983E TALLAPOOSA GA
2014-05-09 518-740 0–9 XXXall 10 · 4 holders which blocks → PAETEC ITEL, LLC 829J TANNERSVL NY
2014-05-08 224-665 0–9 XXXwhole prefix which blocks → ILLINOIS BELL TEL CO 9329 WAUKEGAN IL
2014-05-08 346-932 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - TX 903C HOUSTON TX
2014-05-08 431-487 not yet reported which blocks → TELUS Integrated Communications 2782 Morden —
2014-05-08 506-255 not yet reported which blocks → TELUS Integrated Communications 2782 Bathurst —
2014-05-08 579-434 not yet reported which blocks → Videotron Ltd. 8306 St-Remi —
2014-05-08 579-435 not yet reported which blocks → Videotron Ltd. 8306 St-Constant —
2014-05-08 606-767 0–9 XXXall 10 · 5 holders which blocks → POWERTEL KENTUCKY LICENSES, INC. 365C LONDON KY
2014-05-08 612-815 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWINCITIES MN
2014-05-08 720-485 0–9 XXXall 10 · 3 holders which blocks → COMCAST IP PHONE, LLC 318J DENVER CO
2014-05-08 867-364 not yet reported which blocks → Bell Mobility 6574 Nahanni Butte —
2014-05-08 867-365 not yet reported which blocks → Bell Mobility 6574 Gameti —
2014-05-08 912-712 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF GEORGIA, LLC - GA 909E SAVANNAH GA
2014-05-08 913-264 0–9 XXXwhole prefix which blocks → EVERFAST FIBER NETWORKS LLC 3915 BONNER SPG KS
2014-05-08 920-770 0–9 XXXall 10 · 4 holders which blocks → PEERLESS NETWORK OF WISCONSIN, LLC - WI 227F GREEN BAY WI
2014-05-07 430-215 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 551G LONGVIEW TX
2014-05-07 573-502 0–9 XXXall 10 · 5 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K GRAVOIS ML MO
2014-05-07 657-237 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HUNTITNBCH CA
2014-05-07 661-520 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F BKFD MAIN CA
2014-05-07 734-725 0–9 XXXall 10 · 5 holders which blocks → COMCAST IP PHONE, LLC 318J WAYNE MI
2014-05-07 806-503 0–9 XXXall 10 · 5 holders which blocks → NUSO, LLC 551G LUBBOCK TX
2014-05-07 818-965 0–9 XXXall 10 · 4 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CANOGAPARK 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.