NumberResearch Membership · Data 09/27/2026

Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2014-12-11 236-420 not yet reported which blocks → Shaw Telecom Inc. 497E Kelowna —
2014-12-11 236-421 not yet reported which blocks → Shaw Telecom Inc. 497E North Kamloops —
2014-12-11 236-422 not yet reported which blocks → Shaw Telecom Inc. 497E Penticton —
2014-12-11 236-423 not yet reported which blocks → Shaw Telecom Inc. 497E Prince George —
2014-12-11 236-424 not yet reported which blocks → Shaw Telecom Inc. 497E Quesnel —
2014-12-11 236-425 not yet reported which blocks → Shaw Telecom Inc. 497E South Kamloops —
2014-12-11 236-426 not yet reported which blocks → Shaw Telecom Inc. 497E Vernon —
2014-12-11 267-945 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS ENTERPRISES, LP 6626 DOYLESTOWN PA
2014-12-11 305-902 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 KEYS FL
2014-12-11 321-701 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - FL 937C EAU GALLIE FL
2014-12-11 331-701 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2014-12-11 385-715 0–9 XXXall 10 · 4 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALT LAKE UT
2014-12-11 469-681 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2014-12-11 469-760 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DALLAS TX
2014-12-11 470-655 0–9 XXXall 10 · 6 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BUFORD GA
2014-12-11 470-658 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
2014-12-11 470-985 0–9 XXXwhole prefix which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ATLANTA GA
2014-12-11 502-996 0–9 XXXall 10 · 6 holders which blocks → AT&T ENTERPRISES, LLC 516C LOUISVILLE KY
2014-12-11 571-707 0–9 XXXall 10 · 6 holders which blocks → METROPCS, INC. 5562 LEESBURG VA
2014-12-11 587-358 not yet reported which blocks → Shaw Telecom Inc. 497E Calgary —
2014-12-11 619-753 0–9 XXXall 10 · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNDG SNDG CA
2014-12-11 669-248 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SUNNYVALE CA
2014-12-11 717-992 0–9 XXXall 10 · 4 holders which blocks → D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 6846 COLUMBIA PA
2014-12-11 757-975 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 NWPTNWSZN1 VA
2014-12-11 786-740 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 MIAMI FL
2014-12-11 804-655 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - VA 079F RICHMOND VA
2014-12-11 828-799 0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NC 998E GLENWDPDNC NC
2014-12-11 864-712 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - SC 077F ANDERSON SC
2014-12-11 867-722 not yet reported which blocks → Bell Mobility 6574 Colville Lake —
2014-12-11 901-480 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 MEMPHIS TN
2014-12-11 916-495 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 SCRM NORTH CA
2014-12-11 916-598 0–9 XXXall 10 · 2 holders which blocks → METROPCS, INC. 5562 SCRM MAIN CA
2014-12-11 925-378 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WALNUT CRK CA
2014-12-10 234-360 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 CANTON OH
2014-12-10 501-510 0–9 XXXall 10 · 7 holders which blocks → T-MOBILE USA, INC. 6529 LONOKE AR
2014-12-10 513-832 0–9 XXXall 10 · 5 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K CINCINNATI OH
2014-12-10 813-585 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 TAMPACEN FL
2014-12-10 913-331 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 7593 KANSASCITY KS
2014-12-10 913-332 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 7593 KANSASCITY KS
2014-12-10 913-472 0XXX1XXX2XXX6XXX7XXX8XXX · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 OSAWATOMIE KS
2014-12-09 205-900 0–9 XXXall 10 · 4 holders which blocks → AIRUS, INC. - AL 476H BIRMINGHAM AL
2014-12-09 305-399 0–9 XXXwhole prefix which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 KEYS FL
2014-12-09 402-973 0–9 XXXall 10 · 6 holders which blocks → AIRUS, INC. - NE 478H OMAHA NE
2014-12-09 415-510 0–9 XXXall 10 · 5 holders which blocks → LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 SNFC CNTRL CA
2014-12-09 504-517 0–9 XXXall 10 · 2 holders which blocks → AIRUS, INC. - LA 477H NEWORLEANS LA
2014-12-09 646-860 0–9 XXXall 10 · 5 holders which blocks → CABLEVISION LIGHTPATH, INC. - NY 7126 NWYRCYZN01 NY
2014-12-09 760-909 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 EL CENTRO CA
2014-12-09 804-939 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 RICHMOND VA
2014-12-09 860-934 0–9 XXXall 10 · 6 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - CT 6624 NORWICH CT
2014-12-09 909-675 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - CA 649C CLAREMONT CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.