NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

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

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
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
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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Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
— 440-980 not yet reported which blocks → SPOK, INC. 6630 WILLOUGHBY OH
— 440-984 1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → BRIGHTSPEED OF OHIO, LLC 0630 AMHERST OH
— 440-985 0XXX8XXX · 2 holders which blocks → BRIGHTSPEED OF OHIO, LLC 0630 AMHERST OH
— 440-986 0XXX1XXX9XXX · 3 holders which blocks → BRIGHTSPEED OF OHIO, LLC 0630 AMHERST OH
— 440-988 not yet reported which blocks → BRIGHTSPEED OF OHIO, LLC 0630 AMHERST OH
— 440-989 0XXX6XXX7XXX · 2 holders which blocks → BRIGHTSPEED OF OHIO, LLC 0630 LORAIN OH
— 440-991 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CHAGRINFLS OH
— 440-992 not yet reported which blocks → WINDSTREAM WESTERN RESERVE, INC. 0666 ASHTABULA OH
— 440-993 not yet reported which blocks → WINDSTREAM WESTERN RESERVE, INC. 0666 ASHTABULA OH
— 440-994 0XXX4XXX · 2 holders which blocks → WINDSTREAM WESTERN RESERVE, INC. 0666 ASHTABULA OH
— 440-995 5XXX8XXX9XXX · 2 holders which blocks → OHIO BELL TEL CO 9321 HILLCREST OH
— 440-996 6XXX7XXX8XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CHAGRINFLS OH
— 440-997 not yet reported which blocks → WINDSTREAM WESTERN RESERVE, INC. 0666 ASHTABULA OH
— 440-998 not yet reported which blocks → WINDSTREAM WESTERN RESERVE, INC. 0666 ASHTABULA OH
— 442-200 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - CA 649C CALEXICO CA
— 442-209 not yet reported which blocks → CA
— 442-211 not yet reported which blocks → MULTIPLE OCN LISTING MULT CA
— 442-213 not yet reported which blocks → CA
— 442-214 0–9 XXXall 10 · 7 holders which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TWNTYNPLMS CA
— 442-220 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks → INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H MT PASS CA
— 442-222 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - CA 649C OCSD OCSD CA
— 442-225 0–9 XXXall 10 · 5 holders which blocks → METROPCS, INC. 5562 EL CENTRO CA
— 442-227 0–9 XXXall 10 · 5 holders which blocks → HD CARRIER LLC 321J PALMDESERT CA
— 442-231 0–9 XXXall 10 · 3 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K EL CENTRO CA
— 442-238 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 EL CENTRO CA
— 442-239 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H DEATH VLY CA
— 442-241 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
— 442-252 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E CALEXICO CA
— 442-260 0–9 XXXall 10 · 4 holders which blocks → TERRA NOVA TELECOM INC. 145J DSERTHTSPG CA
— 442-261 0–9 XXXall 10 · 6 holders which blocks → INTEGRATED PATH COMMUNICATIONS, LLC - CA 707H SHOSHONE CA
— 442-263 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - CA 649C PAUMA VLY CA
— 442-267 0–9 XXXall 10 · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VTVL HSPR CA
— 442-275 0–9 XXXall 10 · 3 holders which blocks → NUSO, LLC 551G PALM SPG CA
— 442-283 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL CENTRO CA
— 442-300 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - CA 649C INDIO CA
— 442-310 not yet reported which blocks → CA
— 442-311 not yet reported which blocks → MULTIPLE OCN LISTING MULT CA
— 442-318 0XXX1XXX4XXX8XXX · 4 holders which blocks → ONVOY, LLC - CA 649C LEE VINING CA
— 442-323 not yet reported which blocks → CA
— 442-328 0–9 XXXall 10 · 4 holders which blocks → COMMIO, LLC 939H LONE PINE CA
— 442-333 0–9 XXXall 10 · 6 holders which blocks → BANDWIDTH.COM CLEC, LLC - CA 981E OCSD OCSD CA
— 442-345 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - CA 649C HOLTVILLE CA
— 442-353 0–9 XXXall 10 · 3 holders which blocks → SKYE TELECOM LLC DBA SKYETEL 622J VICTORVL CA
— 442-394 0–9 XXXall 10 · 4 holders which blocks → NUSO, LLC 732J INDIO CA
— 442-400 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
— 442-408 not yet reported which blocks → CA
— 442-411 not yet reported which blocks → MULTIPLE OCN LISTING MULT CA
— 442-415 not yet reported which blocks → CA
— 442-423 0XXX1XXX3XXX5XXX7XXX8XXX9XXX · 6 holders which blocks → T-MOBILE USA, INC. 6529 LKISABELLA CA
— 442-424 not yet reported which blocks → CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.