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
2021-06-24 608-502 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - WI 225C EVANSVILLE WI
2021-06-24 765-638 1XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → ONVOY, LLC - IN 097D WAVELAND IN
2021-06-24 765-685 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - IN 097D YORKTOWN IN
2021-06-24 779-337 0XXX3XXX7XXX9XXX · 4 holders which blocks → ONVOY, LLC 224C WOODLAND IL
2021-06-24 779-338 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → ONVOY, LLC 224C CRESCENTCY IL
2021-06-24 908-708 0–9 XXXall 10 · 4 holders which blocks → METROPCS, INC. 5562 LINDEN NJ
2021-06-24 912-593 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BRUNSWICK GA
2021-06-24 930-245 0XXX2XXX5XXX6XXX · 3 holders which blocks → TWILIO INTERNATIONAL, INC. 506J LOOGOOTEE IN
2021-06-24 930-247 0XXX2XXX7XXX · 2 holders which blocks → ONVOY, LLC - IN 097D LANESVILLE IN
2021-06-24 930-248 0XXX2XXX3XXX4XXX5XXX8XXX · 4 holders which blocks → ONVOY, LLC - IN 097D SCIPIO IN
2021-06-24 959-225 0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → ONVOY, LLC - CT 639C NEWBRITAIN CT
2021-06-24 959-232 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC - CT 639C WILLIMNTIC CT
2021-06-23 209-884 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MANTECA CA
2021-06-23 209-913 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TURLOCK CA
2021-06-23 216-412 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - OH 464C CLEVELAND OH
2021-06-23 234-296 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H KENT OH
2021-06-23 236-460 not yet reported which blocks → TELUS 8086 Aldergrove —
2021-06-23 239-439 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C CAPE CORAL FL
2021-06-23 251-358 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-06-23 256-903 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CULLMAN AL
2021-06-23 260-283 0XXX which blocks → TELNYX LLC 073H GENEVA IN
2021-06-23 262-318 1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → ONVOY, LLC - WI 225C NORTH LAKE WI
2021-06-23 309-882 0XXX7XXX · 2 holders which blocks → TELNYX LLC 073H CANTON IL
2021-06-23 316-392 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → VONAGE AMERICA LLC 197D ANDALE KS
2021-06-23 316-394 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → ONVOY, LLC - KS 205F BENTON KS
2021-06-23 316-396 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - KS 205F HALSTEAD KS
2021-06-23 319-619 0XXX1XXX2XXX4XXX6XXX9XXX · 5 holders which blocks → METROPCS, INC. 5562 MONTROSE IA
2021-06-23 352-899 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → FRACTEL, LLC 965H CEDAR KEYS FL
2021-06-23 440-741 0–9 XXXall 10 · 5 holders which blocks → TELNYX LLC 073H VICTORY OH
2021-06-23 442-451 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks → TELNYX LLC 073H YUCCA VLY CA
2021-06-23 458-267 0XXX3XXX4XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OR 3234 POWERS OR
2021-06-23 458-268 0XXX3XXX7XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - OR 3234 COQUILLE OR
2021-06-23 458-457 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → ONVOY SPECTRUM, LLC 624H NYSSA OR
2021-06-23 470-818 0–9 XXXwhole prefix which blocks → POWERTEL ATLANTA LICENSES, INC. 7473 WINDER GA
2021-06-23 475-286 0–9 XXXall 10 · 4 holders which blocks → TELNYX LLC 073H BRANFORD CT
2021-06-23 479-446 0XXX1XXX2XXX4XXX6XXX7XXX · 4 holders which blocks → ONVOY, LLC - AR 348F MOUNTAINBG AR
2021-06-23 479-454 2XXX4XXX5XXX · 3 holders which blocks → ONVOY, LLC - AR 348F CENTERVL AR
2021-06-23 501-468 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 6 holders which blocks → ONVOY, LLC - AR 348F CLEVELAND AR
2021-06-23 501-484 0–9 XXXall 10 · 6 holders which blocks → ONVOY, LLC - AR 348F SPRINGLAKE AR
2021-06-23 501-493 0XXX1XXX2XXX3XXX4XXX · 3 holders which blocks → ONVOY, LLC - AR 348F CRYSTALSPG AR
2021-06-23 501-494 0–9 XXXall 10 · 7 holders which blocks → ONVOY, LLC - AR 348F JESSIEVL AR
2021-06-23 501-495 0XXX1XXX2XXX3XXX5XXX · 3 holders which blocks → ONVOY, LLC - AR 348F LONSDALE AR
2021-06-23 505-483 0–9 XXXall 10 · 4 holders which blocks → BANDWIDTH.COM CLEC, LLC - NM 123F AZTEC NM
2021-06-23 517-514 0XXX1XXX2XXX4XXX5XXX8XXX9XXX · 4 holders which blocks → METROPCS, INC. 5562 CLINTON MI
2021-06-23 531-322 0XXX2XXX3XXX4XXX · 2 holders which blocks → ONVOY, LLC - NE 549E CERESCO NE
2021-06-23 539-249 0–9 XXXall 10 · 6 holders which blocks → TELNYX LLC 073H SALLISAW OK
2021-06-23 551-322 0–9 XXXall 10 · 6 holders which blocks → VONAGE AMERICA LLC 197D TEANECK NJ
2021-06-23 559-609 0XXX7XXX · 2 holders which blocks → TELNYX LLC 073H STRATFORD CA
2021-06-23 605-522 0XXX1XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → METROPCS, INC. 5562 YANKTON SD
2021-06-23 605-616 0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 2 holders which blocks → ONVOY SPECTRUM, LLC 624H CANTON SD

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.