NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 928
INTRADO COMMUNICATIONS, LLC 3
CSC WIRELESS, LLC 2
AHOI LLC 2
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 1
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-06-11 928-404-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E BULLHDCYN AZ
2019-06-11 928-564-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E MEADVIEW AZ
2019-06-11 928-564-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E MEADVIEW AZ
2019-06-11 928-655-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E SOMERTON AZ
2019-06-11 928-666-9XXX 9000–9999Assigned PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F FLAGSTAFF AZ
2019-06-11 928-754-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E BULLHDCYN AZ
2019-06-11 928-764-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E CASTLEROCK AZ
2019-06-11 928-766-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E YUCCA AZ
2019-06-11 928-769-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E PEACH SPG AZ
2019-06-11 928-770-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E MOHAVE VLY AZ
2019-06-07 928-419-0XXX 0000–0999Assigned SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA 4146 FLAGSTAFF AZ
2019-06-06 928-264-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J EHRENBERG AZ
2019-06-06 928-264-3XXX 3000–3999Assigned CSC WIRELESS, LLC 425J EHRENBERG AZ
2019-06-03 928-249-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 LKMHVRNCHS AZ
2019-06-03 928-800-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PRESCOTT AZ
2019-05-29 928-352-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2019-05-29 928-352-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2019-05-22 928-706-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E LKHAVASUCY AZ
2019-05-22 928-706-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E LKHAVASUCY AZ
2019-05-08 928-250-7XXX 7000–7999Assigned TELNYX LLC 073H SAFFORD AZ
2019-05-08 928-267-1XXX 1000–1999Assigned TELNYX LLC 073H PAYSON AZ
2019-05-08 928-655-8XXX 8000–8999Assigned TELNYX LLC 073H SOMERTON AZ
2019-04-25 928-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 FLAGSTAFF AZ
2019-04-22 928-476-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AZ 587F PAYSON AZ
2019-04-17 928-666-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 FLAGSTAFF AZ
2019-04-11 928-543-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E WICKENBURG AZ
2019-04-10 928-882-3XXX 3000–3999Assigned PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F WINSLOW AZ
2019-03-28 928-419-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J FLAGSTAFF AZ
2019-03-14 928-296-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 BULLHEADCY AZ
2019-03-11 928-666-7XXX 7000–7999Assigned VOIP INNOVATIONS, LLC 597F FLAGSTAFF AZ
2019-02-21 928-500-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J AGUILA AZ
2019-02-20 928-249-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 LKMHVRNCHS AZ
2019-02-20 928-327-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PRESCOTT AZ
2019-02-20 928-565-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KINGMAN AZ
2019-02-18 928-264-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E EHRENBERG AZ
2019-02-18 928-296-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E BULLHEADCY AZ
2019-02-18 928-296-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E BULLHEADCY AZ
2019-02-13 928-294-7XXX 7000–7999Assigned METROPCS, INC. 5562 YUMA AZ
2019-02-05 928-233-1XXX 1000–1999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2019-01-31 928-327-8XXX 8000–8999Assigned METROPCS, INC. 5562 PRESCOTT AZ
2019-01-28 928-666-6XXX 6000–6999Assigned FRACTEL, LLC 965H FLAGSTAFF AZ
2019-01-17 928-294-0XXX 0000–0999Assigned METROPCS, INC. 5562 YUMA AZ
2019-01-17 928-988-8XXX 8000–8999Assigned VOIP INNOVATIONS, LLC 597F YUMA AZ
2019-01-11 928-327-5XXX 5000–5999Assigned VOIP INNOVATIONS, LLC 597F PRESCOTT AZ
2019-01-10 928-612-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PAGE AZ
2019-01-09 928-250-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAFFORD AZ
2018-12-19 928-900-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E GLOBE AZ
2018-12-13 928-655-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SOMERTON AZ
2018-12-04 928-327-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D PRESCOTT AZ
2018-12-04 928-327-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D PRESCOTT AZ

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.