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
2021-11-30 928-463-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PRESCOTT AZ
2021-11-30 928-641-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E SEDONA AZ
2021-11-30 928-732-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 LKHAVASUCY AZ
2021-11-30 928-821-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E SEDONA AZ
2021-11-23 928-371-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E MORMONLAKE AZ
2021-11-22 928-400-0XXX 0000–0999Assigned FRACTEL, LLC 965H WIKIEUP AZ
2021-11-20 928-430-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SOMERTON AZ
2021-11-19 928-450-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2021-11-16 928-416-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MEADVIEW AZ
2021-11-16 928-418-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KINGMAN AZ
2021-11-16 928-463-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PRESCOTT AZ
2021-11-15 928-812-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GLOBE AZ
2021-11-15 928-812-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H GLOBE AZ
2021-11-09 928-450-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BULLHEADCY AZ
2021-11-09 928-450-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E BULLHEADCY AZ
2021-11-09 928-933-3XXX 3000–3999Assigned FRACTEL, LLC 965H PINETOP AZ
2021-11-08 928-732-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2021-11-05 928-418-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2021-11-05 928-418-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2021-11-05 928-812-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E GLOBE AZ
2021-10-29 928-430-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 SOMERTON AZ
2021-10-26 928-215-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 CLIFTON AZ
2021-10-26 928-292-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 CLIFTON AZ
2021-10-25 928-732-5XXX 5000–5999Assigned FRACTEL, LLC 965H LKHAVASUCY AZ
2021-10-25 928-988-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 YUMA AZ
2021-10-25 928-988-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 YUMA AZ
2021-10-25 928-988-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 YUMA AZ
2021-10-22 928-391-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H KINGMAN AZ
2021-10-22 928-391-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H KINGMAN AZ
2021-10-22 928-450-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E BULLHEADCY AZ
2021-10-21 928-413-9XXX 9000–9999Assigned PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F PIMA AZ
2021-10-14 928-394-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BOUSE AZ
2021-10-14 928-394-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H BOUSE AZ
2021-10-14 928-859-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SALOME AZ
2021-10-14 928-859-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H SALOME AZ
2021-10-14 928-918-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HARQUHLVLY AZ
2021-10-14 928-923-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H EHRENBERG AZ
2021-10-14 928-923-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H EHRENBERG AZ
2021-10-11 928-463-9XXX 9000–9999Assigned METROPCS, INC. 5562 PRESCOTT AZ
2021-10-08 928-381-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GRANDCNYON AZ
2021-10-08 928-413-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PIMA AZ
2021-10-08 928-413-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PIMA AZ
2021-10-08 928-413-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PIMA AZ
2021-10-08 928-413-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PIMA AZ
2021-10-08 928-413-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PIMA AZ
2021-10-08 928-981-5XXX 5000–5999Assigned METROPCS, INC. 5562 FLAGSTAFF AZ
2021-10-01 928-450-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2021-09-28 928-365-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E GREENEHVN AZ
2021-09-28 928-461-2XXX 2000–2999Assigned NUSO, LLC 478J TUBA CITY AZ
2021-09-28 928-660-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E PAGE 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.