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
2020-12-17 928-364-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E BLUE RIDGE AZ
2020-12-17 928-364-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E BLUE RIDGE AZ
2020-12-17 928-378-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E ROOSEVLTLK AZ
2020-12-17 928-378-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E ROOSEVLTLK AZ
2020-12-17 928-378-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E ROOSEVLTLK AZ
2020-12-17 928-378-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E ROOSEVLTLK AZ
2020-12-17 928-455-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E PEACH SPG AZ
2020-12-17 928-455-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E PEACH SPG AZ
2020-12-17 928-455-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E PEACH SPG AZ
2020-12-17 928-588-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E WICKENBURG AZ
2020-12-17 928-588-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E WICKENBURG AZ
2020-12-17 928-588-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E WICKENBURG AZ
2020-12-17 928-588-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E WICKENBURG AZ
2020-12-17 928-842-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E PARKER AZ
2020-12-17 928-842-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PARKER AZ
2020-12-17 928-842-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E PARKER AZ
2020-12-17 928-851-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E BOUSE AZ
2020-12-17 928-877-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PARKER DAM AZ
2020-12-17 928-877-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E PARKER DAM AZ
2020-12-17 928-877-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E PARKER DAM AZ
2020-12-17 928-888-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E GRANDCNYON AZ
2020-12-17 928-927-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E QUARTZSITE AZ
2020-12-17 928-927-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E QUARTZSITE AZ
2020-12-17 928-929-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E GILA BEND AZ
2020-12-17 928-929-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E GILA BEND AZ
2020-12-17 928-929-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E GILA BEND AZ
2020-12-17 928-938-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E HYDER AZ
2020-12-17 928-938-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E HYDER AZ
2020-12-17 928-938-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E HYDER AZ
2020-12-17 928-938-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E HYDER AZ
2020-12-14 928-538-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2020-12-14 928-538-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BULLHEADCY AZ
2020-12-09 928-398-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E SOMERTON AZ
2020-12-09 928-398-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E SOMERTON AZ
2020-12-09 928-889-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E LKHAVASUCY AZ
2020-12-09 928-889-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E LKHAVASUCY AZ
2020-12-09 928-981-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E FLAGSTAFF AZ
2020-12-09 928-981-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E FLAGSTAFF AZ
2020-12-07 928-356-3XXX 3000–3999Assigned TELNYX LLC 073H PRESCOTT AZ
2020-12-07 928-361-8XXX 8000–8999Assigned PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F PIMA AZ
2020-12-04 928-392-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E LKHAVASUCY AZ
2020-12-04 928-392-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E LKHAVASUCY AZ
2020-12-04 928-399-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEDONA AZ
2020-12-04 928-628-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2020-12-04 928-628-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2020-12-04 928-628-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2020-12-04 928-628-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2020-12-04 928-628-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E KINGMAN AZ
2020-12-04 928-666-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E FLAGSTAFF AZ
2020-12-04 928-862-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E SEDONA 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.