NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

25 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 820
ONVOY, LLC - CA 18
T-MOBILE USA, INC. 3
NEW CINGULAR WIRELESS PCS, LLC 2
TELNYX LLC 1
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 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
2021-08-18 820-336-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J GUADALUPE CA
2021-08-18 820-348-0XXX 0000–0999Assigned COMMIO, LLC 939H OXNARD CA
2021-08-18 820-348-1XXX 1000–1999Assigned COMMIO, LLC 939H OXNARD CA
2021-08-05 820-432-8XXX 8000–8999Assigned FRACTEL, LLC 965H NEWBURYPRK CA
2021-08-05 820-667-8XXX 8000–8999Assigned FRACTEL, LLC 965H OXNARD CA
2021-08-05 820-786-7XXX 7000–7999Assigned FRACTEL, LLC 965H ATASCADERO CA
2021-07-29 820-207-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-29 820-207-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-28 820-204-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-28 820-204-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-28 820-204-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-18 820-204-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-07-18 820-204-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-07-18 820-204-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-07-18 820-204-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2021-07-18 820-205-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C NEWBURYPRK CA
2021-07-18 820-280-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C LOS ALAMOS CA
2021-07-18 820-346-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ARROYOGRND CA
2021-07-18 820-346-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C ARROYOGRND CA
2021-07-18 820-900-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C BRADLEY CA
2021-07-16 820-206-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PASOROBLES CA
2021-07-16 820-842-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C OAKVIEW CA
2021-07-16 820-842-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C OAKVIEW CA
2021-07-06 820-600-8XXX 8000–8999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 PISMOBEACH CA
2021-07-01 820-204-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-01 820-204-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAMARILLO CA
2021-07-01 820-205-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-205-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWBURYPRK CA
2021-07-01 820-400-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PARKFIELD CA
2021-06-30 820-200-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2021-06-30 820-200-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2021-06-30 820-200-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2021-06-30 820-200-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C THOUSAOAKS CA
2021-06-30 820-280-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C LOS ALAMOS CA
2021-06-30 820-288-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C VNTRA EAST CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.