NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

34 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 442
NEW CINGULAR WIRELESS PCS, LLC 14
ONVOY, LLC - CA 10
HD CARRIER LLC 4
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2
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
2023-11-01 442-416-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN MARCOS CA
2023-11-01 442-416-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SAN MARCOS CA
2023-11-01 442-416-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SAN MARCOS CA
2023-10-30 442-542-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEEDLES CA
2023-10-17 442-766-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J INYOKERN CA
2023-10-16 442-412-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BRAWLEY CA
2023-10-16 442-429-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 YUCCA VLY CA
2023-10-16 442-430-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VISTA CA
2023-10-13 442-404-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VISTA CA
2023-10-12 442-822-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2023-10-12 442-822-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2023-10-12 442-822-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 INDIO CA
2023-10-04 442-414-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2023-10-04 442-414-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2023-10-04 442-419-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2023-10-04 442-419-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2023-10-04 442-419-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VICTORVL CA
2023-10-04 442-428-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-04 442-428-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C VTVL HSPR CA
2023-10-03 442-407-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PALM SPG CA
2023-10-03 442-407-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PALM SPG CA
2023-10-03 442-407-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PALM SPG CA
2023-10-03 442-409-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C CALEXICO CA
2023-10-03 442-409-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CALEXICO CA
2023-10-03 442-409-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C CALEXICO CA
2023-10-03 442-413-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ENCINITAS CA
2023-10-03 442-418-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PALMDESERT CA
2023-10-03 442-418-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PALMDESERT CA
2023-10-03 442-418-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PALMDESERT CA
2023-10-03 442-418-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H PALMDESERT CA
2023-10-03 442-418-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PALMDESERT CA
2023-09-29 442-426-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WRIGHTWOOD CA
2023-09-26 442-395-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-26 442-395-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALM SPG CA
2023-09-18 442-403-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C DSERTHTSPG CA

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.