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 909
ONVOY, LLC - CA 6
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
BANDWIDTH.COM CLEC, 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
2019-10-03 909-776-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-10-03 909-776-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-09-27 909-415-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 BIGBEAR LK CA
2019-09-26 909-712-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 REDLANDS CA
2019-09-25 909-769-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2019-09-25 909-769-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2019-09-23 909-768-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALIMESA CA
2019-09-03 909-788-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2019-08-26 909-507-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2019-08-26 909-507-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2019-08-26 909-513-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2019-08-26 909-513-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2019-08-26 909-513-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2019-08-26 909-739-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-26 909-739-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-26 909-739-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-26 909-739-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-26 909-739-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-26 909-739-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-26 909-977-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2019-08-15 909-254-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 COLTON CA
2019-08-13 909-719-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C UPLAND CA
2019-08-13 909-780-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C MARSHALL CA
2019-08-06 909-716-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 POMONA CA
2019-08-05 909-470-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ARROWHEAD CA
2019-08-05 909-719-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-05 909-719-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-05 909-719-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-05 909-719-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-05 909-719-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-05 909-719-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 UPLAND CA
2019-08-05 909-780-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2019-08-05 909-780-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARSHALL CA
2019-07-29 909-704-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2019-07-29 909-704-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ONTARIO CA
2019-07-29 909-716-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2019-07-29 909-716-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 POMONA CA
2019-07-16 909-288-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLAREMONT CA
2019-07-16 909-780-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2019-07-16 909-780-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARSHALL CA
2019-07-16 909-955-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RIALTO CA
2019-07-12 909-359-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HIGHLAND 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.