NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 650
ONVOY, LLC - CA 11
T-MOBILE USA, INC. 4
BANDWIDTH.COM CLEC, LLC - 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
2010-08-09 650-560-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HALFMOONBY CA
2010-08-09 650-560-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HALFMOONBY CA
2010-08-09 650-560-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HALFMOONBY CA
2010-08-06 650-288-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN MATEO CA
2010-08-06 650-417-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2010-08-06 650-471-3XXX 3000–3999Assigned METROPCS, INC. 5562 LOS ALTOS CA
2010-08-06 650-898-5XXX 5000–5999Assigned METROPCS, INC. 5562 PACIFICA CA
2010-08-03 650-262-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PESCADERO CA
2010-08-03 650-263-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MOSS BEACH CA
2010-08-03 650-275-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2010-08-03 650-451-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PACIFICA CA
2010-08-02 650-229-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOS ALTOS CA
2010-08-02 650-419-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LA HONDA CA
2010-08-02 650-440-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HALFMOONBY CA
2010-07-26 650-453-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SNCRL-BLMT CA
2010-07-22 650-843-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2010-07-16 650-239-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MILLBRAE CA
2010-07-16 650-264-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNCRL-BLMT CA
2010-07-16 650-391-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2010-07-16 650-391-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2010-07-16 650-453-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNCRL-BLMT CA
2010-07-08 650-479-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F HALFMOONBY CA
2010-07-01 650-630-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2010-06-29 650-492-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOS ALTOS CA
2010-06-29 650-863-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2010-06-24 650-249-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F REDWOOD CY CA
2010-06-24 650-754-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SSNFRNCSCO CA
2010-06-15 650-526-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VIEW CA
2010-06-15 650-539-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2010-06-14 650-485-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2010-06-14 650-556-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDWOOD CY CA
2010-06-14 650-556-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDWOOD CY CA
2010-06-14 650-681-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2010-06-04 650-213-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PALO ALTO CA
2010-06-04 650-339-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNCRL-BLMT CA
2010-06-04 650-539-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SAN MATEO CA
2010-06-03 650-385-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDWOOD CY CA
2010-06-03 650-477-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN MATEO CA
2010-06-03 650-477-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN MATEO CA
2010-06-03 650-603-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW CA
2010-06-03 650-652-8XXX 8000–8999Assigned PACIFIC BELL 9740 MILLBRAE CA
2010-06-03 650-741-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2010-06-03 650-918-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2010-06-03 650-918-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2010-06-03 650-924-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2010-06-01 650-584-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L MT VIEW CA
2010-06-01 650-681-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALO ALTO CA
2010-05-14 650-763-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SSNFRNCSCO CA
2010-05-10 650-539-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SAN MATEO CA
2010-05-05 650-443-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MILLBRAE 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.