NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2013-03-14 650-666-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PALO ALTO CA
2013-03-14 650-673-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LA HONDA CA
2013-03-14 650-673-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LA HONDA CA
2013-03-14 650-718-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MOSS BEACH CA
2013-03-14 650-718-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MOSS BEACH CA
2013-03-14 650-732-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MILLBRAE CA
2013-03-14 650-732-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MILLBRAE CA
2013-03-14 650-934-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MT VIEW CA
2013-03-14 650-934-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F MT VIEW CA
2013-03-14 650-935-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LOS ALTOS CA
2013-03-14 650-935-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LOS ALTOS CA
2013-03-14 650-984-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PACIFICA CA
2013-03-14 650-984-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PACIFICA CA
2013-03-12 650-337-5XXX 5000–5999Assigned HD CARRIER LLC 321J PESCADERO CA
2013-03-12 650-337-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PESCADERO CA
2013-03-08 650-489-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNCRL-BLMT CA
2013-03-01 650-372-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J SAN MATEO CA
2013-03-01 650-537-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2013-02-28 650-372-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2013-02-19 650-526-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2013-02-01 650-777-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2013-01-24 650-271-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC JUNPR CA
2013-01-24 650-567-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2013-01-24 650-731-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC JUNPR CA
2013-01-24 650-731-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC JUNPR CA
2013-01-24 650-993-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC JUNPR CA
2013-01-23 650-600-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2013-01-23 650-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2013-01-21 650-554-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SAN MATEO CA
2013-01-16 650-826-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SSNFRNCSCO CA
2013-01-11 650-651-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L MILLBRAE CA
2013-01-08 650-314-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2013-01-08 650-314-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2012-12-27 650-861-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2012-12-14 650-600-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L PALO ALTO CA
2012-12-10 650-314-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MT VIEW CA
2012-12-05 650-210-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MT VIEW CA
2012-12-05 650-254-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C MT VIEW CA
2012-12-05 650-263-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C MOSS BEACH CA
2012-12-05 650-263-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C MOSS BEACH CA
2012-12-05 650-300-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-12-05 650-300-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-12-05 650-409-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2012-12-05 650-434-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2012-12-05 650-434-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C WOODSIDE CA
2012-12-05 650-490-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C MILLBRAE CA
2012-12-04 650-297-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C PESCADERO CA
2012-12-04 650-297-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C PESCADERO CA
2012-12-04 650-300-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PALO ALTO CA
2012-12-04 650-300-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PALO ALTO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.