NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 628
EXIANT COMMUNICATIONS LLC 3
ONVOY, LLC - CA 2
TELNYX LLC 1
OPENTACT INC. 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
2014-11-14 628-900-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-14 628-900-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-14 628-900-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-14 628-900-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-14 628-900-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-14 628-900-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-14 628-900-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-11-07 628-777-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SNFC MT-EV CA
2014-11-07 628-777-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFC MT-EV CA
2014-11-06 628-222-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-222-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-222-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-222-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-222-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-232-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E INVERNESS CA
2014-11-06 628-232-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E INVERNESS CA
2014-11-06 628-333-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-333-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-333-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-333-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-06 628-400-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFC CNTRL CA
2014-11-03 628-888-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SAN RAFAEL CA
2014-11-03 628-888-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SAN RAFAEL CA
2014-10-29 628-888-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN RAFAEL CA
2014-10-27 628-888-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN RAFAEL CA
2014-10-27 628-888-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN RAFAEL CA
2014-10-27 628-888-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN RAFAEL CA
2014-10-27 628-888-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN RAFAEL CA
2014-10-10 628-200-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2014-10-10 628-200-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2014-10-10 628-232-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F INVERNESS CA
2014-10-07 628-222-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-222-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-222-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-333-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-333-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-600-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-600-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-07 628-600-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFC CNTRL CA
2014-10-03 628-333-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-10-03 628-333-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNFC CNTRL CA
2014-10-03 628-800-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFC CNTRL 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.