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
2012-12-04 650-486-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNCRL-BLMT CA
2012-12-04 650-486-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SNCRL-BLMT CA
2012-12-04 650-487-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LA HONDA CA
2012-12-04 650-487-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C LA HONDA CA
2012-12-04 650-487-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LA HONDA CA
2012-12-04 650-534-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2012-12-04 650-534-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2012-12-04 650-729-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C HALFMOONBY CA
2012-12-04 650-729-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C HALFMOONBY CA
2012-12-04 650-839-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C REDWOOD CY CA
2012-12-04 650-839-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C REDWOOD CY CA
2012-12-04 650-839-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C REDWOOD CY CA
2012-12-04 650-900-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LOS ALTOS CA
2012-12-04 650-900-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C LOS ALTOS CA
2012-12-04 650-984-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PACIFICA CA
2012-12-04 650-984-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PACIFICA CA
2012-12-04 650-984-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C PACIFICA CA
2012-11-29 650-389-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SAN MATEO CA
2012-11-28 650-300-6XXX 6000–6999Assigned SONIC TELECOM, LLC - CA 433E PALO ALTO CA
2012-11-28 650-530-5XXX 5000–5999Assigned SONIC TELECOM, LLC - CA 433E WOODSIDE CA
2012-11-28 650-564-5XXX 5000–5999Assigned SONIC TELECOM, LLC - CA 433E MT VIEW CA
2012-11-28 650-581-0XXX 0000–0999Assigned SONIC TELECOM, LLC - CA 433E SAN MATEO CA
2012-11-28 650-597-5XXX 5000–5999Assigned SONIC TELECOM, LLC - CA 433E SNCRL-BLMT CA
2012-11-28 650-679-6XXX 6000–6999Assigned SONIC TELECOM, LLC - CA 433E REDWOOD CY CA
2012-11-28 650-684-6XXX 6000–6999Assigned SONIC TELECOM, LLC - CA 433E MILLBRAE CA
2012-11-28 650-869-9XXX 9000–9999Assigned SONIC TELECOM, LLC - CA 433E SSNFRNCSCO CA
2012-11-28 650-887-8XXX 8000–8999Assigned SONIC TELECOM, LLC - CA 433E LOS ALTOS CA
2012-11-26 650-300-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PALO ALTO CA
2012-11-20 650-784-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J SSNFRNCSCO CA
2012-11-19 650-426-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2012-11-19 650-426-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2012-11-12 650-889-3XXX 3000–3999Assigned SONIC TELECOM, LLC - CA 433E HALFMOONBY CA
2012-11-08 650-263-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MOSS BEACH CA
2012-10-30 650-332-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2012-10-30 650-434-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2012-10-30 650-735-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PACIFICA CA
2012-10-30 650-898-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PACIFICA CA
2012-10-24 650-300-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PALO ALTO CA
2012-10-24 650-645-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SAN MATEO CA
2012-10-16 650-263-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MOSS BEACH CA
2012-10-16 650-696-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SAN MATEO CA
2012-10-16 650-946-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LOS ALTOS CA
2012-10-05 650-567-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2012-10-03 650-731-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2012-10-03 650-731-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2012-10-01 650-878-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SSNFRNCSCO CA
2012-09-26 650-960-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2012-09-21 650-966-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW CA
2012-09-21 650-966-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW CA
2012-09-21 650-966-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW 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.