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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2009-02-06 650-720-3XXX 3000–3999Assigned METROPCS, INC. 5562 HALFMOONBY CA
2009-01-29 650-993-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2009-01-29 650-993-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2009-01-20 650-318-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2009-01-20 650-318-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MT VIEW CA
2008-12-29 650-758-8XXX 8000–8999Assigned METROPCS, INC. 5562 SNFC JUNPR CA
2008-12-29 650-898-4XXX 4000–4999Assigned METROPCS, INC. 5562 PACIFICA CA
2008-12-18 650-471-5XXX 5000–5999Assigned METROPCS, INC. 5562 LOS ALTOS CA
2008-12-18 650-690-4XXX 4000–4999Assigned METROPCS, INC. 5562 PALO ALTO CA
2008-12-17 650-453-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNCRL-BLMT CA
2008-12-17 650-469-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOS ALTOS CA
2008-12-17 650-530-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E WOODSIDE CA
2008-12-17 650-605-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW CA
2008-12-17 650-648-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MILLBRAE CA
2008-12-17 650-720-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HALFMOONBY CA
2008-12-17 650-898-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PACIFICA CA
2008-11-24 650-763-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SSNFRNCSCO CA
2008-11-21 650-458-1XXX 1000–1999Assigned METROPCS, INC. 5562 SAN MATEO CA
2008-11-20 650-212-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2008-11-20 650-477-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2008-11-20 650-477-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SAN MATEO CA
2008-11-20 650-550-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2008-11-20 650-731-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SNFC JUNPR CA
2008-11-13 650-209-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LOS ALTOS CA
2008-11-13 650-716-3XXX 3000–3999Assigned METROPCS, INC. 5562 REDWOOD CY CA
2008-11-13 650-754-3XXX 3000–3999Assigned METROPCS, INC. 5562 SSNFRNCSCO CA
2008-11-07 650-384-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PALO ALTO CA
2008-11-06 650-426-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MT VIEW CA
2008-11-05 650-993-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SNFC JUNPR CA
2008-10-22 650-395-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E REDWOOD CY CA
2008-10-22 650-450-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MT VIEW CA
2008-10-22 650-866-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SSNFRNCSCO CA
2008-10-22 650-918-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2008-10-22 650-918-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SAN MATEO CA
2008-10-22 650-924-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2008-10-22 650-924-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PALO ALTO CA
2008-10-20 650-241-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J REDWOOD CY CA
2008-10-20 650-314-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MT VIEW CA
2008-10-20 650-362-5XXX 5000–5999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 REDWOOD CY CA
2008-10-20 650-458-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SAN MATEO CA
2008-10-20 650-577-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SAN MATEO CA
2008-10-20 650-737-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SSNFRNCSCO CA
2008-10-20 650-847-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L PALO ALTO CA
2008-10-20 650-870-5XXX 5000–5999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SSNFRNCSCO CA
2008-10-20 650-879-5XXX 5000–5999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 PESCADERO CA
2008-10-06 650-597-1XXX 1000–1999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SNCRL-BLMT CA
2008-10-01 650-683-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C WOODSIDE CA
2008-09-30 650-676-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SSNFRNCSCO CA
2008-09-30 650-676-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO CA
2008-09-30 650-754-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SSNFRNCSCO 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.