NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 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 707
ONVOY, LLC - CA 6
NEW CINGULAR WIRELESS PCS, LLC 1
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - CA 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
2005-10-18 707-206-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2005-10-18 707-206-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2005-10-18 707-236-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2005-10-13 707-704-0XXX 0000–0999Assigned METROPCS, INC. 5562 VALLEJO CA
2005-10-12 707-384-7XXX 7000–7999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2005-10-12 707-384-8XXX 8000–8999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2005-10-12 707-384-9XXX 9000–9999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2005-10-12 707-430-6XXX 6000–6999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2005-10-12 707-430-8XXX 8000–8999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2005-10-12 707-980-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VALLEJO CA
2005-10-11 707-359-8XXX 8000–8999Assigned METROPCS, INC. 5562 VACAVILLE CA
2005-10-11 707-359-9XXX 9000–9999Assigned METROPCS, INC. 5562 VACAVILLE CA
2005-10-10 707-593-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C MENDOCINO CA
2005-10-07 707-240-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C MAD RIVER CA
2005-10-07 707-286-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ST HELENA CA
2005-10-07 707-348-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C UPPER LAKE CA
2005-10-07 707-986-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C WHITETHORN CA
2005-10-03 707-207-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FRFLD-SUIS CA
2005-10-03 707-207-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FRFLD-SUIS CA
2005-10-03 707-635-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 DIXON CA
2005-10-03 707-820-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FORESTVL CA
2005-09-23 707-256-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NAPA CA
2005-09-23 707-570-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-09-23 707-570-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-09-23 707-570-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-09-23 707-570-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-09-20 707-514-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2005-09-19 707-234-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UKIAH CA
2005-09-14 707-227-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2005-09-14 707-227-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2005-09-14 707-338-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PTLM MAIN CA
2005-08-26 707-832-2XXX 2000–2999Assigned METROPCS, INC. 5562 EUREKA CA
2005-08-23 707-634-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7145 SEBASTOPOL CA
2005-08-17 707-207-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L FRFLD-SUIS CA
2005-08-17 707-294-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L NAPA CA
2005-08-17 707-297-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L BENICIA CA
2005-08-17 707-341-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CALISTOGA CA
2005-08-17 707-343-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SONOMA CA
2005-08-17 707-359-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VACAVILLE CA
2005-08-11 707-386-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2005-08-11 707-395-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J HEALDSBURG CA
2005-08-04 707-731-0XXX 0000–0999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VALLEJO CA
2005-07-26 707-540-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-540-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-591-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-591-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-591-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-591-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-591-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2005-07-26 707-739-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NICE 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.