NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

4 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 707
ONVOY, LLC - CA 2
NEW CINGULAR WIRELESS PCS, 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
2013-11-04 707-798-2XXX 2000–2999Assigned CSC VOICE, LLC 612K EUREKA CA
2013-11-04 707-798-3XXX 3000–3999Assigned CSC VOICE, LLC 612K EUREKA CA
2013-11-04 707-798-4XXX 4000–4999Assigned CSC VOICE, LLC 612K EUREKA CA
2013-11-04 707-798-5XXX 5000–5999Assigned CSC VOICE, LLC 612K EUREKA CA
2013-11-04 707-798-6XXX 6000–6999Assigned CSC VOICE, LLC 612K EUREKA CA
2013-11-01 707-379-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VALLEYFORD CA
2013-11-01 707-379-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C VALLEYFORD CA
2013-10-31 707-306-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C ANNAPOLIS CA
2013-10-31 707-306-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C ANNAPOLIS CA
2013-10-31 707-625-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C FORESTVL CA
2013-10-31 707-625-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C FORESTVL CA
2013-10-31 707-771-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C BENICIA CA
2013-10-31 707-771-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C BENICIA CA
2013-10-30 707-709-7XXX 7000–7999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 CALISTOGA CA
2013-10-22 707-460-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CRESCENTCY CA
2013-10-22 707-487-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SMITHRIVER CA
2013-10-17 707-329-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SEBASTOPOL CA
2013-10-17 707-532-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LOLETA CA
2013-10-17 707-583-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SANTA ROSA CA
2013-10-17 707-596-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SANTA ROSA CA
2013-10-17 707-709-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CALISTOGA CA
2013-10-14 707-530-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAKEPORT CA
2013-10-09 707-387-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2013-10-09 707-387-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2013-10-09 707-396-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2013-10-09 707-492-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2013-10-09 707-492-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2013-10-09 707-617-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FORTUNA CA
2013-10-09 707-639-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FRFLD-SUIS CA
2013-10-09 707-755-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2013-10-09 707-755-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2013-10-09 707-800-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA ROSA CA
2013-09-20 707-755-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANTA ROSA CA
2013-09-19 707-492-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L NAPA CA
2013-09-13 707-752-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BENICIA CA
2013-09-10 707-934-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SONOMA CA
2013-09-09 707-653-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L VALLEJO CA
2013-09-09 707-755-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ROSA CA
2013-09-05 707-800-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2013-08-30 707-389-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 FRFLD-SUIS CA
2013-08-29 707-296-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2013-08-29 707-298-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2013-08-29 707-298-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EUREKA CA
2013-08-23 707-390-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C PEPPERWOOD CA
2013-08-14 707-558-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VALLEJO CA
2013-08-09 707-501-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NAPA CA
2013-07-25 707-595-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ROSA CA
2013-07-25 707-657-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WINDSOR CA
2013-07-23 707-389-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L FRFLD-SUIS CA
2013-07-10 707-389-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FRFLD-SUIS 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.