NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

4 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 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
2017-12-22 707-615-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C SANTA ROSA CA
2017-12-22 707-971-8XXX 8000–8999Assigned SONIC TELECOM, LLC - CA 433E PTLM MAIN CA
2017-12-19 707-729-2XXX 2000–2999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SANTA ROSA CA
2017-12-19 707-898-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C VACAVILLE CA
2017-12-19 707-898-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C VACAVILLE CA
2017-12-18 707-716-4XXX 4000–4999Assigned METROPCS, INC. 5562 FRFLD-SUIS CA
2017-12-12 707-608-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WINDSOR CA
2017-12-12 707-806-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-12-08 707-347-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L PTLM MAIN CA
2017-12-07 707-308-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-12-07 707-308-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-12-07 707-710-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-12-07 707-757-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-12-07 707-757-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-12-04 707-613-5XXX 5000–5999Assigned UNITED STATES CELLULAR - CA 6261 EUREKA CA
2017-11-30 707-729-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SANTA ROSA CA
2017-11-30 707-729-4XXX 4000–4999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SANTA ROSA CA
2017-11-30 707-729-5XXX 5000–5999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SANTA ROSA CA
2017-11-30 707-730-5XXX 5000–5999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 LAKEPORT CA
2017-11-29 707-661-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CALISTOGA CA
2017-11-28 707-286-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ST HELENA CA
2017-11-28 707-955-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HEALDSBURG CA
2017-11-13 707-898-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VACAVILLE CA
2017-11-08 707-732-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SONOMA CA
2017-11-03 707-210-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SONOMA CA
2017-11-03 707-729-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-11-03 707-729-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SANTA ROSA CA
2017-10-25 707-203-4XXX 4000–4999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 ELK CA
2017-10-25 707-458-6XXX 6000–6999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 CRESCENTCY CA
2017-10-04 707-281-6XXX 6000–6999Assigned MCC TELEPHONY LLC 593K KELSEYVL CA
2017-10-03 707-757-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTA ROSA CA
2017-09-22 707-683-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 EUREKA CA
2017-09-22 707-714-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 UKIAH CA
2017-09-22 707-716-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 FRFLD-SUIS CA
2017-09-21 707-366-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FRFLD-SUIS CA
2017-09-21 707-716-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FRFLD-SUIS CA
2017-09-20 707-209-9XXX 9000–9999Assigned METROPCS, INC. 5562 VALLEJO CA
2017-09-19 707-771-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BENICIA CA
2017-09-18 707-530-3XXX 3000–3999Assigned METROPCS, INC. 5562 LAKEPORT CA
2017-09-18 707-572-2XXX 2000–2999Assigned METROPCS, INC. 5562 EUREKA CA
2017-09-18 707-971-4XXX 4000–4999Assigned METROPCS, INC. 5562 PTLM MAIN CA
2017-09-12 707-305-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VACAVILLE CA
2017-09-11 707-600-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NICE CA
2017-08-29 707-339-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 YOUNTVILLE CA
2017-08-23 707-510-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 HOPLAND CA
2017-08-10 707-329-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEBASTOPOL CA
2017-08-10 707-630-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCATA CA
2017-08-10 707-836-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WINDSOR CA
2017-07-28 707-458-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CRESCENTCY CA
2017-07-28 707-530-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAKEPORT 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.