NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 805
CENTURYLINK COMMUNICATIONS, LLC 30
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
2017-07-31 805-869-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANBARBARA CA
2017-01-06 805-825-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ARROYOGRND CA
2017-01-05 805-257-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PASOROBLES CA
2017-01-05 805-321-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANMARGART CA
2017-01-05 805-703-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATASCADERO CA
2017-01-05 805-723-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NIPOMO CA
2017-01-05 805-725-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARRISA PL CA
2017-01-05 805-776-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MORRO BAY CA
2017-01-05 805-779-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PISMOBEACH CA
2017-01-05 805-912-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRADLEY CA
2017-01-05 805-935-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAMBRIA CA
2016-08-26 805-821-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SNLUSOBSPO CA
2014-06-16 805-275-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VNTRA CNTL CA
2014-06-16 805-420-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANTAPAULA CA
2014-06-16 805-491-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CONEJO CA
2014-06-16 805-625-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FILLMORE CA
2014-06-16 805-678-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POINT MUGU CA
2014-06-16 805-768-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWBURYPRK CA
2014-06-16 805-954-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SATICOY CA
2014-06-04 805-398-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PIRU CA
2014-06-04 805-664-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OAKVIEW CA
2014-06-04 805-836-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OJAI CA
2014-06-02 805-301-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOMIS CA
2014-03-14 805-719-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J THOUSAOAKS CA
2013-12-10 805-387-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SIMIVALLEY CA
2013-10-31 805-666-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VNTRA EAST CA
2013-01-30 805-394-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OXNARD CA
2013-01-29 805-876-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MOORPARK CA
2013-01-29 805-914-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAMARILLO CA
2013-01-29 805-919-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EL RIO 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.