NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 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, all time — NPA 707
CENTURYLINK COMMUNICATIONS, LLC 67
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
2016-05-11 707-229-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TMCV SERN CA
2015-11-30 707-842-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITETHORN CA
2015-02-17 707-336-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PETROLIA CA
2015-02-17 707-458-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRESCENTCY CA
2015-02-17 707-607-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FERNDALE CA
2014-12-31 707-313-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J UKIAH CA
2014-12-31 707-753-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PTLM SWIFT CA
2014-05-19 707-640-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DIXON CA
2014-05-14 707-355-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIDDLETOWN CA
2014-05-14 707-408-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KENWOOD CA
2014-05-14 707-504-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OCCIDENTAL CA
2014-05-14 707-530-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEPORT CA
2014-05-14 707-587-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KELSEYVL CA
2014-05-14 707-593-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MENDOCINO CA
2014-05-14 707-728-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUERNEVL CA
2014-05-14 707-739-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NICE CA
2014-05-14 707-744-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOPLAND CA
2014-05-14 707-865-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTE RIO CA
2014-05-14 707-882-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POINTARENA CA
2014-05-14 707-966-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LKBERRYESS CA
2014-05-13 707-312-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YOUNTVILLE CA
2014-05-13 707-379-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VALLEYFORD CA
2014-05-13 707-381-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GEYSERVL CA
2014-05-13 707-390-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PEPPERWOOD CA
2014-05-13 707-605-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POTTER VLY CA
2014-05-13 707-625-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FORESTVL CA
2014-05-13 707-659-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PIERCY CA
2014-05-13 707-663-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TMCV TMCV CA
2014-05-13 707-677-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRINIDAD CA
2014-05-13 707-783-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RIO DELL CA
2014-05-13 707-813-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FORT BRAGG CA
2014-05-13 707-868-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TOMALES CA
2014-05-13 707-884-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GUALALA CA
2014-05-13 707-949-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WEOTT CA
2014-05-12 707-368-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEGGETT CA
2014-05-12 707-574-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAD RIVER CA
2014-05-12 707-602-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MIRANDA CA
2014-05-12 707-617-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FORTUNA CA
2014-05-12 707-686-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOLETA CA
2014-05-12 707-851-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HYDESVILLE CA
2014-04-30 707-306-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ANNAPOLIS CA
2014-04-30 707-377-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BODEGA BAY CA
2014-04-30 707-560-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLERLAOAKS CA
2014-04-30 707-632-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAZADERO CA
2014-04-30 707-797-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRIDGEVL CA
2014-04-30 707-844-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUE LAKE CA
2014-04-30 707-877-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELK CA
2014-04-30 707-891-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLOVERDALE CA
2014-04-30 707-901-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BOONVILLE CA
2014-04-30 707-983-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COVELO 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.