NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 618
NEW CINGULAR WIRELESS PCS, LLC - IL 2
EXIANT COMMUNICATIONS LLC 2
AHOI LLC 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
2014-07-01 618-857-0XXX 0000–0999Assigned METROPCS, INC. 5562 E ST LOUIS IL
2014-06-30 618-808-1XXX 1000–1999Assigned METROPCS, INC. 5562 LEBANON IL
2014-06-30 618-882-2XXX 2000–2999Assigned METROPCS, INC. 5562 HIGHLAND IL
2014-06-27 618-481-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRIGHTON IL
2014-06-24 618-414-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TROY IL
2014-06-19 618-366-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KASKASKIA IL
2014-06-19 618-661-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MCCLURE IL
2014-06-18 618-689-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SAILOR SPG IL
2014-06-18 618-690-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENVILLE IL
2014-06-18 618-710-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FREEBURG IL
2014-06-18 618-863-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CALHOUN IL
2014-06-18 618-912-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 BRIDGEPORT IL
2014-06-16 618-221-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREESE IL
2014-06-16 618-224-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRENTON IL
2014-06-16 618-227-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BECKEMEYER IL
2014-06-16 618-228-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J AVISTON IL
2014-06-16 618-266-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DIX IL
2014-06-16 618-323-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J IUKA IL
2014-06-16 618-367-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTRALIA IL
2014-06-16 618-391-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GLENCARBON IL
2014-06-16 618-464-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NASHVILLE IL
2014-06-16 618-479-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SALEM IL
2014-06-16 618-523-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GERMANTOWN IL
2014-06-16 618-547-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KINMUNDY IL
2014-06-16 618-582-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW ATHENS IL
2014-06-16 618-693-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BETHALTO IL
2014-06-16 618-732-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLUFORD IL
2014-06-16 618-803-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLLINSVL IL
2014-06-16 618-808-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LEBANON IL
2014-06-16 618-822-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KELL IL
2014-06-16 618-844-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CARLYLE IL
2014-06-13 618-878-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MT CARMEL IL
2014-05-23 618-380-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2014-05-22 618-297-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ELDORADO IL
2014-05-22 618-314-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NASHVILLE IL
2014-05-22 618-565-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MURPHYSBO IL
2014-05-22 618-707-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAWRENCEVL IL
2014-05-22 618-952-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JOHNSTONCY IL
2014-05-02 618-316-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MT VERNON IL
2014-04-29 618-609-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GRAYVILLE IL
2014-04-29 618-609-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GRAYVILLE IL
2014-04-23 618-269-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SHAWNEETN IL
2014-04-23 618-302-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALBION IL
2014-04-23 618-302-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 ALBION IL
2014-04-23 618-380-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARMI IL
2014-04-23 618-380-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARMI IL
2014-04-23 618-683-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GOLCONDA IL
2014-04-23 618-683-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GOLCONDA IL
2014-04-21 618-306-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAIRO IL
2014-04-21 618-306-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAIRO IL

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.