NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-09-14 618-223-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLLINSVL IL
2004-09-14 618-307-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K EDWARDSVL IL
2004-09-14 618-505-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K TROY IL
2004-09-14 618-698-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2004-09-14 618-717-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BETHALTO IL
2004-09-09 618-339-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2004-09-09 618-339-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2004-09-09 618-339-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTRALIA IL
2004-09-01 618-416-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2004-08-31 618-317-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPARTA IL
2004-08-31 618-694-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MARION IL
2004-08-13 618-615-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHESTER IL
2004-08-04 618-740-0XXX 0000–0999Assigned WABASH INDEPENDENT NETWORKS, INC DBA WABASH COMM 772H SALEM IL
2004-07-13 618-698-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2004-06-22 618-205-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GLENCARBON IL
2004-06-22 618-384-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARMI IL
2004-06-22 618-475-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NEW ATHENS IL
2004-06-22 618-537-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LEBANON IL
2004-06-22 618-539-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FREEBURG IL
2004-06-22 618-887-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MARINE IL
2004-06-22 618-936-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SUMNER IL
2004-06-22 618-984-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROYALTON IL
2004-06-22 618-995-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GOREVILLE IL
2004-06-21 618-372-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BRIGHTON IL
2004-06-21 618-699-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 VANDALIA IL
2004-06-21 618-867-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DE SOTO IL
2004-06-17 618-331-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CARBONDALE IL
2004-06-08 618-494-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 JERSEYVL IL
2004-06-08 618-613-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BECKEMEYER IL
2004-06-08 618-679-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MCCLURE IL
2004-06-08 618-882-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HIGHLAND IL
2004-06-03 618-272-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 RIDGWAY IL
2004-06-03 618-297-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELDORADO IL
2004-06-03 618-309-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 METROPOLIS IL
2004-06-03 618-342-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 VILLARIDGE IL
2004-06-03 618-614-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ANNA IL
2004-06-03 618-615-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CHESTER IL
2004-06-03 618-634-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 KARNAK IL
2004-06-03 618-657-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CYPRESS IL
2004-06-03 618-663-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BENTON IL
2004-06-03 618-674-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CARRIERSML IL
2004-06-03 618-708-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SPARTA IL
2004-06-03 618-712-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 THEBES IL
2004-06-03 618-771-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 VIENNA IL
2004-06-03 618-790-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DU QUOIN IL
2004-06-03 618-845-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ULLIN IL
2004-06-03 618-891-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 TAMMS IL
2004-05-18 618-445-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ALBION IL
2004-04-28 618-381-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 COLLINSVL IL
2004-04-08 618-717-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BETHALTO IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.