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
2015-02-04 618-501-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2015-01-08 618-340-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2014-11-25 618-619-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ALTON IL
2014-11-14 618-715-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISBURG IL
2014-11-12 618-802-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2014-11-12 618-802-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2014-11-05 618-560-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2014-11-05 618-789-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COLLINSVL IL
2014-10-24 618-641-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BELLEVILLE IL
2014-10-23 618-556-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JERSEYVL IL
2014-10-22 618-202-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ANNA IL
2014-10-20 618-746-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2014-10-20 618-746-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2014-10-20 618-746-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2014-10-20 618-746-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2014-10-20 618-746-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BELLEVILLE IL
2014-10-08 618-969-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MARION IL
2014-10-08 618-969-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MARION IL
2014-10-02 618-661-6XXX 6000–6999Assigned METROPCS, INC. 5562 MCCLURE IL
2014-09-26 618-263-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MT CARMEL IL
2014-09-26 618-560-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 COLLINSVL IL
2014-09-26 618-690-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GREENVILLE IL
2014-09-25 618-320-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 OLNEY IL
2014-09-08 618-290-0XXX 0000–0999Assigned SHAWNEELEC, INC. 458H ROSICLARE IL
2014-09-08 618-802-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2014-09-08 618-802-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2014-09-08 618-802-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2014-09-08 618-802-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GRANITE CY IL
2014-09-04 618-802-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2014-08-21 618-205-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 GLENCARBON IL
2014-08-20 618-203-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CARBONDALE IL
2014-08-20 618-434-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CARBONDALE IL
2014-08-20 618-434-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CARBONDALE IL
2014-08-12 618-294-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 HARRISBURG IL
2014-08-07 618-554-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ROBINSON IL
2014-07-31 618-664-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J GREENVILLE IL
2014-07-11 618-323-4XXX 4000–4999Assigned WABASH INDEPENDENT NETWORKS, INC DBA WABASH COMM 772H IUKA IL
2014-07-09 618-515-0XXX 0000–0999Assigned METROPCS, INC. 5562 E ST LOUIS IL
2014-07-09 618-701-0XXX 0000–0999Assigned METROPCS, INC. 5562 HIGHLAND IL
2014-07-09 618-702-0XXX 0000–0999Assigned METROPCS, INC. 5562 LEBANON IL
2014-07-01 618-208-9XXX 9000–9999Assigned METROPCS, INC. 5562 ALTON IL
2014-07-01 618-332-9XXX 9000–9999Assigned METROPCS, INC. 5562 E ST LOUIS IL
2014-07-01 618-414-0XXX 0000–0999Assigned METROPCS, INC. 5562 TROY IL
2014-07-01 618-448-1XXX 1000–1999Assigned METROPCS, INC. 5562 MASCOUTAH IL
2014-07-01 618-467-9XXX 9000–9999Assigned METROPCS, INC. 5562 ALTON IL
2014-07-01 618-468-9XXX 9000–9999Assigned METROPCS, INC. 5562 ALTON IL
2014-07-01 618-538-2XXX 2000–2999Assigned METROPCS, INC. 5562 WESTVIEW IL
2014-07-01 618-601-2XXX 2000–2999Assigned METROPCS, INC. 5562 DUPO IL
2014-07-01 618-767-0XXX 0000–0999Assigned METROPCS, INC. 5562 BELLEVILLE IL
2014-07-01 618-767-1XXX 1000–1999Assigned METROPCS, INC. 5562 BELLEVILLE 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.