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
2016-08-22 618-726-8XXX 8000–8999Assigned ONVOY, LLC 224C O FALLON IL
2016-08-22 618-726-9XXX 9000–9999Assigned ONVOY, LLC 224C O FALLON IL
2016-08-22 618-740-3XXX 3000–3999Assigned ONVOY, LLC 224C SALEM IL
2016-08-22 618-740-6XXX 6000–6999Assigned ONVOY, LLC 224C SALEM IL
2016-08-22 618-816-0XXX 0000–0999Assigned ONVOY, LLC 224C MT VERNON IL
2016-08-22 618-816-7XXX 7000–7999Assigned ONVOY, LLC 224C MT VERNON IL
2016-08-22 618-822-2XXX 2000–2999Assigned ONVOY, LLC 224C KELL IL
2016-08-22 618-822-3XXX 3000–3999Assigned ONVOY, LLC 224C KELL IL
2016-08-19 618-221-4XXX 4000–4999Assigned ONVOY, LLC 224C BREESE IL
2016-08-19 618-221-5XXX 5000–5999Assigned ONVOY, LLC 224C BREESE IL
2016-08-19 618-227-7XXX 7000–7999Assigned ONVOY, LLC 224C BECKEMEYER IL
2016-08-19 618-227-9XXX 9000–9999Assigned ONVOY, LLC 224C BECKEMEYER IL
2016-08-19 618-230-4XXX 4000–4999Assigned ONVOY, LLC 224C EDGEMONT IL
2016-08-19 618-230-5XXX 5000–5999Assigned ONVOY, LLC 224C EDGEMONT IL
2016-08-19 618-266-2XXX 2000–2999Assigned ONVOY, LLC 224C DIX IL
2016-08-19 618-266-3XXX 3000–3999Assigned ONVOY, LLC 224C DIX IL
2016-08-19 618-360-4XXX 4000–4999Assigned ONVOY, LLC 224C HARMONY IL
2016-08-19 618-360-5XXX 5000–5999Assigned ONVOY, LLC 224C HARMONY IL
2016-08-19 618-440-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MARION IL
2016-08-19 618-481-4XXX 4000–4999Assigned ONVOY, LLC 224C BRIGHTON IL
2016-08-19 618-481-5XXX 5000–5999Assigned ONVOY, LLC 224C BRIGHTON IL
2016-08-19 618-523-7XXX 7000–7999Assigned ONVOY, LLC 224C GERMANTOWN IL
2016-08-19 618-523-9XXX 9000–9999Assigned ONVOY, LLC 224C GERMANTOWN IL
2016-08-19 618-545-7XXX 7000–7999Assigned ONVOY, LLC 224C CENTRALIA IL
2016-08-19 618-545-8XXX 8000–8999Assigned ONVOY, LLC 224C CENTRALIA IL
2016-08-19 618-574-1XXX 1000–1999Assigned ONVOY, LLC 224C AVISTON IL
2016-08-19 618-574-2XXX 2000–2999Assigned ONVOY, LLC 224C AVISTON IL
2016-08-19 618-619-6XXX 6000–6999Assigned ONVOY, LLC 224C ALTON IL
2016-08-19 618-619-7XXX 7000–7999Assigned ONVOY, LLC 224C ALTON IL
2016-08-19 618-693-4XXX 4000–4999Assigned ONVOY, LLC 224C BETHALTO IL
2016-08-19 618-693-5XXX 5000–5999Assigned ONVOY, LLC 224C BETHALTO IL
2016-08-19 618-703-1XXX 1000–1999Assigned ONVOY, LLC 224C GREENVILLE IL
2016-08-19 618-703-4XXX 4000–4999Assigned ONVOY, LLC 224C GREENVILLE IL
2016-08-19 618-710-2XXX 2000–2999Assigned ONVOY, LLC 224C FREEBURG IL
2016-08-19 618-710-3XXX 3000–3999Assigned ONVOY, LLC 224C FREEBURG IL
2016-08-19 618-732-3XXX 3000–3999Assigned ONVOY, LLC 224C BLUFORD IL
2016-08-19 618-732-4XXX 4000–4999Assigned ONVOY, LLC 224C BLUFORD IL
2016-08-19 618-744-1XXX 1000–1999Assigned ONVOY, LLC 224C BELLEVILLE IL
2016-08-19 618-744-2XXX 2000–2999Assigned ONVOY, LLC 224C BELLEVILLE IL
2016-08-19 618-800-2XXX 2000–2999Assigned ONVOY, LLC 224C EDWARDSVL IL
2016-08-19 618-800-3XXX 3000–3999Assigned ONVOY, LLC 224C EDWARDSVL IL
2016-08-19 618-844-8XXX 8000–8999Assigned ONVOY, LLC 224C CARLYLE IL
2016-08-19 618-844-9XXX 9000–9999Assigned ONVOY, LLC 224C CARLYLE IL
2016-08-09 618-572-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 FLORA IL
2016-07-22 618-600-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2016-07-22 618-600-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2016-07-22 618-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRANITE CY IL
2016-06-14 618-734-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CAIRO IL
2016-05-20 618-699-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VANDALIA IL
2016-05-16 618-491-5XXX 5000–5999Assigned ONVOY, LLC 224C COLLINSVL 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.