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
2018-06-29 618-677-6XXX 6000–6999Assigned ONVOY, LLC 224C FAYETTEVL IL
2018-06-29 618-706-6XXX 6000–6999Assigned ONVOY, LLC 224C BATCHTOWN IL
2018-06-29 618-729-7XXX 7000–7999Assigned ONVOY, LLC 224C MEDORA IL
2018-06-29 618-749-4XXX 4000–4999Assigned ONVOY, LLC 224C KEYESPORT IL
2018-06-29 618-753-5XXX 5000–5999Assigned ONVOY, LLC 224C CHESTERBDG IL
2018-06-29 618-762-2XXX 2000–2999Assigned ONVOY, LLC 224C WALTONVL IL
2018-06-29 618-765-5XXX 5000–5999Assigned ONVOY, LLC 224C BARTELSO IL
2018-06-29 618-778-8XXX 8000–8999Assigned ONVOY, LLC 224C HETTICK IL
2018-06-29 618-836-3XXX 3000–3999Assigned ONVOY, LLC 224C SHIPMAN IL
2018-06-29 618-881-1XXX 1000–1999Assigned ONVOY, LLC 224C ALTAMONT IL
2018-06-29 618-883-8XXX 8000–8999Assigned ONVOY, LLC 224C BRUSSELS IL
2018-06-29 618-892-2XXX 2000–2999Assigned ONVOY, LLC 224C FARINA IL
2018-06-29 618-934-4XXX 4000–4999Assigned ONVOY, LLC 224C SUMMERFLD IL
2018-06-20 618-494-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E JERSEYVL IL
2018-06-20 618-816-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MT VERNON IL
2018-06-18 618-221-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BREESE IL
2018-06-13 618-490-2XXX 2000–2999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F CARBONDALE IL
2018-06-01 618-515-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K E ST LOUIS IL
2018-05-24 618-710-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E FREEBURG IL
2018-05-22 618-500-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GRANITE CY IL
2018-05-15 618-693-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BETHALTO IL
2018-05-15 618-703-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GREENVILLE IL
2018-05-15 618-800-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EDWARDSVL IL
2018-05-14 618-221-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BREESE IL
2018-05-14 618-383-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARMI IL
2018-05-14 618-383-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARMI IL
2018-05-14 618-383-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARMI IL
2018-05-14 618-387-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 CARMI IL
2018-05-14 618-744-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BELLEVILLE IL
2018-05-11 618-418-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2018-05-11 618-418-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2018-05-11 618-418-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2018-04-20 618-368-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HARDIN IL
2018-04-20 618-640-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST JACOB IL
2018-04-20 618-687-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MURPHYSBO IL
2018-04-20 618-732-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BLUFORD IL
2018-04-17 618-418-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BELLEVILLE IL
2018-04-13 618-481-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BRIGHTON IL
2018-04-10 618-515-8XXX 8000–8999Assigned METROPCS, INC. 5562 E ST LOUIS IL
2018-04-10 618-601-0XXX 0000–0999Assigned METROPCS, INC. 5562 DUPO IL
2018-04-10 618-701-8XXX 8000–8999Assigned METROPCS, INC. 5562 HIGHLAND IL
2018-04-05 618-719-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COLUMBIA IL
2018-04-04 618-424-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ADDIEVILLE IL
2018-03-28 618-702-2XXX 2000–2999Assigned METROPCS, INC. 5562 LEBANON IL
2018-03-26 618-493-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K HOYLETON IL
2018-03-26 618-612-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RED BUD IL
2018-03-23 618-212-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BELLEVILLE IL
2018-03-19 618-202-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ANNA IL
2018-03-19 618-582-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NEW ATHENS IL
2018-03-19 618-961-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GLENCARBON 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.