NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 618
STRATUS NETWORKS 112
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
2021-11-17 618-506-9XXX 9000–9999Assigned STRATUS NETWORKS 495J HETTICK IL
2021-11-17 618-575-8XXX 8000–8999Assigned STRATUS NETWORKS 495J SEFTON IL
2021-11-17 618-705-1XXX 1000–1999Assigned STRATUS NETWORKS 495J ALBERS IL
2021-11-17 618-720-1XXX 1000–1999Assigned STRATUS NETWORKS 495J POCAHONTAS IL
2021-11-17 618-721-1XXX 1000–1999Assigned STRATUS NETWORKS 495J BROWNSTOWN IL
2021-11-17 618-761-1XXX 1000–1999Assigned STRATUS NETWORKS 495J HOFFMAN IL
2021-11-17 618-766-9XXX 9000–9999Assigned STRATUS NETWORKS 495J IRVINGTON IL
2021-11-17 618-769-1XXX 1000–1999Assigned STRATUS NETWORKS 495J BARTELSO IL
2020-11-23 618-280-8XXX 8000–8999Assigned STRATUS NETWORKS 495J ADDIEVILLE IL
2020-11-20 618-309-0XXX 0000–0999Assigned STRATUS NETWORKS 495J METROPOLIS IL
2020-11-20 618-342-1XXX 1000–1999Assigned STRATUS NETWORKS 495J VILLARIDGE IL
2020-11-20 618-386-0XXX 0000–0999Assigned STRATUS NETWORKS 495J HURST IL
2020-11-20 618-422-3XXX 3000–3999Assigned STRATUS NETWORKS 495J MARION IL
2020-11-20 618-568-3XXX 3000–3999Assigned STRATUS NETWORKS 495J ELKVILLE IL
2020-11-20 618-571-8XXX 8000–8999Assigned STRATUS NETWORKS 495J PINCKNEYVL IL
2020-11-20 618-591-8XXX 8000–8999Assigned STRATUS NETWORKS 495J ELDORADO IL
2020-11-20 618-625-9XXX 9000–9999Assigned STRATUS NETWORKS 495J SESSER IL
2020-11-20 618-626-1XXX 1000–1999Assigned STRATUS NETWORKS 495J DU QUOIN IL
2020-11-20 618-627-8XXX 8000–8999Assigned STRATUS NETWORKS 495J THOMPSONVL IL
2020-11-20 618-634-8XXX 8000–8999Assigned STRATUS NETWORKS 495J KARNAK IL
2020-11-20 618-657-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CYPRESS IL
2020-11-20 618-668-1XXX 1000–1999Assigned STRATUS NETWORKS 495J GOLCONDA IL
2020-11-20 618-712-8XXX 8000–8999Assigned STRATUS NETWORKS 495J THEBES IL
2020-11-20 618-727-8XXX 8000–8999Assigned STRATUS NETWORKS 495J HERRIN IL
2020-11-20 618-745-1XXX 1000–1999Assigned STRATUS NETWORKS 495J MOUNDS IL
2020-11-20 618-748-0XXX 0000–0999Assigned STRATUS NETWORKS 495J MOUND CITY IL
2020-11-20 618-776-1XXX 1000–1999Assigned STRATUS NETWORKS 495J OLIVE BRCH IL
2020-11-20 618-777-9XXX 9000–9999Assigned STRATUS NETWORKS 495J STONEFORT IL
2020-11-20 618-827-1XXX 1000–1999Assigned STRATUS NETWORKS 495J DONGOLA IL
2020-11-20 618-845-8XXX 8000–8999Assigned STRATUS NETWORKS 495J ULLIN IL
2020-11-20 618-867-8XXX 8000–8999Assigned STRATUS NETWORKS 495J DE SOTO IL
2020-11-20 618-891-1XXX 1000–1999Assigned STRATUS NETWORKS 495J TAMMS IL
2020-11-20 618-924-8XXX 8000–8999Assigned STRATUS NETWORKS 495J MURPHYSBO IL
2020-11-20 618-933-1XXX 1000–1999Assigned STRATUS NETWORKS 495J WFRANKFORT IL
2020-11-20 618-952-8XXX 8000–8999Assigned STRATUS NETWORKS 495J JOHNSTONCY IL
2020-11-20 618-982-4XXX 4000–4999Assigned STRATUS NETWORKS 495J PAULTON IL
2020-11-20 618-984-9XXX 9000–9999Assigned STRATUS NETWORKS 495J ROYALTON IL
2020-11-19 618-426-8XXX 8000–8999Assigned STRATUS NETWORKS 495J AVA IL
2020-11-19 618-564-8XXX 8000–8999Assigned STRATUS NETWORKS 495J BROOKPORT IL
2020-11-19 618-621-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CAIRO IL
2020-11-19 618-674-8XXX 8000–8999Assigned STRATUS NETWORKS 495J CARRIERSML IL
2020-11-19 618-733-0XXX 0000–0999Assigned STRATUS NETWORKS 495J CARTERVL IL
2020-11-19 618-788-0XXX 0000–0999Assigned STRATUS NETWORKS 495J ANNA IL
2020-11-19 618-996-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CREAL SPG IL
2020-11-18 618-205-0XXX 0000–0999Assigned STRATUS NETWORKS 495J GLENCARBON IL
2020-11-18 618-206-0XXX 0000–0999Assigned STRATUS NETWORKS 495J O FALLON IL
2020-11-18 618-213-0XXX 0000–0999Assigned STRATUS NETWORKS 495J EDGEMONT IL
2020-11-18 618-228-8XXX 8000–8999Assigned STRATUS NETWORKS 495J AVISTON IL
2020-11-18 618-245-8XXX 8000–8999Assigned STRATUS NETWORKS 495J FARINA IL
2020-11-18 618-323-9XXX 9000–9999Assigned STRATUS NETWORKS 495J IUKA 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.