NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 815
STRATUS NETWORKS 72
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
2021-03-03 815-647-2XXX 2000–2999Assigned STRATUS NETWORKS 495J CULLOM IL
2021-03-03 815-686-6XXX 6000–6999Assigned STRATUS NETWORKS 495J PIPER CITY IL
2021-01-20 815-869-5XXX 5000–5999Assigned STRATUS NETWORKS 495J MAGNOLIA IL
2020-12-15 815-597-3XXX 3000–3999Assigned STRATUS NETWORKS 495J GARDENPRRI IL
2020-12-15 815-800-9XXX 9000–9999Assigned STRATUS NETWORKS 495J POPLAR GRV IL
2020-11-23 815-554-1XXX 1000–1999Assigned STRATUS NETWORKS 495J E DUBUQUE IL
2020-11-23 815-859-1XXX 1000–1999Assigned STRATUS NETWORKS 495J ROCHELLE IL
2020-11-23 815-989-1XXX 1000–1999Assigned STRATUS NETWORKS 495J PROPHETSTN IL
2020-11-13 815-435-1XXX 1000–1999Assigned STRATUS NETWORKS 495J BEAVERVL IL
2020-11-13 815-604-1XXX 1000–1999Assigned STRATUS NETWORKS 495J BELVIDERE IL
2020-09-15 815-283-9XXX 9000–9999Assigned STRATUS NETWORKS 495J WATERMAN IL
2020-09-15 815-396-1XXX 1000–1999Assigned STRATUS NETWORKS 495J STEWARD IL
2020-09-15 815-453-1XXX 1000–1999Assigned STRATUS NETWORKS 495J ASHTON IL
2020-09-15 815-559-9XXX 9000–9999Assigned STRATUS NETWORKS 495J CHENOA IL
2020-09-15 815-567-4XXX 4000–4999Assigned STRATUS NETWORKS 495J CAMPUS IL
2020-09-15 815-571-1XXX 1000–1999Assigned STRATUS NETWORKS 495J SHANNON IL
2020-09-15 815-576-1XXX 1000–1999Assigned STRATUS NETWORKS 495J POLO IL
2020-09-15 815-595-1XXX 1000–1999Assigned STRATUS NETWORKS 495J OREGON IL
2020-09-15 815-629-0XXX 0000–0999Assigned STRATUS NETWORKS 495J SHIRLAND IL
2020-09-15 815-688-5XXX 5000–5999Assigned STRATUS NETWORKS 495J STRAWN IL
2020-09-15 815-702-3XXX 3000–3999Assigned STRATUS NETWORKS 495J SAUNEMIN IL
2020-09-15 815-784-0XXX 0000–0999Assigned STRATUS NETWORKS 495J GENOA IL
2020-09-15 815-849-2XXX 2000–2999Assigned STRATUS NETWORKS 495J SUBLETTE IL
2020-09-15 815-855-0XXX 0000–0999Assigned STRATUS NETWORKS 495J MILLEDGEVL IL
2020-09-15 815-857-1XXX 1000–1999Assigned STRATUS NETWORKS 495J AMBOY IL
2020-09-15 815-892-1XXX 1000–1999Assigned STRATUS NETWORKS 495J STILMANVLY IL
2020-09-15 815-913-8XXX 8000–8999Assigned STRATUS NETWORKS 495J CHADWICK IL
2020-09-15 815-934-1XXX 1000–1999Assigned STRATUS NETWORKS 495J EMINGTON IL
2020-09-15 815-949-3XXX 3000–3999Assigned STRATUS NETWORKS 495J CABERY IL
2020-09-15 815-982-8XXX 8000–8999Assigned STRATUS NETWORKS 495J TAMPICO IL
2020-09-15 815-998-6XXX 6000–6999Assigned STRATUS NETWORKS 495J ODELL IL
2020-09-14 815-916-1XXX 1000–1999Assigned STRATUS NETWORKS 495J PLATTVILLE IL
2020-09-04 815-918-2XXX 2000–2999Assigned STRATUS NETWORKS 495J CLIFTON IL
2020-09-03 815-957-8XXX 8000–8999Assigned STRATUS NETWORKS 495J ROCKTON IL
2020-08-31 815-357-0XXX 0000–0999Assigned STRATUS NETWORKS 495J SENECA IL
2020-08-31 815-691-9XXX 9000–9999Assigned STRATUS NETWORKS 495J UTICA IL
2020-08-30 815-306-9XXX 9000–9999Assigned STRATUS NETWORKS 495J LOCKPORT IL
2020-08-30 815-478-8XXX 8000–8999Assigned STRATUS NETWORKS 495J MANHATTAN IL
2020-08-30 815-568-9XXX 9000–9999Assigned STRATUS NETWORKS 495J MARENGO IL
2020-08-30 815-617-0XXX 0000–0999Assigned STRATUS NETWORKS 495J OTTAWA IL
2020-08-30 815-620-1XXX 1000–1999Assigned STRATUS NETWORKS 495J MINOOKA IL
2020-08-30 815-658-1XXX 1000–1999Assigned STRATUS NETWORKS 495J NEWARK IL
2020-08-30 815-662-9XXX 9000–9999Assigned STRATUS NETWORKS 495J MOMENCE IL
2020-08-29 815-237-1XXX 1000–1999Assigned STRATUS NETWORKS 495J GARDNER IL
2020-08-29 815-265-0XXX 0000–0999Assigned STRATUS NETWORKS 495J GILMAN IL
2020-08-29 815-465-9XXX 9000–9999Assigned STRATUS NETWORKS 495J GRANT PARK IL
2020-08-29 815-860-9XXX 9000–9999Assigned STRATUS NETWORKS 495J ELWOOD IL
2020-08-29 815-887-4XXX 4000–4999Assigned STRATUS NETWORKS 495J HARVARD IL
2020-08-25 815-317-9XXX 9000–9999Assigned STRATUS NETWORKS 495J CRESCENTCY IL
2020-08-25 815-473-9XXX 9000–9999Assigned STRATUS NETWORKS 495J WOODLAND 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.