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 224
STRATUS NETWORKS 35
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
2020-11-13 224-272-0XXX 0000–0999Assigned STRATUS NETWORKS 495J ZION IL
2020-11-13 224-333-8XXX 8000–8999Assigned STRATUS NETWORKS 495J ALGONQUIN IL
2020-11-13 224-354-0XXX 0000–0999Assigned STRATUS NETWORKS 495J DESPLAINES IL
2020-11-13 224-363-6XXX 6000–6999Assigned STRATUS NETWORKS 495J ELGIN IL
2020-11-13 224-899-6XXX 6000–6999Assigned STRATUS NETWORKS 495J WHEELING IL
2020-11-13 224-922-0XXX 0000–0999Assigned STRATUS NETWORKS 495J GLENCOE IL
2020-11-13 224-966-0XXX 0000–0999Assigned STRATUS NETWORKS 495J PISTAKHLDS IL
2020-09-14 224-298-9XXX 9000–9999Assigned STRATUS NETWORKS 495J GRAYSLAKE IL
2020-09-14 224-332-0XXX 0000–0999Assigned STRATUS NETWORKS 495J LAKEFOREST IL
2020-09-14 224-977-1XXX 1000–1999Assigned STRATUS NETWORKS 495J NORTHBROOK IL
2020-09-10 224-724-7XXX 7000–7999Assigned STRATUS NETWORKS 495J SKOKIE IL
2020-09-10 224-933-8XXX 8000–8999Assigned STRATUS NETWORKS 495J ROUND LAKE IL
2020-09-05 224-346-0XXX 0000–0999Assigned STRATUS NETWORKS 495J LAKE VILLA IL
2020-09-04 224-350-1XXX 1000–1999Assigned STRATUS NETWORKS 495J EVANSTON IL
2020-09-04 224-451-8XXX 8000–8999Assigned STRATUS NETWORKS 495J BARRINGTON IL
2020-08-31 224-328-9XXX 9000–9999Assigned STRATUS NETWORKS 495J WINNETKA IL
2020-08-31 224-329-2XXX 2000–2999Assigned STRATUS NETWORKS 495J ROSELLE IL
2020-08-31 224-344-0XXX 0000–0999Assigned STRATUS NETWORKS 495J WILMETTE IL
2020-08-31 224-530-8XXX 8000–8999Assigned STRATUS NETWORKS 495J PLATO CTR IL
2020-08-31 224-732-8XXX 8000–8999Assigned STRATUS NETWORKS 495J WAUCONDA IL
2020-08-31 224-946-0XXX 0000–0999Assigned STRATUS NETWORKS 495J WAUKEGAN IL
2020-08-30 224-263-8XXX 8000–8999Assigned STRATUS NETWORKS 495J HUNTLEY IL
2020-08-30 224-286-0XXX 0000–0999Assigned STRATUS NETWORKS 495J LAKEZURICH IL
2020-08-30 224-295-4XXX 4000–4999Assigned STRATUS NETWORKS 495J PALATINE IL
2020-08-30 224-327-0XXX 0000–0999Assigned STRATUS NETWORKS 495J MUNDELEIN IL
2020-08-30 224-842-9XXX 9000–9999Assigned STRATUS NETWORKS 495J LIBERTYVL IL
2020-08-30 224-985-8XXX 8000–8999Assigned STRATUS NETWORKS 495J PARK RIDGE IL
2020-08-29 224-218-8XXX 8000–8999Assigned STRATUS NETWORKS 495J HAMPSHIRE IL
2020-08-29 224-225-3XXX 3000–3999Assigned STRATUS NETWORKS 495J FOX LAKE IL
2020-08-29 224-274-9XXX 9000–9999Assigned STRATUS NETWORKS 495J HALF DAY IL
2020-08-29 224-335-1XXX 1000–1999Assigned STRATUS NETWORKS 495J ANTIOCH IL
2020-08-29 224-758-9XXX 9000–9999Assigned STRATUS NETWORKS 495J ELK GROVE IL
2020-08-26 224-284-7XXX 7000–7999Assigned STRATUS NETWORKS 495J DEERFIELD IL
2020-08-26 224-367-0XXX 0000–0999Assigned STRATUS NETWORKS 495J DUNDEE IL
2020-08-26 224-487-9XXX 9000–9999Assigned STRATUS NETWORKS 495J CARY 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.