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 219
STRATUS NETWORKS 18
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
2021-01-26 219-268-0XXX 0000–0999Assigned STRATUS NETWORKS 495J MICHIGANCY IN
2021-01-19 219-244-9XXX 9000–9999Assigned STRATUS NETWORKS 495J LAKE STA IN
2021-01-19 219-312-9XXX 9000–9999Assigned STRATUS NETWORKS 495J VALPARAISO IN
2021-01-19 219-788-0XXX 0000–0999Assigned STRATUS NETWORKS 495J HOBART IN
2021-01-19 219-955-8XXX 8000–8999Assigned STRATUS NETWORKS 495J PORTAGE IN
2020-11-13 219-264-1XXX 1000–1999Assigned STRATUS NETWORKS 495J HAMMOND IN
2020-11-13 219-288-0XXX 0000–0999Assigned STRATUS NETWORKS 495J ST JOHN IN
2020-11-13 219-327-0XXX 0000–0999Assigned STRATUS NETWORKS 495J LOWELL IN
2020-11-13 219-348-9XXX 9000–9999Assigned STRATUS NETWORKS 495J WHITING IN
2020-11-13 219-356-4XXX 4000–4999Assigned STRATUS NETWORKS 495J CROWNPOINT IN
2020-11-13 219-516-8XXX 8000–8999Assigned STRATUS NETWORKS 495J E CHICAGO IN
2020-11-13 219-587-1XXX 1000–1999Assigned STRATUS NETWORKS 495J CEDAR LAKE IN
2020-11-13 219-758-0XXX 0000–0999Assigned STRATUS NETWORKS 495J MERRILLVL IN
2020-11-13 219-806-1XXX 1000–1999Assigned STRATUS NETWORKS 495J GARY IN
2020-11-13 219-867-0XXX 0000–0999Assigned STRATUS NETWORKS 495J DYER IN
2020-11-13 219-912-0XXX 0000–0999Assigned STRATUS NETWORKS 495J LAKE VLG IN
2020-11-13 219-966-0XXX 0000–0999Assigned STRATUS NETWORKS 495J HIGHLAND IN
2020-09-03 219-419-1XXX 1000–1999Assigned STRATUS NETWORKS 495J WANATAH IN

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.