NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 414
BANDWIDTH.COM CLEC, LLC - WI 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
2017-02-02 414-253-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2017-02-02 414-253-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2017-02-02 414-253-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2017-02-02 414-253-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2017-02-02 414-253-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2017-01-12 414-676-0XXX 0000–0999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-12 414-676-8XXX 8000–8999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-12 414-676-9XXX 9000–9999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-11 414-215-8XXX 8000–8999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-11 414-346-1XXX 1000–1999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-11 414-346-9XXX 9000–9999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-11 414-435-6XXX 6000–6999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2017-01-11 414-856-6XXX 6000–6999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2016-11-28 414-252-6XXX 6000–6999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-11-28 414-252-8XXX 8000–8999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-11-28 414-252-9XXX 9000–9999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-11-14 414-252-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2016-10-12 414-246-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN3 WI
2016-10-12 414-346-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN5 WI
2016-09-19 414-252-1XXX 1000–1999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-09-19 414-252-2XXX 2000–2999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-09-19 414-252-3XXX 3000–3999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-09-19 414-252-4XXX 4000–4999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-09-14 414-928-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MILWAUKZN4 WI
2016-08-12 414-252-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MILWAUKZN1 WI
2016-08-01 414-206-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C MILWAUKZN4 WI
2016-07-25 414-553-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2016-07-25 414-999-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2016-07-25 414-999-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2016-07-22 414-206-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN4 WI
2016-07-22 414-808-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2016-06-15 414-246-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN3 WI
2016-05-26 414-574-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN5 WI
2016-05-17 414-808-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2016-04-15 414-999-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN1 WI
2016-03-29 414-999-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2016-03-02 414-488-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2016-02-25 414-346-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C MILWAUKZN5 WI
2016-02-19 414-999-5XXX 5000–5999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-02-19 414-999-6XXX 6000–6999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-02-19 414-999-7XXX 7000–7999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-02-19 414-999-8XXX 8000–8999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2016-02-18 414-209-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2016-02-17 414-206-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN4 WI
2016-02-17 414-999-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 MILWAUKZN1 WI
2016-01-27 414-488-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN1 WI
2016-01-15 414-488-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2016-01-15 414-488-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2016-01-11 414-346-3XXX 3000–3999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2016-01-11 414-346-4XXX 4000–4999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI

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.