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
2014-10-28 414-376-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2014-10-28 414-376-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2014-10-28 414-435-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2014-10-22 414-797-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2014-10-22 414-797-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2014-10-22 414-855-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2014-10-22 414-855-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2014-10-22 414-855-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2014-10-22 414-865-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2014-10-22 414-865-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2014-10-15 414-930-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2014-10-15 414-930-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2014-10-14 414-301-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN5 WI
2014-10-14 414-448-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN3 WI
2014-09-30 414-797-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN4 WI
2014-09-30 414-930-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-09-30 414-930-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-09-30 414-930-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-09-25 414-930-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MILWAUKZN1 WI
2014-09-18 414-323-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MILWAUKZN1 WI
2014-09-15 414-439-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-439-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-439-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-439-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-522-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-522-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-522-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-522-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-539-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-539-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-15 414-539-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2014-09-05 414-766-3XXX 3000–3999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2014-09-05 414-888-9XXX 9000–9999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2014-08-27 414-323-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2014-08-20 414-858-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2014-08-20 414-858-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2014-08-20 414-858-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2014-08-13 414-436-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2014-08-05 414-855-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MILWAUKZN3 WI
2014-07-22 414-988-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2014-07-11 414-458-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN3 WI
2014-07-03 414-269-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-07-01 414-888-1XXX 1000–1999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2014-07-01 414-888-2XXX 2000–2999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2014-07-01 414-888-3XXX 3000–3999Assigned METROPCS, INC. 5562 MILWAUKZN5 WI
2014-07-01 414-930-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-06-26 414-377-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN3 WI
2014-05-28 414-269-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-05-28 414-269-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2014-05-20 414-533-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 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.