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
2011-05-18 414-286-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-386-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2011-05-18 414-386-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN3 WI
2011-05-18 414-562-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-616-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-765-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-792-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-815-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2011-05-18 414-882-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-882-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-882-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN1 WI
2011-05-18 414-892-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2011-05-18 414-892-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2011-05-18 414-892-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN5 WI
2011-05-18 414-973-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MILWAUKZN4 WI
2011-05-10 414-973-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN4 WI
2011-05-09 414-368-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C MILWAUKZN4 WI
2011-04-12 414-368-2XXX 2000–2999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN4 WI
2011-04-04 414-239-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C MILWAUKZN1 WI
2011-03-31 414-882-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2011-03-31 414-988-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2011-03-31 414-988-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2011-03-17 414-239-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2011-03-17 414-239-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2011-03-02 414-366-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-03-02 414-366-9XXX 9000–9999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2011-02-22 414-988-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K MILWAUKZN1 WI
2011-02-03 414-233-0XXX 0000–0999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2011-02-03 414-233-1XXX 1000–1999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2011-02-03 414-233-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-233-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-233-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-233-5XXX 5000–5999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2011-02-03 414-233-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-233-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-233-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-233-9XXX 9000–9999Assigned METROPCS, INC. 5562 MILWAUKZN1 WI
2011-02-03 414-484-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-484-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-484-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-484-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2011-02-03 414-484-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 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.