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
2008-02-20 414-334-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2008-02-20 414-368-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2008-02-20 414-368-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2008-02-20 414-369-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2008-02-07 414-306-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2008-02-07 414-306-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2008-02-07 414-306-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2008-02-07 414-446-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2008-02-07 414-446-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2008-01-31 414-817-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2008-01-31 414-817-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2008-01-15 414-502-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MILWAUKZN1 WI
2008-01-11 414-625-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2008-01-11 414-678-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2008-01-02 414-389-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2007-12-11 414-306-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2007-12-11 414-334-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-12-11 414-737-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-12-06 414-459-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN1 WI
2007-12-06 414-604-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN1 WI
2007-11-19 414-935-4XXX 4000–4999Assigned TDS METROCOM, LLC 520K MILWAUKZN1 WI
2007-11-19 414-935-6XXX 6000–6999Assigned TDS METROCOM, LLC 520K MILWAUKZN1 WI
2007-11-16 414-236-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2007-11-12 414-208-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MILWAUKZN1 WI
2007-11-05 414-236-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2007-11-05 414-334-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-10-24 414-393-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2007-10-24 414-393-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN1 WI
2007-09-18 414-306-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN3 WI
2007-09-14 414-334-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-09-14 414-334-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN5 WI
2007-09-14 414-446-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN4 WI
2007-09-12 414-336-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2007-09-12 414-336-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2007-09-12 414-336-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2007-09-12 414-897-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2007-09-12 414-897-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2007-09-12 414-897-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MILWAUKZN1 WI
2007-09-11 414-459-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MILWAUKZN1 WI
2007-08-23 414-312-9XXX 9000–9999Assigned LEVEL 3 TELECOM OF WISCONSIN, LP - WI 7322 MILWAUKZN1 WI
2007-08-21 414-212-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2007-08-21 414-226-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2007-08-21 414-226-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2007-08-21 414-231-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2007-08-21 414-312-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2007-08-21 414-312-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN1 WI
2007-08-15 414-301-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K MILWAUKZN5 WI
2007-08-14 414-336-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K MILWAUKZN1 WI
2007-08-02 414-236-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILWAUKZN4 WI
2007-08-01 414-292-5XXX 5000–5999Assigned METROPCS, INC. 5562 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.