NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 316
NEW CINGULAR WIRELESS PCS, LLC - IL 14
BANDWIDTH.COM CLEC, LLC - KS 6
ONVOY, LLC - KS 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
2011-06-16 316-559-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-559-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-559-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-559-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-559-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-609-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-609-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-16 316-609-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-01 316-618-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-01 316-618-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-06-01 316-618-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-05-27 316-435-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EL DORADO KS
2011-05-27 316-477-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WHITEWATER KS
2011-05-27 316-530-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E BENTON KS
2011-05-27 316-536-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C TOWANDA KS
2011-05-27 316-587-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C NEWTON KS
2011-05-17 316-573-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITA KS
2011-05-13 316-361-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J WICHITA KS
2011-05-06 316-631-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-05-06 316-631-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-05-03 316-350-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-05-03 316-351-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-05-03 316-361-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-05-03 316-361-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-05-03 316-361-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-05-03 316-500-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-05-03 316-500-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WICHITA KS
2011-04-21 316-804-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J NEWTON KS
2011-04-04 316-351-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2011-03-10 316-444-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ANDALE KS
2011-03-10 316-882-7XXX 7000–7999Assigned ONVOY, LLC - KS 205F WICHITA KS
2011-03-10 316-941-7XXX 7000–7999Assigned ONVOY, LLC - KS 205F WICHITA KS
2011-03-04 316-573-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITA KS
2011-03-03 316-281-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NEWTON KS
2011-02-25 316-779-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-02-25 316-796-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-02-25 316-796-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-02-25 316-796-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-02-17 316-215-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - KS 986E WHITEWATER KS
2011-02-14 316-361-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - KS 7593 WICHITA KS
2011-02-04 316-670-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WICHITA KS
2011-01-10 316-554-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITA KS
2011-01-10 316-554-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WICHITA KS
2011-01-06 316-558-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 WICHITA KS
2011-01-06 316-558-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 WICHITA KS
2011-01-06 316-558-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS 6532 WICHITA KS
2010-12-28 316-869-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-12-22 316-941-8XXX 8000–8999Assigned ONVOY, LLC - KS 205F WICHITA KS
2010-11-16 316-448-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS
2010-11-16 316-448-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WICHITA KS

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.