NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 913
LEVEL 3 COMMUNICATIONS, LLC - KS 131
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2023-05-12 913-247-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 SPRINGHILL KS
2022-04-26 913-934-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2022-03-24 913-934-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2022-03-24 913-934-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2021-12-07 913-408-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2021-06-29 913-399-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2021-04-15 913-389-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2020-12-08 913-391-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2019-08-21 913-856-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 GARDNER KS
2019-06-12 913-900-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 LANCASTER KS
2016-05-03 913-774-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 WINCHESTER KS
2016-04-22 913-803-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 NORTONVL KS
2016-04-11 913-326-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2014-09-30 913-267-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2014-09-30 913-267-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2014-05-21 913-804-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ATCHISON KS
2014-05-15 913-245-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 OSAWATOMIE KS
2014-05-15 913-828-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 LEAVENWTH KS
2014-04-11 913-380-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ELWOOD KS
2014-02-20 913-353-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 OLATHE KS
2014-01-29 913-225-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2014-01-29 913-701-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2013-12-19 913-225-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2013-09-25 913-301-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 LINWOOD KS
2013-09-25 913-756-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 BLUE MOUND KS
2013-09-25 913-773-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 EASTON KS
2013-09-25 913-833-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 EFFINGHAM KS
2013-09-25 913-849-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 FONTANA KS
2013-09-25 913-882-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 EDGERTON KS
2013-09-25 913-898-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 PARKER KS
2013-09-06 913-215-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 GARDNER KS
2013-07-05 913-325-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2013-06-20 913-543-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 BONNER SPG KS
2013-06-13 913-203-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 ATCHISON KS
2013-05-20 913-305-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2013-05-20 913-305-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2013-05-20 913-305-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2013-05-13 913-828-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 LEAVENWTH KS
2012-11-14 913-954-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2012-11-14 913-954-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2012-10-11 913-210-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 OLATHE KS
2012-06-21 913-213-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2012-02-16 913-721-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 BONNER SPG KS
2012-01-26 913-795-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 MOUND CITY KS
2011-12-16 913-815-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 OLATHE KS
2011-06-22 913-667-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 BONNER SPG KS
2011-05-27 913-241-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2011-05-27 913-241-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2011-05-27 913-241-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS
2011-05-27 913-241-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - KS 2240 KANSASCITY KS

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.