NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 419
CENTURYLINK COMMUNICATIONS, LLC 62
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
2017-03-13 419-452-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHESTERFLD OH
2015-04-24 419-567-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PAULDING OH
2014-08-19 419-459-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COONEY OH
2014-06-26 419-495-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILSHIWREN OH
2014-06-26 419-749-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CONVOY OH
2014-06-26 419-965-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OHIO CITY OH
2014-05-15 419-540-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SYLVANIA OH
2014-05-15 419-664-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAREY OH
2014-03-24 419-298-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EDGERTON OH
2014-03-24 419-299-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J VAN BUREN OH
2014-03-24 419-406-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PAYNE OH
2014-03-24 419-506-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ANTWERP OH
2014-03-24 419-590-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WAUSEON OH
2014-03-24 419-658-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEY OH
2014-03-24 419-924-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WEST UNITY OH
2014-03-21 419-595-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW RIEGEL OH
2014-03-21 419-665-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LINDSEY OH
2014-03-21 419-732-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PT CLINTON OH
2014-03-21 419-987-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARBLEHEAD OH
2014-03-20 419-208-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FREMONT OH
2014-03-20 419-273-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOREST OH
2014-03-20 419-359-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLOOMINGVL OH
2014-03-20 419-458-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHARTON OH
2014-03-20 419-504-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SANDUSKY OH
2014-03-20 419-582-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J YORKSHIRE OH
2014-03-20 419-585-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REPUBLIC OH
2014-03-20 419-701-0XXX 0000–0999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOSTORIA OH
2014-03-20 419-746-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J KELLEYS IS OH
2014-03-20 419-795-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MENDON OH
2014-03-20 419-827-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LAKEVILLE OH
2014-03-20 419-869-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J REDHAW OH
2014-03-20 419-877-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHITEHOUSE OH
2014-03-20 419-925-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARIASTEIN OH
2014-03-20 419-951-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILLARD OH
2014-03-20 419-962-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SAVANNAH OH
2014-03-20 419-983-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLOOMVILLE OH
2014-03-19 419-216-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTPELIER OH
2014-03-19 419-430-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DESHLER OH
2014-03-19 419-546-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EVANSPORT OH
2014-03-19 419-550-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRELTNMLNT OH
2014-03-19 419-830-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GRAND RPDS OH
2014-03-19 419-945-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J POLK OH
2014-03-19 419-956-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEFIANCE OH
2014-03-18 419-336-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORTH STAR OH
2014-03-18 419-570-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RCFLDCTBRY OH
2014-03-18 419-588-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BERLIN HTS OH
2014-03-18 419-801-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LUCKEY OH
2014-03-18 419-912-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ATTICA OH
2014-03-18 419-922-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HAYESVILLE OH
2014-03-18 419-954-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEW BREMEN OH

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.