NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 334
CENTURYLINK COMMUNICATIONS, LLC 43
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
2017-11-01 334-455-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAMDEN AL
2014-08-04 334-641-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DEMOPOLIS AL
2014-06-12 334-292-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MARION AL
2014-06-12 334-310-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PRATTVILLE AL
2014-06-12 334-316-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLAYTON AL
2014-06-12 334-352-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENSBORO AL
2014-06-12 334-366-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MAPLESVL AL
2014-06-12 334-377-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HURTSBORO AL
2014-06-12 334-422-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LINDEN AL
2014-06-12 334-472-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WETUMPKA AL
2014-06-12 334-487-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TUSKEGEE AL
2014-06-12 334-569-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOLTVILLE AL
2014-06-12 334-605-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SELMA AL
2014-06-12 334-609-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J THOMASVL AL
2014-06-12 334-689-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EUFAULA AL
2014-06-12 334-697-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TROY AL
2014-06-12 334-708-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FT DEPOSIT AL
2014-06-12 334-758-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J AUBURN AL
2014-03-25 334-384-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PHENIXCITY AL
2013-11-25 334-896-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWTON AL
2013-10-31 334-203-8XXX 8000–8999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OPELIKA AL
2013-08-08 334-248-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GENEVA AL
2013-08-08 334-282-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ELBA AL
2013-08-08 334-336-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SLOCOMB AL
2013-08-08 334-342-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRANTLEY AL
2013-08-08 334-344-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRUNDIDGE AL
2013-08-08 334-368-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GREENVILLE AL
2013-08-08 334-432-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OZARK AL
2013-08-08 334-489-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ENTERPRISE AL
2013-08-08 334-504-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ANDALUSIA AL
2013-08-08 334-542-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RED LEVEL AL
2013-08-08 334-575-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ABBEVILLE AL
2013-08-08 334-586-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NEWBROCKTN AL
2013-08-08 334-698-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WICKSBURG AL
2013-08-08 334-709-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DALEVILLE AL
2013-08-08 334-723-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HARTFORD AL
2013-08-08 334-764-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J OPP AL
2013-08-08 334-785-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HEADLAND AL
2013-08-08 334-892-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GANTT AL
2013-08-08 334-945-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DOZIER AL
2013-08-08 334-997-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SAMSON AL
2013-06-17 334-523-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MONTGOMERY AL
2013-03-15 334-547-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J DOTHAN AL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.