NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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, last 30 days — NPA 712
NEW CINGULAR WIRELESS PCS, LLC - IL 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
2010-03-03 712-523-1XXX 1000–1999Assigned MCC TELEPHONY LLC 593K BEDFORD IA
2010-03-03 712-662-8XXX 8000–8999Assigned MCC TELEPHONY LLC 593K SAC CITY IA
2010-03-03 712-939-9XXX 9000–9999Assigned MCC TELEPHONY LLC 593K VILLISCA IA
2010-03-02 712-297-2XXX 2000–2999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F ROCKWELLCY IA
2010-03-02 712-464-0XXX 0000–0999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F LAKE CITY IA
2010-03-02 712-469-0XXX 0000–0999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F MANSON IA
2010-02-23 712-415-1XXX 1000–1999Assigned MCC TELEPHONY OF IOWA, LLC - IA 751F EMMETSBURG IA
2010-02-16 712-220-1XXX 1000–1999Assigned MCC TELEPHONY LLC 593K CARROLL IA
2010-02-16 712-588-1XXX 1000–1999Assigned MCC TELEPHONY LLC 593K AUDUBON IA
2010-02-08 712-635-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2010-01-18 712-308-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2009-12-01 712-454-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 SIOUX CITY IA
2009-10-30 712-587-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX CITY IA
2009-10-26 712-338-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MILFORD IA
2009-10-26 712-339-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SPIRITLAKE IA
2009-10-26 712-380-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ESTHERVL IA
2009-10-22 712-221-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 CHEROKEE IA
2009-10-22 712-264-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SPENCER IA
2009-10-22 712-283-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX RPD IA
2009-10-22 712-291-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 STORM LAKE IA
2009-10-22 712-335-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 POCAHONTAS IA
2009-10-22 712-380-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 ESTHERVL IA
2009-10-22 712-423-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 ONAWA IA
2009-10-22 712-883-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DANBURY IA
2009-10-20 712-308-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2009-10-08 712-635-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2009-09-17 712-560-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX CITY IA
2009-08-27 712-308-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2009-08-13 712-541-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LE MARS IA
2009-07-21 712-308-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2009-07-09 712-475-6XXX 6000–6999Assigned PREMIER COMMUNICATIONS, INC. - IA 904D GEORGE IA
2009-07-09 712-541-6XXX 6000–6999Assigned PREMIER COMMUNICATIONS, INC. - IA 904D LE MARS IA
2009-07-09 712-737-9XXX 9000–9999Assigned PREMIER COMMUNICATIONS, INC. - IA 904D ORANGECITY IA
2009-06-01 712-472-0XXX 0000–0999Assigned PREMIER COMMUNICATIONS, INC. - IA 904D ROCKRAPIDS IA
2009-05-19 712-541-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LE MARS IA
2009-04-21 712-400-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROCKRAPIDS IA
2009-03-31 712-904-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AKRON IA
2009-03-25 712-378-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KINGSLEY IA
2009-03-25 712-475-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 GEORGE IA
2009-03-23 712-563-6XXX 6000–6999Assigned UNITED STATES CELLULAR - IA 6266 AUDUBON IA
2009-03-05 712-283-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SIOUX RPD IA
2009-03-05 712-291-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 STORM LAKE IA
2009-03-05 712-448-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PAULLINA IA
2009-03-05 712-728-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HARTLEY IA
2009-03-05 712-757-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PRIMGHAR IA
2009-03-05 712-843-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ALBERTCITY IA
2009-01-21 712-577-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2009-01-21 712-577-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2009-01-21 712-577-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2008-12-15 712-308-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA

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.