NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2012-05-15 712-823-1XXX 1000–1999Assigned IMON COMMUNICATIONS LLC 7021 SERGENTBLF IA
2012-05-15 712-945-4XXX 4000–4999Assigned IMON COMMUNICATIONS LLC 7021 SALIX IA
2012-05-09 712-298-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 EMMETSBURG IA
2012-04-25 712-357-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E RED OAK IA
2012-04-25 712-485-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E NEOLA IA
2012-04-25 712-746-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E E HARRISBG IA
2012-03-08 712-624-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E MALVERN IA
2012-03-01 712-631-4XXX 4000–4999Assigned PREMIER COMMUNICATIONS, INC. - IA 904D SHELDON IA
2012-02-17 712-522-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX CITY IA
2012-02-14 712-759-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 SPIRITLAKE IA
2012-02-09 712-539-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LE MARS IA
2012-02-07 712-828-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2012-01-06 712-248-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E CARTERLAKE IA
2012-01-06 712-250-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E ATLANTIC IA
2011-12-28 712-215-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E SHENANDOAH IA
2011-12-13 712-525-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E SILVERCITY IA
2011-12-12 712-459-4XXX 4000–4999Assigned WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 1167 HARTLEY IA
2011-12-01 712-794-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CARROLL IA
2011-11-28 712-526-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E MINEOLA IA
2011-11-23 712-522-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX CITY IA
2011-11-15 712-254-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F ATLANTIC IA
2011-11-14 712-520-5XXX 5000–5999Assigned UNITED STATES CELLULAR - IA 6266 GLENWOOD IA
2011-11-03 712-326-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 COUNCILBLF IA
2011-10-19 712-454-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2011-10-03 712-730-8XXX 8000–8999Assigned UNITED STATES CELLULAR - IA 6266 STORM LAKE IA
2011-09-21 712-938-6XXX 6000–6999Assigned PREMIER COMMUNICATIONS, INC. - IA 904D MERRILL IA
2011-09-19 712-631-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SHELDON IA
2011-09-14 712-566-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E UNDERWOOD IA
2011-08-02 712-355-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2011-07-18 712-326-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 COUNCILBLF IA
2011-05-24 712-314-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E COUNCILBLF IA
2011-05-24 712-539-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LE MARS IA
2011-04-22 712-292-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CARROLL IA
2011-04-22 712-395-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ORANGECITY IA
2011-04-11 712-326-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 COUNCILBLF IA
2011-04-08 712-267-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 DENISON IA
2011-03-28 712-442-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOODBINE IA
2011-03-11 712-522-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX CITY IA
2011-03-03 712-326-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 COUNCILBLF IA
2011-02-22 712-314-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E COUNCILBLF IA
2011-01-10 712-823-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SERGENTBLF IA
2011-01-06 712-309-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 COUNCILBLF IA
2011-01-06 712-635-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2010-12-30 712-274-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 SIOUX CITY IA
2010-12-29 712-635-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2010-12-28 712-292-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 CARROLL IA
2010-12-20 712-590-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 MASSENA IA
2010-11-24 712-541-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 LE MARS IA
2010-11-24 712-635-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 SIOUX CITY IA
2010-11-17 712-720-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SIBLEY IA

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.