NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

9 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 515
ONVOY, LLC - IA 5
AUREON COMMUNICATIONS, LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 1
BANDWIDTH.COM CLEC, LLC - IA 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
2022-08-03 515-552-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E INDIANOLA IA
2022-08-03 515-690-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E INDIANOLA IA
2022-08-03 515-915-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E GRANGER IA
2022-08-03 515-915-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E GRANGER IA
2022-08-03 515-915-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E GRANGER IA
2022-08-03 515-915-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E GRANGER IA
2022-07-21 515-788-1XXX 1000–1999Assigned METROPCS, INC. 5562 PERRY IA
2022-06-22 515-412-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IA 8344 DES MOINES IA
2022-06-20 515-552-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E INDIANOLA IA
2022-06-13 515-567-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J AMES IA
2022-06-09 515-435-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ROLAND IA
2022-05-31 515-581-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ADEL IA
2022-05-31 515-581-2XXX 2000–2999Assigned METROPCS, INC. 5562 ADEL IA
2022-05-18 515-581-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ADEL IA
2022-05-04 515-567-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 AMES IA
2022-05-03 515-671-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2022-04-28 515-461-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2022-04-12 515-445-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HUXLEY IA
2022-04-12 515-858-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 DES MOINES IA
2022-03-25 515-784-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAWSON IA
2022-03-23 515-529-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J COLFAX IA
2022-03-23 515-843-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J CLARE IA
2022-03-23 515-946-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J ELKHART IA
2022-03-18 515-671-6XXX 6000–6999Assigned MINBURN TELEPHONE COMPANY - IA 143H DES MOINES IA
2022-03-18 515-969-6XXX 6000–6999Assigned MINBURN TELEPHONE COMPANY - IA 143H DALLAS CTR IA
2022-03-15 515-666-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IA 9877 DES MOINES IA
2022-03-14 515-228-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J SLATER IA
2022-03-14 515-377-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J EARLHAM IA
2022-03-14 515-442-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J INDIANOLA IA
2022-03-14 515-464-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MCCALLSBG IA
2022-03-14 515-466-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WHITTEMORE IA
2022-03-14 515-666-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J DES MOINES IA
2022-03-14 515-667-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J GOWRIE IA
2022-03-14 515-788-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J PERRY IA
2022-03-14 515-848-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J PLEASANTVL IA
2022-03-12 515-581-6XXX 6000–6999Assigned MINBURN TELEPHONE COMPANY - IA 143H ADEL IA
2022-03-10 515-626-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 BOONE IA
2022-03-10 515-667-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 6570 GOWRIE IA
2022-03-09 515-391-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JEFFERSON IA
2022-03-09 515-690-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 INDIANOLA IA
2022-03-08 515-391-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 JEFFERSON IA
2022-03-04 515-626-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J BOONE IA
2022-03-04 515-862-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J STORY CITY IA
2022-03-01 515-896-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J RIPPEY IA
2022-02-22 515-622-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J GILMORE CY IA
2022-02-22 515-915-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E GRANGER IA
2022-02-21 515-366-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J DEXTER IA
2022-02-21 515-426-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J DE SOTO IA
2022-02-18 515-762-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E RUNNELLS IA
2022-02-18 515-784-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAWSON 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.