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 641
METROPCS, INC. 50
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
2026-06-11 641-408-9XXX 9000–9999Assigned METROPCS, INC. 5562 CORNING IA
2026-05-19 641-266-1XXX 1000–1999Assigned METROPCS, INC. 5562 ACKLEY IA
2025-04-01 641-221-7XXX 7000–7999Assigned METROPCS, INC. 5562 GREENFIELD IA
2025-04-01 641-304-3XXX 3000–3999Assigned METROPCS, INC. 5562 LENOX IA
2025-04-01 641-790-7XXX 7000–7999Assigned METROPCS, INC. 5562 SIGOURNEY IA
2025-03-31 641-674-3XXX 3000–3999Assigned METROPCS, INC. 5562 CENTERVL IA
2025-03-28 641-241-3XXX 3000–3999Assigned METROPCS, INC. 5562 FONTANELLE IA
2025-03-28 641-256-0XXX 0000–0999Assigned METROPCS, INC. 5562 CRESTON IA
2025-03-28 641-431-2XXX 2000–2999Assigned METROPCS, INC. 5562 YALE IA
2025-03-28 641-560-4XXX 4000–4999Assigned METROPCS, INC. 5562 FAIRFIELD IA
2025-03-25 641-208-3XXX 3000–3999Assigned METROPCS, INC. 5562 BLOOMFIELD IA
2025-03-25 641-359-7XXX 7000–7999Assigned METROPCS, INC. 5562 IOWA FALLS IA
2025-03-25 641-776-8XXX 8000–8999Assigned METROPCS, INC. 5562 CHARITON IA
2025-03-24 641-446-0XXX 0000–0999Assigned METROPCS, INC. 5562 LEON IA
2025-03-24 641-503-5XXX 5000–5999Assigned METROPCS, INC. 5562 MOUNT AYR IA
2025-03-24 641-508-8XXX 8000–8999Assigned METROPCS, INC. 5562 OSCEOLA IA
2025-03-24 641-858-4XXX 4000–4999Assigned METROPCS, INC. 5562 ELDORA IA
2018-07-30 641-384-9XXX 9000–9999Assigned METROPCS, INC. 5562 BELMOND IA
2018-07-27 641-528-0XXX 0000–0999Assigned METROPCS, INC. 5562 MALCOM IA
2018-07-27 641-710-6XXX 6000–6999Assigned METROPCS, INC. 5562 STACYVILLE IA
2018-07-18 641-317-3XXX 3000–3999Assigned METROPCS, INC. 5562 KANAWHA IA
2018-07-18 641-372-3XXX 3000–3999Assigned METROPCS, INC. 5562 ROCKWELL IA
2018-07-18 641-473-4XXX 4000–4999Assigned METROPCS, INC. 5562 GLADBROOK IA
2018-07-18 641-705-5XXX 5000–5999Assigned METROPCS, INC. 5562 ELMA IA
2018-07-18 641-808-4XXX 4000–4999Assigned METROPCS, INC. 5562 COLO IA
2018-07-18 641-869-8XXX 8000–8999Assigned METROPCS, INC. 5562 WELLSBURG IA
2018-07-18 641-909-2XXX 2000–2999Assigned METROPCS, INC. 5562 LAKE MILLS IA
2018-06-20 641-354-9XXX 9000–9999Assigned METROPCS, INC. 5562 MARSHALLTN IA
2018-06-20 641-630-9XXX 9000–9999Assigned METROPCS, INC. 5562 HAMPTON IA
2018-06-18 641-259-8XXX 8000–8999Assigned METROPCS, INC. 5562 MONROE IA
2018-06-18 641-289-9XXX 9000–9999Assigned METROPCS, INC. 5562 LAMONI IA
2018-06-18 641-381-8XXX 8000–8999Assigned METROPCS, INC. 5562 NORTHWOOD IA
2018-06-18 641-666-5XXX 5000–5999Assigned METROPCS, INC. 5562 OSAGE IA
2018-06-18 641-735-7XXX 7000–7999Assigned METROPCS, INC. 5562 BUFFALOCTR IA
2018-06-18 641-843-6XXX 6000–6999Assigned METROPCS, INC. 5562 BRITT IA
2018-06-18 641-892-2XXX 2000–2999Assigned METROPCS, INC. 5562 SHEFFIELD IA
2018-06-15 641-432-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORESTCITY IA
2018-06-15 641-557-2XXX 2000–2999Assigned METROPCS, INC. 5562 NEWHAMPTON IA
2018-06-15 641-925-5XXX 5000–5999Assigned METROPCS, INC. 5562 GARNER IA
2018-06-08 641-387-7XXX 7000–7999Assigned METROPCS, INC. 5562 TOLEDO IA
2018-06-08 641-426-7XXX 7000–7999Assigned METROPCS, INC. 5562 CHARLES CY IA
2018-06-08 641-440-5XXX 5000–5999Assigned METROPCS, INC. 5562 CLEAR LAKE IA
2018-06-08 641-871-7XXX 7000–7999Assigned METROPCS, INC. 5562 KNOXVILLE IA
2018-06-05 641-201-2XXX 2000–2999Assigned METROPCS, INC. 5562 MASON CITY IA
2018-06-05 641-201-9XXX 9000–9999Assigned METROPCS, INC. 5562 MASON CITY IA
2018-06-05 641-351-3XXX 3000–3999Assigned METROPCS, INC. 5562 MARSHALLTN IA
2018-06-05 641-670-9XXX 9000–9999Assigned METROPCS, INC. 5562 OSKALOOSA IA
2018-06-05 641-841-8XXX 8000–8999Assigned METROPCS, INC. 5562 NEWTON IA
2018-06-05 641-980-3XXX 3000–3999Assigned METROPCS, INC. 5562 OTTUMWA IA
2004-08-17 641-204-9XXX 9000–9999Assigned METROPCS, INC. 5562 PELLA 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.