NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

66 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
T-MOBILE USA, INC. 66
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
AssignedBlockAssigneeOCNRate centerState
2006-10-26 641-843-8XXX T-MOBILE USA, INC. 6529 BRITT IA
2006-10-26 909-680-5XXX T-MOBILE USA, INC. 6529 CHINO CA
2006-10-25 847-660-0XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-10-25 847-660-9XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2006-10-25 928-681-7XXX T-MOBILE USA, INC. 6529 KINGMAN AZ
2006-10-24 580-715-9XXX T-MOBILE USA, INC. 6529 CLINTON OK
2006-10-24 580-890-9XXX T-MOBILE USA, INC. 6529 WEATHERFD OK
2006-10-24 970-518-1XXX T-MOBILE USA, INC. 6529 GREELEY CO
2006-10-23 330-261-4XXX T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2006-10-23 425-245-3XXX T-MOBILE USA, INC. 6529 HALLS LAKE WA
2006-10-23 575-691-9XXX T-MOBILE USA, INC. 6529 HOBBS NM
2006-10-23 618-709-0XXX T-MOBILE USA, INC. 6529 GRANITE CY IL
2006-10-23 909-583-5XXX T-MOBILE USA, INC. 6529 REDLANDS CA
2006-10-20 210-896-4XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-10-20 210-896-5XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-10-20 210-896-6XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-10-20 210-896-7XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-10-20 210-896-8XXX T-MOBILE USA, INC. 6529 SANANTONIO TX
2006-10-20 310-819-6XXX T-MOBILE USA, INC. 6529 CMTN GRDN CA
2006-10-20 314-556-3XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-10-20 314-556-4XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-10-20 425-791-0XXX T-MOBILE USA, INC. 6529 EVERETT WA
2006-10-20 425-791-1XXX T-MOBILE USA, INC. 6529 EVERETT WA
2006-10-20 425-791-2XXX T-MOBILE USA, INC. 6529 EVERETT WA
2006-10-20 530-216-9XXX T-MOBILE USA, INC. 6529 MARYSVILLE CA
2006-10-20 847-810-9XXX T-MOBILE USA, INC. 6529 LAKEFOREST IL
2006-10-20 870-292-5XXX T-MOBILE USA, INC. 6529 HOPE AR
2006-10-19 512-749-7XXX T-MOBILE USA, INC. 6529 SAN MARCOS TX
2006-10-19 512-749-8XXX T-MOBILE USA, INC. 6529 SAN MARCOS TX
2006-10-19 562-222-9XXX T-MOBILE USA, INC. 6529 PICORIVERA CA
2006-10-19 630-888-9XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-10-19 682-561-7XXX T-MOBILE USA, INC. 6529 ARLINGTON TX
2006-10-19 682-564-2XXX T-MOBILE USA, INC. 6529 ARLINGTON TX
2006-10-19 682-564-3XXX T-MOBILE USA, INC. 6529 ARLINGTON TX
2006-10-19 682-564-4XXX T-MOBILE USA, INC. 6529 ARLINGTON TX
2006-10-19 720-532-3XXX T-MOBILE USA, INC. 6529 DENVER CO
2006-10-19 720-532-6XXX T-MOBILE USA, INC. 6529 DENVER CO
2006-10-19 831-540-9XXX T-MOBILE USA, INC. 6529 SALINAS CA
2006-10-18 217-597-4XXX T-MOBILE USA, INC. 6529 DANVILLE IL
2006-10-18 915-540-1XXX T-MOBILE USA, INC. 6529 EL PASO TX
2006-10-18 915-540-3XXX T-MOBILE USA, INC. 6529 EL PASO TX
2006-10-18 915-540-4XXX T-MOBILE USA, INC. 6529 EL PASO TX
2006-10-18 915-540-5XXX T-MOBILE USA, INC. 6529 EL PASO TX
2006-10-18 920-264-4XXX T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-10-18 920-264-5XXX T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-10-18 920-264-6XXX T-MOBILE USA, INC. 6529 GREEN BAY WI
2006-10-17 253-389-9XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-10-17 309-502-1XXX T-MOBILE USA, INC. 6529 GENESEO IL
2006-10-17 323-652-6XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2006-10-17 323-652-7XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA

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.