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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2006-07-18 323-599-9XXX T-MOBILE USA, INC. 6529 LSAN DA 09 CA
2006-07-18 513-544-0XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-07-18 513-923-8XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-07-18 513-981-1XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-07-18 513-981-8XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-07-18 513-981-9XXX T-MOBILE USA, INC. 6529 CINCINNATI OH
2006-07-18 520-233-0XXX T-MOBILE USA, INC. 6529 CASAGRANDE AZ
2006-07-18 714-769-0XXX T-MOBILE USA, INC. 6529 ORANGE CA
2006-07-18 760-475-1XXX T-MOBILE USA, INC. 6529 VICTORVL CA
2006-07-18 760-972-0XXX T-MOBILE USA, INC. 6529 INDIO CA
2006-07-18 760-972-1XXX T-MOBILE USA, INC. 6529 INDIO CA
2006-07-18 801-634-0XXX T-MOBILE USA, INC. 6529 SALT LAKE UT
2006-07-18 858-380-9XXX T-MOBILE USA, INC. 6529 SNDG LVTA CA
2006-07-18 909-520-7XXX T-MOBILE USA, INC. 6529 S BERNDINO CA
2006-07-18 928-225-7XXX T-MOBILE USA, INC. 6529 FLAGSTAFF AZ
2006-07-17 209-663-6XXX T-MOBILE USA, INC. 6529 LODI CA
2006-07-17 219-671-6XXX T-MOBILE USA, INC. 6529 CROWNPOINT IN
2006-07-17 219-671-7XXX T-MOBILE USA, INC. 6529 CROWNPOINT IN
2006-07-17 224-944-9XXX T-MOBILE USA, INC. 6529 WAUKEGAN IL
2006-07-17 304-699-9XXX T-MOBILE USA, INC. 6529 PRKRSBGZN1 WV
2006-07-17 310-591-4XXX T-MOBILE USA, INC. 6529 SNMN MRVS CA
2006-07-17 314-898-6XXX T-MOBILE USA, INC. 6529 ST LOUIS MO
2006-07-17 530-748-6XXX T-MOBILE USA, INC. 6529 PLVL WEST CA
2006-07-17 618-203-8XXX T-MOBILE USA, INC. 6529 CARBONDALE IL
2006-07-17 619-319-0XXX T-MOBILE USA, INC. 6529 CORONADO CA
2006-07-17 630-340-0XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-07-17 630-340-1XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-07-17 630-340-2XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-07-17 630-340-9XXX T-MOBILE USA, INC. 6529 AURORA IL
2006-07-17 630-589-7XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2006-07-17 630-835-5XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2006-07-17 719-209-8XXX T-MOBILE USA, INC. 6529 COLORDOSPG CO
2006-07-17 760-477-3XXX T-MOBILE USA, INC. 6529 VISTA CA
2006-07-17 808-343-7XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2006-07-17 808-343-8XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2006-07-17 808-343-9XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2006-07-17 814-853-1XXX T-MOBILE USA, INC. 6529 MEADVILLE PA
2006-07-17 909-362-0XXX T-MOBILE USA, INC. 6529 HIGHLAND CA
2006-07-17 909-589-9XXX T-MOBILE USA, INC. 6529 CRESTLINE CA
2006-07-17 928-566-7XXX T-MOBILE USA, INC. 6529 LKHAVASUCY AZ
2006-07-17 937-838-4XXX T-MOBILE USA, INC. 6529 DAYTON OH
2006-07-17 937-838-5XXX T-MOBILE USA, INC. 6529 DAYTON OH
2006-07-17 949-748-0XXX T-MOBILE USA, INC. 6529 IRVINE CA
2006-07-17 971-998-9XXX T-MOBILE USA, INC. 6529 PORTLAND OR
2006-07-14 224-238-9XXX T-MOBILE USA, INC. 6529 ELGIN IL
2006-07-14 224-436-5XXX T-MOBILE USA, INC. 6529 LAKEFOREST IL
2006-07-14 253-330-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-07-14 253-330-1XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-07-14 253-330-6XXX T-MOBILE USA, INC. 6529 TACOMA WA
2006-07-14 253-330-9XXX T-MOBILE USA, INC. 6529 TACOMA WA

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.