NumberResearch Membership · Data 2026-04

Recent thousands-block assignments

76 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 2026-04

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. 76
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
2004-02-06 773-787-8XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-02-06 773-981-3XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-02-06 773-981-4XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-02-06 773-981-5XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-02-06 773-981-7XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-02-06 773-981-8XXX T-MOBILE USA, INC. 6529 CHICGOZN10 IL
2004-02-06 775-342-7XXX T-MOBILE USA, INC. 6529 RENO NV
2004-02-04 214-278-4XXX T-MOBILE USA, INC. 6529 GRANDPRARI TX
2004-02-04 216-255-1XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2004-02-04 216-255-2XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2004-02-04 224-629-8XXX T-MOBILE USA, INC. 6529 ELGIN IL
2004-02-04 309-868-1XXX T-MOBILE USA, INC. 6529 PEORIA IL
2004-02-04 309-868-2XXX T-MOBILE USA, INC. 6529 PEORIA IL
2004-02-04 415-568-6XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-02-04 415-568-7XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-02-04 708-221-3XXX T-MOBILE USA, INC. 6529 RIVERSIDE IL
2004-02-04 773-715-2XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-02-04 773-828-2XXX T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2004-02-04 847-941-2XXX T-MOBILE USA, INC. 6529 WHEELING IL
2004-02-03 808-232-8XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-02-03 808-232-9XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-02-02 310-547-7XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-02-02 608-397-6XXX T-MOBILE USA, INC. 6529 LA CROSSE WI
2004-01-29 219-309-8XXX T-MOBILE USA, INC. 6529 VALPARAISO IN
2004-01-29 219-981-7XXX T-MOBILE USA, INC. 6529 GARY IN
2004-01-29 310-707-6XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-01-29 323-943-8XXX T-MOBILE USA, INC. 6529 LSAN DA 05 CA
2004-01-29 480-558-6XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-01-29 480-567-2XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-01-29 480-567-5XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-01-29 480-567-6XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-01-29 480-567-8XXX T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-01-29 501-442-0XXX T-MOBILE USA, INC. 6529 LITTLEROCK AR
2004-01-29 501-442-1XXX T-MOBILE USA, INC. 6529 LITTLEROCK AR
2004-01-29 512-269-8XXX T-MOBILE USA, INC. 6529 TAYLOR TX
2004-01-29 520-234-4XXX T-MOBILE USA, INC. 6529 SIERRAVIST AZ
2004-01-29 707-360-5XXX T-MOBILE USA, INC. 6529 SANTA ROSA CA
2004-01-29 773-957-5XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-01-29 773-957-6XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-01-29 847-385-8XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-01-29 847-754-0XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-01-29 903-275-7XXX T-MOBILE USA, INC. 6529 ATHENS TX
2004-01-29 916-529-9XXX T-MOBILE USA, INC. 6529 SCRM MAIN CA
2004-01-28 312-731-1XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-01-28 312-731-2XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-01-28 435-862-5XXX T-MOBILE USA, INC. 6529 ST GEORGE UT
2004-01-28 630-607-2XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2004-01-28 630-607-4XXX T-MOBILE USA, INC. 6529 ELMHURST IL
2004-01-28 630-723-4XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-01-28 760-686-3XXX T-MOBILE USA, INC. 6529 VICTORVL CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.