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
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Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2004-10-22 909-714-3XXX T-MOBILE USA, INC. 6529 FONTANA CA
2004-10-22 920-390-1XXX T-MOBILE USA, INC. 6529 WATERTOWN WI
2004-10-22 972-786-3XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-10-22 972-786-4XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-10-22 972-786-5XXX T-MOBILE USA, INC. 6529 IRVING TX
2004-10-21 254-285-8XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2004-10-21 254-733-4XXX T-MOBILE USA, INC. 6529 WACO TX
2004-10-21 310-514-6XXX T-MOBILE USA, INC. 6529 SAN PEDRO CA
2004-10-21 312-752-0XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-10-21 312-752-8XXX T-MOBILE USA, INC. 6529 CHICGOZN01 IL
2004-10-21 815-272-3XXX T-MOBILE USA, INC. 6529 JOLIET IL
2004-10-20 541-570-2XXX T-MOBILE USA, INC. 6529 LEBANON OR
2004-10-19 630-873-0XXX T-MOBILE USA, INC. 6529 LOMBARD IL
2004-10-19 714-220-7XXX T-MOBILE USA, INC. 6529 CYPRESS CA
2004-10-19 714-220-8XXX T-MOBILE USA, INC. 6529 CYPRESS CA
2004-10-19 773-822-1XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-10-19 773-822-2XXX T-MOBILE USA, INC. 6529 CHICGOZN06 IL
2004-10-19 815-608-4XXX T-MOBILE USA, INC. 6529 ROCKFORD IL
2004-10-18 209-242-1XXX T-MOBILE USA, INC. 6529 STOCKTON CA
2004-10-18 209-640-7XXX T-MOBILE USA, INC. 6529 TRACY CA
2004-10-18 216-258-5XXX T-MOBILE USA, INC. 6529 CLEVELAND OH
2004-10-18 562-298-3XXX T-MOBILE USA, INC. 6529 WHITTIER CA
2004-10-18 573-586-0XXX T-MOBILE USA, INC. 6529 FTLENARDWD MO
2004-10-18 619-817-7XXX T-MOBILE USA, INC. 6529 SNDG SNDG CA
2004-10-18 626-200-7XXX T-MOBILE USA, INC. 6529 PSDN PSDN CA
2004-10-18 707-360-8XXX T-MOBILE USA, INC. 6529 SANTA ROSA CA
2004-10-18 714-230-9XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-10-18 714-908-6XXX T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-10-18 818-270-6XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-10-18 847-666-7XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-10-18 847-666-8XXX T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-10-18 909-586-2XXX T-MOBILE USA, INC. 6529 RIALTO CA
2004-10-18 925-300-5XXX T-MOBILE USA, INC. 6529 WALNUT CRK CA
2004-10-18 951-329-2XXX T-MOBILE USA, INC. 6529 RIVERSIDE CA
2004-10-15 310-602-9XXX T-MOBILE USA, INC. 6529 LOMITA CA
2004-10-15 314-620-5XXX T-MOBILE USA, INC. 6529 KIRKWOOD MO
2004-10-15 323-370-5XXX T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2004-10-15 323-370-9XXX T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2004-10-15 541-337-2XXX T-MOBILE USA, INC. 6529 EUGENE OR
2004-10-15 562-215-1XXX T-MOBILE USA, INC. 6529 NORWALK CA
2004-10-15 619-737-6XXX T-MOBILE USA, INC. 6529 CHULAVISTA CA
2004-10-15 630-618-7XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-10-15 630-618-8XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-10-15 630-618-9XXX T-MOBILE USA, INC. 6529 AURORA IL
2004-10-15 714-224-9XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-262-7XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-326-9XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-331-0XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-331-4XXX T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-10-15 714-331-6XXX T-MOBILE USA, INC. 6529 ANAHEIM 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.