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
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Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2004-05-21 626-373-3XXX T-MOBILE USA, INC. 6529 COVINA CA
2004-05-21 626-373-4XXX T-MOBILE USA, INC. 6529 COVINA CA
2004-05-21 661-877-2XXX T-MOBILE USA, INC. 6529 SNCA NHCS CA
2004-05-21 760-449-6XXX T-MOBILE USA, INC. 6529 PALM SPG CA
2004-05-21 805-760-8XXX T-MOBILE USA, INC. 6529 OXNARD CA
2004-05-21 808-218-9XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-05-21 808-393-7XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-05-21 808-393-8XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-05-21 808-393-9XXX T-MOBILE USA, INC. 6529 HONOLULU HI
2004-05-21 818-744-1XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-05-21 858-366-3XXX T-MOBILE USA, INC. 6529 LA JOLLA CA
2004-05-20 253-250-6XXX T-MOBILE USA, INC. 6529 TACOMAWVLY WA
2004-05-20 253-250-7XXX T-MOBILE USA, INC. 6529 TACOMAWVLY WA
2004-05-20 254-462-1XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2004-05-19 641-351-8XXX T-MOBILE USA, INC. 6529 MARSHALLTN IA
2004-05-19 702-505-6XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-05-19 702-505-7XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-05-19 775-219-7XXX T-MOBILE USA, INC. 6529 RENO NV
2004-05-18 253-592-0XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-05-18 253-592-1XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-05-18 253-592-2XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-05-18 253-592-3XXX T-MOBILE USA, INC. 6529 TACOMA WA
2004-05-18 310-590-5XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-05-18 310-590-9XXX T-MOBILE USA, INC. 6529 INGLEWOOD CA
2004-05-18 323-302-3XXX T-MOBILE USA, INC. 6529 LSAN DA 13 CA
2004-05-18 360-433-8XXX T-MOBILE USA, INC. 6529 VANCOUVER WA
2004-05-18 818-284-0XXX T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-05-17 415-318-0XXX T-MOBILE USA, INC. 6529 SNFC CNTRL CA
2004-05-17 909-503-3XXX T-MOBILE USA, INC. 6529 COLTON CA
2004-05-17 909-561-1XXX T-MOBILE USA, INC. 6529 FONTANA CA
2004-05-14 760-877-0XXX T-MOBILE USA, INC. 6529 ESCONDIDO CA
2004-05-14 951-552-4XXX T-MOBILE USA, INC. 6529 ARLINGTON CA
2004-05-13 702-785-7XXX T-MOBILE USA, INC. 6529 LAS VEGAS NV
2004-05-12 209-489-1XXX T-MOBILE USA, INC. 6529 MERCED CA
2004-05-12 530-237-6XXX T-MOBILE USA, INC. 6529 MARYSVILLE CA
2004-05-12 714-604-9XXX T-MOBILE USA, INC. 6529 SANTA ANA CA
2004-05-12 773-272-5XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-05-12 773-272-6XXX T-MOBILE USA, INC. 6529 CHICGOZN03 IL
2004-05-12 805-202-1XXX T-MOBILE USA, INC. 6529 ARROYOGRND CA
2004-05-12 805-755-3XXX T-MOBILE USA, INC. 6529 CARPINTRIA CA
2004-05-12 818-675-7XXX T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-05-11 213-284-2XXX T-MOBILE USA, INC. 6529 LSAN DA 07 CA
2004-05-11 213-284-8XXX T-MOBILE USA, INC. 6529 LSAN DA 07 CA
2004-05-11 254-220-7XXX T-MOBILE USA, INC. 6529 KILLEEN TX
2004-05-11 714-468-2XXX T-MOBILE USA, INC. 6529 GARDEN GRV CA
2004-05-11 714-468-3XXX T-MOBILE USA, INC. 6529 GARDEN GRV CA
2004-05-11 815-280-8XXX T-MOBILE USA, INC. 6529 JOLIET IL
2004-05-10 208-695-4XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-05-10 208-695-6XXX T-MOBILE USA, INC. 6529 BOISE ID
2004-05-10 509-741-7XXX T-MOBILE USA, INC. 6529 WENATCHEE WA

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.