NumberResearch Membership · Data 09/20/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, all time — NPA 949
T-MOBILE USA, INC. 69
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2026-04-29 949-897 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2026-01-06 949-948 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2025-10-17 949-602 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2025-09-24 949-883 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2025-07-28 949-875 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2024-10-23 949-847 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2024-10-09 949-840 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2024-09-19 949-839 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2024-08-20 949-821 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2024-07-30 949-820 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2023-10-10 949-803 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2023-08-24 949-796 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2023-08-17 949-792 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2023-07-13 949-213 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2023-07-13 949-775 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 SADLBK VLY CA
2023-01-11 949-712 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 SADLBK VLY CA
2022-09-20 949-731 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2022-01-11 949-685 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 SADLBK VLY CA
2021-12-02 949-227 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2021-04-24 949-687 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2021-04-12 949-665 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2020-08-13 949-594 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 LAGUNA BCH CA
2019-08-19 949-615 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 TRABUCO CA
2019-08-07 949-591 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2019-04-12 949-691 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2019-02-15 949-550 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2016-04-01 949-506 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2015-09-22 949-299 0–9 XXXall 10 · 7 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2015-04-23 949-532 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SADLBK VLY CA
2015-01-12 949-524 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2014-10-02 949-656 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2014-04-11 949-531 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2013-09-05 949-247 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2013-06-03 949-396 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2012-08-03 949-245 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2011-12-13 949-332 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2006-09-18 949-732 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2006-01-26 949-748 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2002-09-20 949-690 4XXX which blocks → T-MOBILE USA, INC. 6529 SADLBK VLY CA
2002-09-20 949-742 3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 TRABUCO CA
2002-09-20 949-903 7XXX which blocks → T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2002-02-21 949-350 not yet reported which blocks → T-MOBILE USA, INC. 6529 RNCHOVIEJO CA
2001-12-28 949-295 not yet reported which blocks → T-MOBILE USA, INC. 6529 LAGUNA BCH CA
2001-12-28 949-310 not yet reported which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2001-11-30 949-596 0–9 XXXall 10 · 7 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2001-09-19 949-394 not yet reported which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2001-07-17 949-254 none assigned yet which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
2001-05-18 949-456 2XXX3XXX4XXX8XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2001-02-22 949-232 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 IRVINE CA
— 949-201 0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 CAPITRNVLY CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.