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 469
T-MOBILE USA, INC. 117
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 NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2021-04-06 469-961 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2021-01-29 469-937 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
2020-12-18 469-927 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
2020-11-30 469-924 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2020-08-28 469-880 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2020-08-28 469-882 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2020-08-28 469-883 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2020-08-27 469-876 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
2020-02-19 469-793 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 MCKINNEY TX
2020-01-14 469-756 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2019-10-17 469-743 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 MIDLOTHIAN TX
2019-10-11 469-836 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2019-10-09 469-783 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2019-10-07 469-739 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2019-08-21 469-679 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
2019-08-21 469-686 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2019-01-16 469-592 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2018-12-06 469-588 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2018-09-21 469-558 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
2018-08-29 469-542 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2018-08-20 469-504 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2018-04-17 469-468 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2018-04-17 469-469 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2018-04-05 469-465 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2017-12-04 469-350 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2016-11-03 469-984 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2016-04-07 469-494 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
2016-01-15 469-954 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
2015-11-25 469-987 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2015-11-24 469-982 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2015-11-24 469-988 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
2015-11-24 469-990 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2015-11-13 469-856 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 MIDLOTHIAN TX
2015-11-05 469-427 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2015-10-23 469-970 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
2015-08-27 469-996 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2015-07-07 469-655 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
2014-08-26 469-618 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2014-08-26 469-740 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2014-03-28 469-901 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 WAXAHACHIE TX
2013-12-17 469-612 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 MIDLOTHIAN TX
2013-10-17 469-703 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
2013-06-18 469-353 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 FRISCO TX
2013-03-13 469-510 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2013-02-25 469-509 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 GRANDPRARI TX
2013-02-21 469-345 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 FORNEY TX
2013-01-22 469-478 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ENNIS TX
2012-12-20 469-434 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ROCKWALL TX
2012-12-13 469-410 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 TERRELL TX
2012-11-26 469-336 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 MIDLOTHIAN TX

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.