NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 714
T-MOBILE USA, INC. 56
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
2015-03-09 714-949 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
2015-02-23 714-909 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SILVERADO CA
2014-01-24 714-804 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 BREA CA
2013-06-28 714-340 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 YORBALINDA CA
2013-06-24 714-592 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 BREA CA
2012-04-28 714-853 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 FULLERTON CA
2011-07-22 714-576 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 BUENA PARK CA
2007-08-29 714-495 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2007-03-23 714-759 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 CYPRESS CA
2007-02-24 714-487 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-11-09 714-616 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2006-09-21 714-548 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-03-28 714-725 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
2006-03-13 714-858 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-12-14 714-855 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-09-15 714-873 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-09-08 714-837 0–9 XXXall 10 · 2 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
2002-11-22 714-728 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2002-11-22 714-757 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2002-10-17 714-588 7XXX which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2002-10-17 714-623 7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
2002-10-17 714-675 4XXX6XXX7XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
2002-10-17 714-797 7XXX which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2002-09-19 714-717 not yet reported which blocks → T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2002-09-09 714-726 not yet reported which blocks → T-MOBILE USA, INC. 6529 FULLERTON CA
2002-02-22 714-580 1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2001-12-27 714-553 not yet reported which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2001-09-19 714-724 not yet reported which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
2001-05-18 714-493 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
2001-04-25 714-657 0–9 XXXall 10 · 6 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
2001-04-17 714-391 0–9 XXXwhole prefix which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-200 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
— 714-209 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 CYPRESS CA
— 714-225 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-232 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 BUENA PARK CA
— 714-234 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-261 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 YORBALINDA CA
— 714-331 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-333 5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-348 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-360 0–9 XXXall 10 · 3 holders which blocks → T-MOBILE USA, INC. 6529 SANTA ANA CA
— 714-381 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-396 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-404 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-464 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 ORANGE CA
— 714-618 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 ANAHEIM CA
— 714-622 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
— 714-653 0–9 XXXall 10 · 4 holders which blocks → T-MOBILE USA, INC. 6529 WESTMINSTR CA
— 714-707 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 SILVERADO CA
— 714-723 0–9 XXXall 10 · 5 holders which blocks → T-MOBILE USA, INC. 6529 CYPRESS CA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.