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 505
QWEST CORPORATION 184
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 98
NEW CINGULAR WIRELESS PCS, LLC 77
T-MOBILE USA, INC. 65
ONVOY, LLC - NM 54
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
— 505-891 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-892 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-893 none assigned yet which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-896 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-897 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-898 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-899 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-911 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NM
— 505-913 2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → METROPCS, INC. 5562 SANTA FE NM
— 505-920 not yet reported which blocks → T-MOBILE USA, INC. 6529 SANTA FE NM
— 505-922 5XXX which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-923 0XXX which blocks → LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 7457 ALBUQURQUE NM
— 505-924 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-925 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-927 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ESPANOLA NM
— 505-929 5XXX6XXX8XXX9XXX · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 ESPANOLA NM
— 505-930 3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 SANTA FE NM
— 505-933 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALBUQURQUE NM
— 505-934 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALBUQURQUE NM
— 505-938 not yet reported which blocks → LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 7457 ALBUQURQUE NM
— 505-939 not yet reported which blocks → TELEBEEPER OF NEW MEXICO 6749 ALBUQURQUE NM
— 505-944 3XXX5XXX6XXX · 2 holders which blocks → LEVEL 3 TELECOM OF NEW MEXICO, LLC - NM 7457 ALBUQURQUE NM
— 505-946 7XXX8XXX which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-949 not yet reported which blocks → SELECTPATH, INC. 6756 ALBUQURQUE NM
— 505-950 not yet reported which blocks → NM
— 505-951 not yet reported which blocks → SELECTPATH, INC. 6756 ALBUQURQUE NM
— 505-954 1XXX which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-955 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-958 not yet reported which blocks → NM
— 505-959 not yet reported which blocks → NM
— 505-962 2XXX which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-966 3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-968 not yet reported which blocks → SELECTPATH, INC. 6756 ALBUQURQUE NM
— 505-969 not yet reported which blocks → SELECTPATH, INC. 6756 ALBUQURQUE NM
— 505-971 not yet reported which blocks → SELECTPATH, INC. 6756 ALBUQURQUE NM
— 505-975 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ALBUQURQUE NM
— 505-976 not yet reported which blocks → NM
— 505-977 3XXX8XXX9XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALBUQURQUE NM
— 505-979 5XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 GALLUP NM
— 505-980 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM 6573 ALBUQURQUE NM
— 505-982 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-983 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-984 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-986 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-988 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-989 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-991 none assigned yet which blocks → T-MOBILE USA, INC. 6529 ALBUQURQUE NM
— 505-992 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM
— 505-994 not yet reported which blocks → QWEST CORPORATION 9636 ALBUQURQUE NM
— 505-995 not yet reported which blocks → QWEST CORPORATION 9636 SANTA FE NM

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.