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 917
OMNIPOINT COMMUNICATIONS, INC. - NY 142
NEW CINGULAR WIRELESS PCS, LLC - DC 136
SPOK, INC. 133
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 123
VERIZON NEW YORK, INC. 66
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
— 917-921 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 917-922 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 917-923 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 917-925 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-926 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-927 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-929 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-930 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-931 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN06 NY
— 917-932 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN15 NY
— 917-934 2XXX3XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-937 1XXX6XXX8XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-939 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 917-940 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-941 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-945 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 917-948 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-949 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-950 not yet reported which blocks → NY
— 917-951 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-952 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 917-953 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 NWYRCYZN01 NY
— 917-954 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-956 not yet reported which blocks → AMERICAN MESSAGING SERVICES, LLC 9748 NWYRCYZN01 NY
— 917-957 not yet reported which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN01 NY
— 917-958 not yet reported which blocks → NY
— 917-959 not yet reported which blocks → NY
— 917-961 not yet reported which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-964 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-965 2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-968 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN07 NY
— 917-969 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN01 NY
— 917-971 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
— 917-972 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN10 NY
— 917-974 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN06 NY
— 917-975 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN06 NY
— 917-976 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX NY
— 917-977 0XXX1XXX2XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-978 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-980 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-981 0XXX1XXX4XXX5XXX7XXX8XXX9XXX which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-988 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-989 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-990 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN06 NY
— 917-991 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 917-992 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 6959 NWYRCYZN01 NY
— 917-995 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → VERIZON NEW YORK, INC. 9104 NWYRCYZN01 NY
— 917-996 not yet reported which blocks → SPOK, INC. 6630 NWYRCYZN01 NY
— 917-999 0–9 XXXall 10 · 4 holders which blocks → ONVOY, LLC- NY 384C NWYRCYZN01 NY

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.