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 212
TC SYSTEMS, INC. - NY 50
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
— 212-209 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-277 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-284 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-322 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-329 5XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-331 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-336 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-372 7XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-413 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-435 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-438 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-444 1XXX2XXX7XXX8XXX9XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-453 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-461 0XXX1XXX3XXX4XXX6XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-471 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-478 none assigned yet which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-479 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-497 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-515 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-518 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-589 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-590 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-601 9XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-671 0XXX1XXX2XXX3XXX4XXX · 4 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-699 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-729 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-731 4XXX8XXX9XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-733 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-738 0XXX3XXX9XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-771 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-796 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-798 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-801 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-803 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-805 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-817 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-822 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-823 0XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-824 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-835 9XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-845 9XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-849 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-857 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-863 9XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-882 1XXX which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-894 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-895 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-896 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-913 0XXX9XXX · 2 holders which blocks → TC SYSTEMS, INC. - NY 7140 NWYRCYZN01 NY
— 212-963 not yet reported which blocks → TC SYSTEMS, INC. - NY 7140 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.