917
Area code
NY
United States geographic area code, in service since 1992-01-01. Part of the 212/332/646/917, 347/465/718/917/929 overlay complex — ten-digit dialing required.
Split from 212.
Statusin service
Introduced1992-01-01
JurisdictionNY, US
Local dialing1+10D
Time zoneEastern
Last verified2026-09-17
Utilization 100.9% of assignable prefixes assigned
As of 09/17/2026
0%799 of ~792 assignable NXX values (200–999 excl. N11)100%
Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-01-26, most recent 2026-07-10.
Area codes serve rate-center geographies, not municipal boundaries. “NY” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | OMNIPOINT COMMUNICATIONS, INC. - NY | 142 | 17.8% |
| 02 | NEW CINGULAR WIRELESS PCS, LLC - DC | 136 | 17% |
| 03 | SPOK, INC. | 133 | 16.6% |
| 04 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 123 | 15.4% |
| 05 | VERIZON NEW YORK, INC. | 66 | 8.3% |
| 06 | BANDWIDTH.COM CLEC, LLC - NY | 27 | 3.4% |
| 07 | ONVOY, LLC- NY | 21 | 2.6% |
| 08 | METROPCS, INC. | 18 | 2.3% |
| 09 | LEVEL 3 COMMUNICATIONS, LLC - NY | 14 | 1.8% |
| 10 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 11 | 1.4% |
Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.
Change history
Recorded events for this NPA- 1992-01-01Area code 917 entered service (created from 212).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2025-03-26 | PL-630 ↗ | NPA 465 to Overlay NPA 347/718/917/929 (New York) |
| 2015-12-21 | PL-489 ↗ | NPA 332 to Overlay NPAs 212/646/917 (New York) |
| 2010-02-09 | PL-402 ↗ | NPA 929 to Overlay NPA 718/347 (New York) |
| 2002-02-14 | PL-314 ↗ | New York 212/646, 718/347 and 917 Mandatory 10D Dialing Implementation |
| 1991-08-01 | IL-91-08-001 ↗ | NANP-INTRODUCTION OF THE 917 NUMBERING PLAN AREA (NPA) IN NEW YORK CITY AND TRANSFER OF THE BRONX, NEW YORK, FROM THE 212 NPA TO THE 718 NPA |