363
Area code
NY
United States geographic area code, in service since 2023-01-20. Part of the 363/516 overlay complex — ten-digit dialing required.
Statusin service
Introduced2023-01-20
JurisdictionNY, US
Local dialing10D
Time zoneEastern
Last verified2026-09-17
Utilization 6.6% of assignable prefixes assigned
As of 09/17/2026
0%52 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 2023-12-15, most recent 2026-07-28.
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 | ONVOY, LLC- NY | 11 | 21.2% |
| 02 | MULTIPLE OCN LISTING | 9 | 17.3% |
| 03 | NEW CINGULAR WIRELESS PCS, LLC - DC | 6 | 11.5% |
| 04 | 5 | 9.6% | |
| 05 | ONVOY SPECTRUM, LLC | 4 | 7.7% |
| 06 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 4 | 7.7% |
| 07 | BANDWIDTH.COM CLEC, LLC - NY | 4 | 7.7% |
| 08 | YORKSTREAM COMMUNICATIONS LLC | 2 | 3.8% |
| 09 | WIDE VOICE, LLC - NY | 2 | 3.8% |
| 10 | SHELCOMM | 1 | 1.9% |
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- 2022-02-17 NPA 363 to Overlay NPA 516 (New York)
- 2023-01-20Area code 363 entered service (created from 516).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2022-02-17 | PL-581 ↗ | NPA 363 to Overlay NPA 516 (New York) |