North American Numbers Source-cited · ownership disclosed
Area code
315
In service
United States · since 1947

Syracuse / North-Central NY

Serves north-central New York including Syracuse, Utica and Watertown, from Wayne County east to Massena and north to the Canadian border.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Syracuse / North-Central NY
Type
geographic
Status
in service
In service since
1947
Projected exhaust
2056 Q1

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 315 is

North-central New York State.

Communities served wholly or partly by 315:

SyracuseUticaWatertownRomeAuburnOswegoMassenaCortland

Representative; the NPA spans 18 counties.

B · Relationships

How it relates to other codes

The codes 315 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Spawned · 1954 607 Southern Tier Southern portion (Binghamton area) split off to form 607.
Overlay · 2017 680 North-Central NY (overlay) 680 added March 11, 2017 as the first upstate overlay.
What's changing. Overlaid by 680 across the same 18-county region; ten-digit dialing required.
C · History

How 315 got here

1947
One of the original area codes, covering central NY from the Canadian border south to Pennsylvania.
Source: Wikipedia 315/680
1954
Southern portion split off to create 607 (with part of 716).
Source: Wikipedia 315/680
2017-03-11
680 overlay introduced — the first overlay in upstate New York.
Source: Wikipedia 315/680
D · Capacity

How full it is

Prefixes assigned
800
Prefixes available
0
Thousands-blocks assigned
4,246

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 315 with another code →
Sources
Wikipedia (secondary) ↗
Area codes 315 and 680
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.