North American Numbers Source-cited · ownership disclosed
Area code
680
In service
United States · since 2017

North-Central NY (overlay)

All-service overlay of area code 315, serving Syracuse, Utica, Watertown and north-central New York. The first overlay in upstate New York.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
North-Central NY (overlay)
Type
geographic
Status
in service
In service since
2017
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 680 is

North-central New York State.

Communities served wholly or partly by 680:

SyracuseUticaWatertownRomeOswego

Shares 315's 18-county footprint.

B · Relationships

How it relates to other codes

The codes 680 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?

Overlay · 2017 315 Syracuse / North-Central NY Overlays all of 315.
What's changing. Active overlay of 315 across north-central NY; ten-digit dialing required.
C · History

How 680 got here

2017-03-11
Introduced as an overlay of 315 — the first overlay in upstate NY.
Source: Wikipedia 315/680
D · Capacity

How full it is

Prefixes assigned
227
Prefixes available
573
Thousands-blocks assigned
1,522

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

Compare 680 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.