North American Numbers Source-cited · ownership disclosed
Area code
748
In service
United States · since 2025

Fort Collins (overlay)

Area code 748 is an all-services distributed overlay of 970, activated July 7, 2025, to relieve projected 2026 exhaustion across northern and western Colorado.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Fort Collins (overlay)
Type
geographic
Status
in service
In service since
2025
Projected exhaust
2088 Q4

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 748 is

Northern and western Colorado — same geography as 970..

Communities served wholly or partly by 748:

Fort CollinsGreeleyLovelandGrand JunctionDurangoVailAspenSteamboat SpringsGlenwood SpringsMontroseEstes ParkBreckenridge

No 748 central-office codes may be assigned until area code 970 is fully exhausted, so 748 numbers remain in reserve. Re-check NANPA for current assignment status.

B · Relationships

How it relates to other codes

The codes 748 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 · 2025 970 Fort Collins Overlays the entire 970 region; same geography.
What's changing. Overlay — newer code of the 970/748 northern/western Colorado overlay complex; held in reserve until 970 exhausts.
C · History

How 748 got here

2023-12-18
Colorado PUC approved area code 748 as an overlay of 970.
Source: Wikipedia
2025-07-07
The 970/748 overlay complex was activated. Re-check NANPA for first-assignment status.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
14
Prefixes available
786

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

Compare 748 with another code →
Sources
Wikipedia ↗
Area code 748
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.