North American Numbers Source-cited · ownership disclosed
Area code
321
In service
United States · since 1999

Space Coast / Orlando

Area code 321 covers Florida's Space Coast (Brevard County) and overlays the Orlando 407 area. The digits 3-2-1 reference the Cape Canaveral launch countdown.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Space Coast / Orlando
Type
geographic
Status
in service
In service since
1999
Projected exhaust
2051 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 321 is

East-central Florida / Space Coast plus the Orlando metro.

Communities served wholly or partly by 321:

Cape CanaveralMelbourneTitusvilleOrlando

Brevard/Space Coast is the standalone area; Orlando via the 407 overlay portion.

B · Relationships

How it relates to other codes

The codes 321 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 · 2000 407 Orlando Activated 2000 as an overlay for the Orlando (407) area; the Brevard portion is a standalone split from 407.
Related · 2019 689 Orlando (overlay) 689 overlays 407 but not the standalone 321/Brevard area.
What's changing. Overlay/split arrangement with 407; ten-digit dialing mandatory since Oct 24, 2021; 321 assignments now primarily tied to Brevard County.
C · History

How 321 got here

1999
Area code 321 introduced; petitioned by American Space Museum volunteer Robert Osband, referencing the launch countdown.
Source: Wikipedia: Area code 321
2000
Activated as an overlay for the Orlando area (Brevard County split from 407).
Source: Wikipedia: Area code 321
2021-10-24
Ten-digit dialing became mandatory.
Source: Wikipedia: Area code 321
D · Capacity

How full it is

Prefixes assigned
515
Prefixes available
285
Thousands-blocks assigned
3,278

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

Compare 321 with another code →
Sources
Wikipedia ↗
Area code 321
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.