North American Numbers Source-cited · ownership disclosed
Area code
786
In service
United States · since 1998

Miami (overlay)

Area code 786 is an overlay of 305, installed on March 1, 1998, serving the same Miami-Dade County territory; Monroe County (Florida Keys) was added in 2001.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Miami (overlay)
Type
geographic
Status
in service
In service since
1998
Projected exhaust
2046 Q3

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 786 is

Miami-Dade County and Monroe County (the Florida Keys).

Communities served wholly or partly by 786:

MiamiMiami BeachHialeahCoral Gables

Shares geography with 305; representative cities only.

B · Relationships

How it relates to other codes

The codes 786 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 · 1998 305 Miami Overlays the same area as 305; installed March 1, 1998.
Overlay · 2023 645 Miami (overlay) Later third overlay sharing the same Miami-Dade/Monroe geography.
What's changing. Active overlay of 305 (co-overlaid with 645) covering Miami-Dade and Monroe County.
C · History

How 786 got here

1998-03-01
Area code 786 installed as an overlay on Miami-Dade County.
Source: Wikipedia: Area code 786
2001-09-01
Monroe County added to area code 786.
Source: Wikipedia: Area code 786
D · Capacity

How full it is

Prefixes assigned
800
Prefixes available
0
Thousands-blocks assigned
6,142

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

Compare 786 with another code →
Sources
Wikipedia ↗
Area code 786
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.