North American Numbers Source-cited · ownership disclosed
Area code
747
In service
United States · since 2009

San Fernando Valley (overlay)

Area code 747 is an all-services overlay on area code 818, serving the San Fernando Valley since 2009. It shares the exact geography of 818.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
San Fernando Valley (overlay)
Type
geographic
Status
in service
In service since
2009
Projected exhaust
2057 Q2

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 747 is

Same territory as area code 818: San Fernando Valley of Los Angeles County plus small parts of Ventura County, California..

Communities served wholly or partly by 747:

BurbankGlendaleVan NuysWoodland HillsCalabasas

Overlay shares the 818 footprint; representative list.

B · Relationships

How it relates to other codes

The codes 747 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 · 2009 818 San Fernando Valley All-services overlay on 818; CPUC approved April 24, 2008, effective May 18, 2009.
What's changing. All-services overlay on 818; ten-digit dialing required.
C · History

How 747 got here

2008-04-24
CPUC approved the 747 overlay plan for the 818 area.
Source: Wikipedia
2009-05-18
Area code 747 overlay became effective; ten-digit dialing required.
Source: Wikipedia
2009-10-11
First 747 number block assigned.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
275
Prefixes available
525
Thousands-blocks assigned
2,505

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

Compare 747 with another code →
Sources
Wikipedia ↗
Area codes 818 and 747
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.