Enter a number in E.164 format (for example +441952612345)
The prefix +1 7603 serves the region of California.
Our database lists the carrier as "AT&T (regional incumbents)".
Coordinates for +1 7603 are (36.7014631, -118.755997).
Use this area-code page to access location, carrier, and prefix info for partial phone numbers.
Country: 🇺🇸 United States / Canada
Country Code: +1
Carrier: AT&T (regional incumbents)
Prefix: 7603
Location: California
Coords: 36.7014631, -118.755997
Area Code Page: +1 7603
Comments: Disabled for area-code pages
Example: +1 7603 *** ***
If you have a full number, use the search box above to view the number-specific page.
+1 7603 is an area code/prefix that appears to be associated with California. It may be assigned to multiple phone numbers within that region.
Yes — use Ringbat's number search to look up a full number. This area-code page helps when only part of a number is known.
Carrier information for this prefix: AT&T (regional incumbents). In some cases multiple carriers may use similar prefixes.
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