North American area code +1 415 is San Francisco CA and most of Marin County, plus a small part of San Mateo County.
Effective March 21, 2015, area code 628 will be added as an overlay on 415, serving the same communities. Existing telephone numbers in area code 415 will not change; however, you will have to dial 1+area code+number for all calls to, from, or within the 415/628 area.
San Quentin is located in area code +1 415.
North American area code +1 415 is San Francisco, California.
The 415-314 prefix is in San Francisco, CA.
Area code 415 serves most of San Francisco and Marin County, California, plus a small part of northern San Mateo County. The 415-601 prefix is assigned to San Francisco.
The country code and area code of Nueva Carrara, Uruguay is 598, (0)415.
The country code and area code of Dandong- LN, China is 86, (0)415.
There are several area codes which cover the state of California, such as 213 for downtown Los Angeles. Similarly, much of San Francisco is covered by the area code 415.
415=sf,ca ======= 415 is the area code for San Francisco, CA there is 8 hrs time difference between San Francisco and UK. =======
The country code and area code of Kamchatka region, Russian Federation is 7, (8)415.
In North America (USA, Canada, etc.), telephone area code 628 has been assigned as an overlay on area code 415, serving San Francisco, California, and most of Marin County. The overlay will take effect on March 21, 2015. Existing telephone numbers in area code 415 will not change; however, you will have to dial 1+area code+number for all calls to, from, or within the 415/628 area. The overlay code 628 was originally assigned in 1999, but was postponed until 2015.
Area code 415 serves San Francisco and Marin County, California, but there is no 138 prefix. Telephone prefixes in North America (USA, Canada, etc.) cannot begin with 1.
Probably 415.