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415 Area Code. Location. Time-zone. Toll Free? Scam? Who's Calling?

State California
Timezone Pacific (PT)
Is Area Code 415 Toll Free? No
Major Cities San Francisco

Area code 415 along with 628 are the area codes for the San Francisco Bay area. The NANP or the North American Numbering Plan serving the suburbs in Marin County and San Mateo County.

When did area code 415 come to be?

In 1947 the North American Numbering Plan was installed by AT&T with the state of California being divided into three numbering plans depending on the geographical zones. 415 was given to central California, 916 to southern California and 213 to the northern part.

Numbering plan boundaries were established in 1950 dividing the northern and central parts. 415 therefore became the coastal region while 916 was part of the northeastern corner of the state.

415 encountered a split three times due to the bustling city's economic growth and the rapid proliferation of phone usage. The first split occurred on March 1, 1959 wherein 707 was created for San Jose and South Bay from 408 which has then since been split to 831. September 2, 1991 saw area cpde 510 created for East Bay and on August 2, 1997 650 was created and the boundary was kept between San Francisco and San Mateo County. San Francisco retained 415.

An overlay plan was set on the 21st of February 2015 with 628 as the area code. Overlays are being done in order to combat exhaustion by means of placing another area code together with an existing one to service a specific area.

What areas does area code 415 service?

Area code 415 services most of the San Francisco Bay area namely Marin County and San Mateo County. The cities include Bel Marin Keys, Belvedere, Black Point-Green Point, Bolinas, California Park, Corte Madera, Dogtown, Fairfax,  Greenbrae, Inverness Park, Kentfield, Latunitas-Forest Knolls, Larkspur, Lucas-Valley Marinwood, Manor, Marconi,Marshall, McNears Beach, Nicasio, Novato, Olema, Paradise Cay, Point Reyes Station, Ross, San Anselmo, San Geronimo, San Quentin, San Rafael, Santa Venetia, Sausalito, Sleepy Hollow, Stinson Beach, Tamalpais-Homestead Valley, Tiburon, Woodacre, Brisbane, Daly City.

What time zone does 415 follow?

Since area code 415 services the California area, it therefore adheres to the Pacific Time Zone (PST) which places it at eight hours behind the Coordinated Universal Time (UTC-8:00) and during the summertime it follows Pacific Daylight Time where it is advanced by an hour (UTC-7:00).

This time zone is also observed by some parts of Canada, Mexico and the states of Washington and California along with some parts of Idaho, Alaska, Oregon and Nevada. PST is observed during early November to mid March while PDT is observed in mid March to early November.

How do I call up a 415 number?

For the longest time San Francisco was one of the places to have a seven number dialing scheme but in 2015 a ten digit dialing scheme was implemented meaning that you had to key in a 1+area code+number to get your call across.

Is area code 415 toll free?

No area code 415 is not toll free.

Is area code 415 a scam?

There have been some recent scams circulating in which the callers would pretend to be members of the IRS claiming that their victims owed them money and threatening arrest if money wasn’t handed over immediately. Certain area codes including 415 are being used for scamming.

When called up by what seems to be a scammer, hang up immediately and report the number to the authorities, blocking it as well. Do not pick up phone calls from unknown or unfamiliar numbers to be safe.



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