List of AC Transit routes


AC Transit operates 155 bus lines throughout the East Bay, including two FLEX lines and two Broadway Shuttle lines. While AC Transit administers Dumbarton Express, it transferred operation of those lines to MV Transportation effective 19 December 2011. Extensive local service connects 15 cities in Alameda and Contra Costa Counties and Milpitas in Santa Clara County. Transbay service is provided to San Francisco, San Mateo County, and Palo Alto in Santa Clara County.

Route summary

AC Transit bus routes are arranged in seven categories. Since its inception in 1960, AC Transit has used both numbers and letters to distinguish routes. Many Transbay rail lines were inherited from the Key System and converted to bus routes, and AC Transit continued to use letters to identify the routes. Many Transbay routes continue to follow the original Key System alignments to some degree. The number and letter ranges listed below do not mean that all numbers or letters within a range are in use.
Numbered routes operate within the East Bay:
One- and two-digit route numbers are sometimes used as a "base" number for three-digit route numbers. For example, Route 339 is "based" on Route 39.
Lettered routes provide Transbay service between the East Bay and San Francisco, San Mateo, and Santa Clara Counties.
Suffixes are used to distinguish variations in route alignments. Currently, A, B, C, L, M, R, S, and X are used. Some suffixes have specific meanings:
Supplemental numerical suffixes are used to differentiate route variations for lines that already use a lettered suffix. This is the case with the NX lines listed above.
Note: Routes listed below are current as of 19 January 2019.

Local service

These routes serve various cities, towns, and attractions in Alameda and Contra Costa Counties. One route also serves Milpitas in Santa Clara County. Several routes provide deviations on select trips, where a bus serves a particular business or school that is not on the regular route.
Historically, Route 51 has been considered the busiest bus route in the East Bay, connecting the cities of Berkeley, Oakland, and Alameda. However, this route was split into Routes 51A and 51B in March 2010.
In early 2015, following several rounds of community meetings, AC Transit announced a proposal for a radical rerouting and redesignation of many lines throughout their service area due to extra funds made available by the passage of Measure BB in November 2014. Called AC Go, the program looks at redesigning bus lines throughout the system to reflect the changing traveling habits of its residents by providing more frequent service on its busiest lines while rerouting others to better serve adjoining communities.
Notes:
For an explanation of bus rapid transit, click here.
There is one Rapid route operated by AC Transit.
These routes provide the following amenities and features:
The Broadway Shuttle, also known as The Free B, is a free shuttle service operating along Broadway in downtown Oakland as part of the Meet Downtown Oakland program. Service is operated by AC Transit under contract with the City of Oakland. Funding is provided by the City of Oakland, Alameda County Transportation Commission, and Bay Area Air Quality Management District with additional sponsorships from Jack London Square, Jack London Improvement District, Downtown Oakland Association, and Lake Merritt-Uptown District Association.
The Broadway Shuttle began in August 2010 and was expanded twice, first in July 2011 and again in December 2014. Late-night Friday and all Saturday service was discontinued in August 2017. The B operates two routes:

Special service

Several special service routes, numbered between 300 and 399, cater to various purposes:
In 2016, AC Transit started operating two FLEX services that provide on-demand van service to riders in Castro Valley and Newark. These services require passengers to book their trips online, using a smartphone app, or by telephone, and vans arrive within 30 minutes after the reservation is made. Customers boarding at a BART station do not need to reserve a trip and can just tell the operator their final destination. Fares are identical to the local fares, and Clipper cards are accepted. These services operate Mondays to Fridays from 6am to 8pm.
RouteBART TerminalDeparture TimesCommunities ServedService Notes
Castro ValleyCastro ValleyHourly at :30 pastCastro ValleyOperated alongside former Route 48, with expanded service to surrounding neighborhoods in northern Castro Valley
North NewarkUnion CityEvery 30 minutes, at :10 and :40 pastNewarkOperates around the general area of currently suspended Route 275, with additional service to Ardenwood Park & Ride and Newark Senior Center

Early Bird Express

On February 11, 2019, the beginning of BART service on weekdays was changed from 4:00 am to 5:00 am for a three-year period to allow for overnight seismic retrofit work in the Transbay Tube. Thirteen Early Bird Express routes, of which six are operated by AC Transit, were created to provide service between 3:50 am and 5:30 am. The AC Transit-run routes provide Transbay service to the Temporary Transbay Terminal. Some trips on route 705 are operated by Golden Gate Transit and WestCAT.

Transbay service

These routes cross San Francisco Bay and connect the East Bay with San Francisco, San Mateo, and Santa Clara Counties. All routes except Route 800 are lettered. Most Transbay routes operate weekdays only during commute periods; two routes operate throughout the day on weekdays only and three routes operate daily. Most commute-only routes operate westbound from the East Bay in the morning and eastbound to the East Bay in the afternoon, but some service is provided in the reverse commute direction.

Serving San Francisco

All bus routes serving San Francisco cross the San Francisco–Oakland Bay Bridge and terminate at the Salesforce Transit Center. A map showing bus stop boarding locations at the SFTC is available .
RouteTerminalDays of OperationCities and Communities ServedConnecting BART StationLocal Travel PermittedSchedule Information
BTrestle Glen
Weekdays OaklandN/AYes
CPiedmont
Weekdays Emeryville, Oakland, PiedmontMacArthurYes
CBMontclair
Weekdays OaklandN/AYes
EBerkeley Hills
Weekdays Oakland, BerkeleyN/AYes
FUC Berkeley
DailyEmeryville, Oakland, BerkeleyDowntown Berkeley, AshbyYes
FSBerkeley
Weekdays BerkeleyDowntown BerkeleyNo
GEl Cerrito
Weekdays Berkeley, Albany, El CerritoEl Cerrito PlazaYes
HRichmond
Weekdays Berkeley, Kensington, El Cerrito, RichmondN/AYes
JBerkeley
Weekdays Emeryville, BerkeleyN/AYes
LSan Pablo
Weekdays Albany, El Cerrito, Richmond, San PabloEl Cerrito del NorteNo
LAAll trips:
Richmond
Weekdays RichmondN/AYes
LASelect trips:
Hilltop Green
Weekdays RichmondN/AYes
NLEast Oakland
DailyOakland19th Street/OaklandYes
NXEast Oakland
Weekdays OaklandN/ANo
NX1East Oakland
Weekdays OaklandN/ANo
NX2East Oakland
Weekdays OaklandN/ANo
NX3San Leandro
Weekdays Oakland, San LeandroN/ANo
NX4Castro Valley
Weekdays Oakland, San Leandro, Castro ValleyN/AYes
NXCCastro Valley
Weekdays Oakland, San Leandro, Castro ValleyN/AYes
OOakland
DailyOakland, AlamedaFruitvaleYes
OXAM terminal:
Bay Farm Island
Weekdays Oakland, AlamedaN/AYes
OXPM terminal:
Bay Farm Island
Weekdays Oakland, AlamedaN/AYes
PPiedmont
Weekdays Oakland, PiedmontN/AYes
SHayward
Weekdays San Leandro, San Lorenzo, HaywardN/AYes
SBNewark
Weekdays Hayward, Union City, NewarkN/AYes
VOakland
Weekdays OaklandN/AYes
WAlameda
Weekdays Oakland, AlamedaN/ANo
ZAM terminal:
Albany
Weekdays Emeryville, Berkeley, AlbanyN/AYes
ZPM terminal:
Albany
Weekdays Emeryville, Berkeley, AlbanyN/AYes

Service via the San Mateo Bridge

One route operates between the East Bay and San Mateo County via the San Mateo Bridge.

Service via the Dumbarton Bridge

AC Transit operates one route between the East Bay and Santa Clara County via the Dumbarton Bridge. Additional bus service across the Dumbarton Bridge is provided by Dumbarton Express, which is a Transbay bus service provided under a consortium of five transit operators. Dumbarton Express was operated by AC Transit through December 16, 2011 before being transferred to a contractor.

School service

A series of routes serve a variety of public and private middle, junior high, and high schools in Alameda and Contra Costa Counties. These routes generally operate only when school is in session. While these lines are open to all riders at regular fares, they do not operate during most school breaks and holidays. Some regular local bus routes also provide supplemental school service to nearby schools. These routes are usually timed to match the morning and afternoon bell schedules of all schools served.
There are 46 school routes numbered between 600 and 699: 604, 605, 606, 607, 611, 617, 620, 621, 623, 624, 625, 626, 628, 629, 631, 638, 642, 646, 648, 649, 650, 652, 653, 654, 655, 657, 658, 660, 662, 663, 667, 668, 669, 671, 672, 675, 676, 677, 679, 680, 681, 682, 684, 687, 688, and 696. Route descriptions, maps, and schedules are available .

All Nighter service

Several transit agencies in the Bay Area, including AC Transit, participate in the All Nighter program. All Nighter buses provide overnight bus service when BART and Caltrain are not operating. AC Transit Route 800 is the backbone of this network, serving eleven or thirteen BART and four Muni Metro stations en route.
All AC Transit All Nighter routes provide timed transfers at Broadway and 14th Street in downtown Oakland. Most routes operate daily including holidays, generally from midnight to 5:00 AM. Weekend morning service on Routes 800 and 801 extends until 6 AM on Saturdays and 8 AM on Sundays, corresponding to the start of BART service for the day.

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