For example, Kanchanaburi handle immigration duties for all of the province except for Sangkhlaburi District (which are handled, it says, by a separate Sangkhlaburi immigration office). Kanchanburi also handles immigration duties for Ratchaburi and Suphanburi provinces.
Another example: Nong Khai handles immigration for most of Nong Khai province (except for Lao-bordering districts outside Nong Khai District, to be handled by Beung Kan immigration)
The big news is that Korat Immigration will only serve foreigners living in Korat province from Feb 15th. This is an order from the Immigration Bureau in Bangkok.
So, people from Khon Kaen will have to go to Nong Khai. Foreigners from example Lopburi, Nong Khai or Chaiyaphum will not be accepted in Korat, not even for a re-entry permit. More confusing is that the list says that foreigners in Korat shall submit their applications to Kap Choeng Immigration in Surin province from February 15, 2009.
Foreigners living in Phatum Thani Province, Nonthaburi Province, Chainat Province, Lopburi Province, Saraburi province, Singburi province, Ayutthaya Province and Angtong province can visit either Ayutthaya Immigration, Chonburi Immigration or Nakhon Pathom Immigration offices.
It's not clear if this affects the One-Stop Visa & Work Permit Center, as previously those eligible for One-Stop services could use them no matter where in the kingdom they resided. One-Stop isn't mentioned, though presumably it's under jurisidiction 1, Metropolitan Bangkok Immigration Inspection Wing.
The information provided above has been verified with the Immigration Bureau, for a full list off immigration office that has administrative jurisdiction contact the Thai immigration office for further information. http://www.immigration.go.th/
Chequepoints :
North Thailand http://www.immigration.go.th/
Northeast Thailand : http://www.immigration.go.th/
Central Thailand : http://www.immigration.go.th/
South Thailand : http://www.immigration.go.th/
