44
- 04401 Bangor
- 04406 Abbot
- 04408 Aurora
- 04410 Bradford
- 04411 Bradley
- 04412 Brewer
- 04413 Brookton
- 04414 Brownville
- 04415 Brownville Junction
- 04416 Bucksport
- 04417 Burlington
- 04418 Greenbush
- 04419 Carmel
- 04421 Castine
- 04422 Charleston
- 04424 Danforth
- 04426 Dover Foxcroft
- 04427 Corinth
- 04428 Eddington
- 04429 Holden
- 04430 East Millinocket
- 04431 East Orland
- 04434 Etna
- 04435 Exeter
- 04438 Frankfort
- 04441 Greenville
- 04442 Greenville Junction
- 04443 Guilford
- 04444 Hampden
- 04448 Howland
- 04449 Hudson
- 04450 Kenduskeag
- 04451 Kingman
- 04453 Lagrange
- 04454 Lambert Lake
- 04455 Lee
- 04456 Levant
- 04457 Lincoln
- 04459 Mattawamkeag
- 04460 Medway
- 04461 Milford
- 04462 Millinocket
- 04463 Milo
- 04464 Monson
- 04468 Old Town
- 04469 Orono
- 04471 Orient
- 04472 Orland
- 04473 Orono
- 04474 Orrington
- 04475 Passadumkeag
- 04476 Penobscot
- 04478 Rockwood
- 04479 Sangerville
- 04481 Sebec
- 04485 Shirley Mills
- 04487 Springfield
- 04488 Stetson
- 04489 Stillwater
- 04490 Topsfield
- 04491 Vanceboro
- 04492 Waite
- 04493 West Enfield
- 04495 Winn
- 04496 Winterport
- 04497 Wytopitlock