| Department | Address | Telephone |
| Agriculture: Stabilization and Conservation Service | 444 Stillwater Ave. | 990-9140 |
| Agriculture: Animal and Plant Health Inspection Service; Plant Protection and Quarantine | Bangor International Airport | 945-0479 |
| Agriculture: Penobscot Cooperative Extension | 307 Maine Ave. | 942-7396 |
| Agriculture: Natural Resources Conservation Service | 28 Gilman Plaza | 947-6622 |
| Agriculture: Natural Resources Conservation Service - RECD | 28 Gilman Plaza | 990-3676 |
| Agriculture: Natural Resources Conservation Service - RECD | 28 Gilman Plaza | 947-0334 |
| Agriculture: Rural Economic and Community Development - Administration Division | 444 Stillwater Ave. | 990-9106 |
| Agriculture: Rural Economic and Community Development - Rural Business and Cooperative Development | 444 Stillwater Ave. | 990-9120 |
| Agriculture: Rural Economic and Community Development - Rural Housing Division | 444 Stillwater Ave. | 990-9110 |
| Agriculture: Rural Economic and Community Development - TDD only | 444 Stillwater Ave. | 942-7331 |
| Air Force: Recruiting and Retention - Bangor Armory Recruiting Canvassing Point | 942-7667 | |
| Air Force: Base Exchange | 942-1809 | |
| Air Force: Recruiting Station | 117 Broadway | 942-9509 |
| Air Force | 117 Broadway | 942-9574 |
| Army: Recruiting and Retention - Bangor Armory Recruiting Canvassing Point | 942-7667 | |
| Army: Recruiting Station | 117 Broadway | 942-7909 |
| Army: Junior ROTC | 885 Broadway | 945-5292 |
| Army: Unit adviser | 931 Union St. | 947-6904 |
| Army: Reserve Center - Company C 76th Training Division commander | 931 Union St. | 947-6903 |
| Army: Reserve Center - Unit administrator | 931 Union St. | 947-6904 |
| Army: Reserve Center - 1125th U.S. Army Hospital, Main Office | 931 Union St. | 947-7495 |
| Army: Reserve Center - Commander | 931 Union St. | 947-7498 |
| Census Bureau | 324 Harlow St. | 990-1386 |
| Congress: Rep. John Baldacci | 202 Harlow St. | 942-6935 |
| Congress: Sen. Susan Collins | 202 Harlow St. | 945-0417 |
| Congress: Sen. Olympia Snowe | 1 Cumberland Place | 945-0432 |
| U.S. District Court: Appeals 1st Circuit | 202 Harlow St. | 941-8150 |
| Bankruptcy Court: Clerk | 202 Harlow St. | 945-0348 |
| Bankruptcy Court: Judges chambers | 202 Harlow St. | 945-0550 |
| U.S. District Court: Clerk | 202 Harlow St. | 945-0575 |
| U.S. District Court: District judge | 202 Harlow St. | 945-0549 |
| U.S. District Court: Magistrate | 202 Harlow St. | 945-0315 |
| U.S. District Court: Probation Office | 202 Harlow St. | 945-0369 |
| General Service Administration: Federal Protective Service | 202 Harlow St. | 945-0400 |
| General Service Administration: Public Building and Real Property Office | 202 Harlow St. | 945-0470 |
| Housing and Urban Development: General information | 202 Harlow St. | 945-0467 or (800) 358-6215 (TDD only) |
| Housing and Urban Development: Housing/FHA Homeowner's Mortgage Insurance Premium and Distributive Share refunds | (800) 697-6967 or (800) 877-8339 (TDD) | |
| Housing and Urban Development: Housing Counseling for Home Buyers and Renters | (800) 569-4287 | |
| Housing and Urban Development: Housing Discrimination and Information | (800) 827-5005 or (800) 927-9275 (TDD) | |
| Housing and Urban Development: Home Ownership Center | (800) 440-8647 | |
| Housing and Urban Development: Forms and directives ordering | (800) 767-7468 or (800) 877-8339 (TDD) | |
| Housing and Urban Development: Insured FHA mortgages and problem mortgages | (888) 297-8685 | |
| Housing and Urban Development: Maine state office - Senior Community Builder/Coordinator | 945-0468 | |
| Housing and Urban Development: Title I Insurance Program | (800) 733-4663 | |
| Housing and Urban Development: Sold properties, advertisements, foreclosures mailing list | (800) 525-1741 | |
| Interior Department: Maine field office | 1033 South Main St., Old Town | 827-5938 |
| Interior Department: Sunkhaze Meadows National Wildlife Refuge | 1033 South Main St., Old Town | 827-6138 |
| Internal Revenue Service: Federal tax forms | 324 Harlow St. | (800) 829-3676 |
| Internal Revenue Service: Tele-Tax recorded refund information | (800) 829-4477 | |
| Internal Revenue Service: Federal tax information | (800) 829-1040 | |
| Internal Revenue Service: Problem Resolution Office | (800) 829-1040 | |
| Internal Revenue Service: TTY | (800) 829-4059 | |
| Justice: Post of Duty | 945-0355 | |
| Justice: Federal Bureau of Investigation | 202 Harlow St. | 947-6670 |
| Justice: Immigration and Naturalization | 267A Godfrey Blvd. | 945-0334 |
| Justice: U.S. attorney | 99 Franklin St. | 945-0344 or 945-0307 (TTY) |
| Justice: U.S. Marshal | 945-0416 | |
| Labor: Manpower Administration - Penobscot Job Corps Center; nights, Sundays, holidays | 1375 Union St. | 947-6000 |
| Labor: Penobscot Job Corps Center | 1375 Union St. | 990-3000 |
| Labor: Occupational Health and Safety Administration | 202 Harlow St. | 941-8177 |
| Labor: Wage and Hour Public Contract Division | 202 Harlow St. | 945-0330 |
| Marine Corps: Recruiting office | 117 Broadway | 942-2719 |
| Marine Corps: Recruiting station | 117 Broadway | 947-1487 |
| Marine Corps: Recruiting station | Intown Plaza, Harlow Street | 942-5138 |
| National Guard: Recruiting and Retention | 28 Hayes St. | 942-8724 |
| Navy: Reserve Center | 300 Hildreth St. | 942-4388 |
| Navy: Reserve recruiting | 300 Hildreth St. | 947-0669 |
| Navy: Recruiting office | 117 Broadway | 947-4228 or 941-1968 |
| Postal Service: General information | 202 Harlow St. | 941-2016 |
| Postal Service: Bulk Mail Unit | 202 Harlow St. | 941-2026 |
| Postal Service: Claims and Inquiries | 202 Harlow St. | 941-2016 |
| Postal Service: Employee Reporting | 202 Harlow St. | 941-2032 |
| Postal Service: Finance Office | 202 Harlow St. | 941-2035 |
| Postal Service: TDD | 941-2018 | |
| Postal Service: Hiring and Examinations | 202 Harlow St. | 941-2064 |
| Postal Service: Mailing requirements | 202 Harlow St. | 941-2095 |
| Postal Service: Passports | 202 Harlow St. | 941-2043 |
| Postal Service: Personnel | 202 Harlow St. | 941-2084 |
| Postal Service: Postmaster | 202 Harlow St. | 941-2011 |
| Postal Service: Consumer Affairs | (800) 397-4330 | |
| Social Security Administration | 202 Harlow St. | 990-4530 or (800) 772-1213 |
| Transportation: Federal Aviation Administration - Bangor Automated Flight Service Station, Bangor administration | 198 Maine Ave. | 947-3349 |
| Transportation: Federal Aviation Administration - Bangor Automated Flight Service Station, pilots | 198 Maine Ave. | 947-3655 or (800) 922-7433 |
| Transportation: Federal Aviation Administration - Bangor IAP, Bangor Systems Service Center | 945-6544 | |
| Transportation: Federal Aviation Administration - Radar Approach Control | 942-3173 | |
| Transportation: Federal Aviation Administration - Bangor International Airport | 942-6618 | |
| Treasury | 287 Godfrey Blvd. | 947-7861 |
| Treasury: Customs - Office of Investigations | 942-7239 | |
| Veterans Administration: Assistance and information | (800) 827-1000 | |
| Veterans Administration: Veterans Affairs | 304 Hancock St. | 941-8160 |
| Veterans Administration: Veterans Center - Vietnam Era Counseling Program | 352 Harlow St. | 947-3391 |