| City: | Saginaw, Michigan |
| Names to Avoid: | Ameritech, At&T |
| County: | Saginaw County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 7:58:02 AM |
| Population: | No Population Data |
| Area Code: | 989 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 43.4197, -83.9506 |
| Quick Link: |
Ameritech, the regional Bell telephone company that served Michigan from 1984 until its acquisition by SBC Communications in 1999, operates under dedicated ZIP code 48663 in Saginaw County, Michigan. Ameritech was formed in 1984 when AT&T was required to divest its 22 local telephone companies, receiving Michigan Bell along with four other Midwestern carriers. The postal records show AT&T was added as an alias in June 2006, reflecting the corporate evolution after SBC acquired AT&T Corp. in 2005 and adopted the AT&T name.
With just a single routing code on file, this ZIP represents a focused mail operation from the telecommunications company's legacy infrastructure. What was once Michigan Bell became part of the modern AT&T through successive mergers and acquisitions. The current AT&T claims the original AT&T Corporation's history dating to 1877 while retaining SBC's corporate structure. Saginaw is the valid mailing city for this designation.
| Residential: | 0 |
| Business: | 1 |
ZIP Code 48663 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 1Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 48663 is located in Saginaw County, Michigan, within the Saginaw, MI Metropolitan Statistical Area (CBSA 40980) and Michigan's 8th Congressional District. This Metro area has a population of 200,169 people, about 0.00% of whom live in ZIP Code 48663. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Saginaw, MISource: Census |
| CBSA Number: | 40980Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 200,169Source: Census |
| MSA: | Saginaw-Bay City-Midland, MI MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 08Source: USPS |
| Congressional Land Area: | 1503.18 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2670520Source: Census |
| Place Name: | Saginaw city; MichiganSource: Census |
We could not locate which school district 48663 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.