Buy a Local Phone Number – Area Code 734 (Ann Arbor, Michigan)

Assigned in 1997 after a split from 313, area code 734 serves Ann Arbor, Ypsilanti, and portions of western Wayne and Monroe counties. The split reflected fast-growing wireless adoption, expanding ISP lines, and university demand in the 1990s. Carriers and regulators later implemented thousands‑block number pooling to conserve central‑office codes, and local number portability reduced churn pressure on new assignments; no overlay has been added to date. By the early 2020s, 10‑digit dialing became common across Michigan as national standards evolved.

Ann Arbor’s research profile shaped the region’s networks. Merit Network, based in the city, helped operate the NSFNET backbone in the late 1980s–1990s, fostering an early culture of high‑capacity connectivity. Today, the University of Michigan’s hospitals, labs, and data‑intensive programs, along with automotive engineering and supplier parks in the I‑94 corridor, drive fiber builds and dense wireless coverage. Seasonal student turnover increases porting volume and demand for prepaid and VoIP services, and large events spur temporary capacity upgrades near the stadium and downtown.

• Higher education and research (U‑M, R1 labs)
• Healthcare and life sciences
• Automotive R&D, mobility testing, suppliers
• Software, startups, and data services