St. Paul, became the new area code 651. Within another year, however, it became apparent that the creation of 651 would not free up enough numbers in the western Twin Cities to meet demand. The Twin Cities are home to most of the state's landlines, pagers, and cell phones, and their continued proliferation forced a three-way split of 612 that took effect in 2000. Minneapolis and a few suburbs to the north and south kept 612. The northwest suburbs (Brooklyn Park, Coon Rapids, Maple Grove) became area code 763 while the southwest suburbs (Bloomington, Eden Prairie, Minnetonka. St. Louis Park) got area code 952. The eastern half of the University of Minnesota, Twin Cities campus, in the St. Paul suburb of Falcon Heights, is an exception to the regional numbering plan. Because of an integrated telephone system linking both campuses, the Falcon Heights campus remained in 612 after the 1998 split. 612 is one of the few urbanized area codes without an area code overlay, making Minneapolis one of the few major cities where seven-digit dialing is still possible. Under current projections, it will stay that way until at least 2039. The area code splits in the Twin Cities are unusual because they split along municipal, rather than exchange area boundaries. This led to a division of numerous exchange areas between the two area codes, and a few being divided among three. Even with the split into four area codes, most of the Twin Cities region is still a single rate center. The four Twin Cities area codes comprise one of the largest local calling areas in the United States; with a few exceptions, no long-distance charges are applied from one part of the Twin Cities to another. Portions of area codes 320 and 507 are local calls from the Twin Cities as well. Service area City of Minneapolis Richfield St. Anthony Fort Snelling University of Minnesota, Twin Cities See also List of North American area codes References External links NANPA: Minnesota area code map Area code history 1947 Area Code Assignment Map 612 612 Telecommunications-related introductions in 1947