What is area code 207 and where does it cover?

Area code 207 is Maine’s single statewide area code. It covers all of Maine, including Portland, Lewiston, Bangor, Augusta, South Portland, Auburn, Saco, Biddeford, Brunswick, Waterville and more. It has no overlays and has never been split.

How has 207 changed over time?

Assigned in 1947 as one of the original NANP codes, 207 still retains its original boundaries—a rarity in North America. Rather than adding a second area code, Maine regulators have extended 207’s life repeatedly through number-conservation (like rate-center consolidation and reclaiming unused blocks). In Oct 2024, the PUC approved consolidating 135 calling areas into one rate center, and in Apr 2025 projected no exhaust until early 2045.

What are the current dialing rules for 207?

Because 207 has no overlay, many local calls in Maine can still be dialed with 7 digits on landlines. Maine was not among the areas forced to 10-digit dialing by the federal 988 rollout (that mandate only applied where “988” already existed as a local prefix under 7-digit dialing). Mobile and VoIP services generally accept 10 digits statewide. When in doubt—especially for cross-rate-center calls—use 10 digits.

Which cities and communities are most associated with 207?

Top population centers using 207 include Portland, Lewiston, Bangor, South Portland, Auburn, Augusta, Westbrook, Saco, Biddeford, Brunswick, Waterville and Presque Isle.

Why did Maine choose conservation over an overlay or split?

The Maine PUC has focused on number pooling, rate-center consolidation, and returning unused blocks to the 207 pool to delay exhaust and avoid number changes for residents and businesses. These measures pushed the exhaust date out multiple times—from earlier forecasts around 2025/2033/2036 to 2045.

What interesting facts are tied to 207?

• Iconic single-code state: Maine is one of the few U.S. states still served by one area code.

• Border quirks: In a few tiny border localities, call routing interacts with nearby Canadian exchanges—one reason Maine has historically kept careful rate-center management.