Area Code 410: Maryland Cities, Coverage, and Telecommunication Insights

Area code 410 is a fundamental part of the North American Numbering Plan (NANP), serving the eastern half of Maryland, notably the Baltimore metropolitan area and the Eastern Shore.

What is Area Code 410 and Where is it Located?

Area code 410 is designated for the eastern region of Maryland. It was introduced on October 6, 1991, to meet the increasing demand for telephone numbers. This area code covers key locations such as the Baltimore metropolitan area and the Eastern Shore.

Geographic Coverage

Area code 410 encompasses a wide range of cities in Maryland. Here are some of the major cities:

Annapolis, MD
Baltimore, MD
Columbia, MD
Salisbury, MD

For a comprehensive list of cities, visit the official Maryland state website.

Numbering and Utilization

Total Numbers Available: 24 million
Projected Exhaust Date: 2030

Network Infrastructure

Major Carriers

Verizon
Comcast
Cavalier Telephone

Services Offered

Landline
Wireless
VoIP

Regulatory Framework

Area code 410 is regulated by the North American Numbering Plan Administration (NANPA). In this region, ten-digit dialing is mandatory for local calls.

Historical Milestones

1947: Maryland was initially assigned area code 301.
1991: Introduction of area code 410, splitting from 301.
1997: Area code 443 was overlaid onto 410.
2012: Area code 667 was added as an overlay to 410/443.

Conclusion

Area code 410 is crucial to Maryland's telecommunications, providing ample numbering resources for the Baltimore metropolitan area and the Eastern Shore. Strategic overlays like 443 and 667 have ensured the ongoing support of the region's communication needs.

For more detailed information on area codes and their management, visit the Federal Communications Commission (FCC) website.