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Area Code 410: Maryland Cities, Coverage, and Telecommunication Insights
Area code 410 serves eastern Maryland, including Baltimore & the Eastern Shore. Explore its cities, carriers (Verizon, Comcast), & NANPA regulatory details. Introduced in 1991, 410 faces projected numbering exhaustion by 2030, using overlays 443/667. Ten-digit dialing is mandatory.
Area Code 410: Maryland Cities, Coverage, and Telecommunication Insights
<Callout type="info"> 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. </Callout>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.
Additional Resources
Frequently Asked Questions
What area code is Baltimore, Maryland?
Baltimore, Maryland is in area code 410.
When was area code 410 created in Maryland?
Area code 410 was introduced in Maryland on October 6, 1991, as a split from area code 301.
Why was area code 410 introduced in Maryland?
Area code 410 was introduced to accommodate the growing demand for telephone numbers in the eastern part of Maryland, including Baltimore and the Eastern Shore.
What is the projected exhaust date for area code 410?
Area code 410 is projected to exhaust its available numbers by 2030.
What area codes are overlaid on area code 410?
Area codes 443 and 667 are overlaid on area code 410, requiring ten-digit dialing for all local calls.
What major cities are covered by area code 410 in Maryland?
Major cities covered by area code 410 include Annapolis, Baltimore, Columbia, and Salisbury.
What major telecommunication carriers operate within area code 410?
Major carriers in area code 410 include Verizon, Comcast, and Cavalier Telephone.
What types of phone services are available in area code 410?
Area code 410 supports landline, wireless, and VoIP services.
Which organization regulates area code 410?
Area code 410 is regulated by the North American Numbering Plan Administration (NANPA) and the Federal Communications Commission (FCC).
What was the original area code for Maryland before 410?
Before 410, all of Maryland was under area code 301, assigned in 1947.
When was area code 443 overlaid on 410?
Area code 443 was overlaid onto 410 in 1997.
When was the 667 area code added to the 410/443 overlay?
Area code 667 was added as an overlay to 410 and 443 in 2012.
How many telephone numbers are available within area code 410?
Area code 410 has approximately 24 million available telephone numbers, including numbers from overlaid area codes.
Is ten-digit dialing required for local calls in area code 410?
Yes, ten-digit dialing (including the area code) is mandatory for all local calls within area code 410 and its overlays.
What area code is Baltimore Maryland?
Baltimore, Maryland is primarily covered by area code 410. This area code was introduced in 1991, splitting from the original 301, to accommodate the growing demand for phone numbers in the region, including the Baltimore metropolitan area and the Eastern Shore.
How many phone numbers are in area code 410?
Area code 410 has approximately 24 million available phone numbers. However, due to increasing demand, it is projected to be exhausted by 2030. Overlays like area codes 443 and 667 have been implemented to extend its lifespan.
What is area code 410 in Maryland?
Area code 410 serves the eastern part of Maryland, including the Baltimore metropolitan area and the Eastern Shore. It was established in 1991, originating from a split of the 301 area code.
When was area code 410 created?
Area code 410 was introduced on October 6, 1991. This was done to alleviate the increasing demand for phone numbers in eastern Maryland, as the original 301 area code was nearing exhaustion.
Why does Maryland have multiple area codes?
Maryland has multiple area codes due to population growth and the increasing need for phone numbers. Area code 410 was introduced in 1991, followed by overlays 443 in 1997 and 667 in 2012, to ensure sufficient numbering resources.
How to dial a 410 number?
Ten-digit dialing is mandatory for all calls within the 410 area code, even local calls. This means you must dial both the area code and the seven-digit phone number.
What cities are covered by area code 410?
Area code 410 covers major cities in eastern Maryland such as Annapolis, Baltimore, Columbia, and Salisbury. For a comprehensive list, consult the official Maryland state website.
What counties use area code 410 in MD?
While the article does not list the counties, it specifies that area code 410 covers the eastern half of Maryland which includes Baltimore, the Eastern Shore, and surrounding areas.
Who regulates area code 410?
Area code 410 is regulated by the North American Numbering Plan Administration (NANPA). This organization manages the allocation and assignment of area codes within the North American Numbering Plan.
When should I use 10-digit dialing for 410?
You should always use 10-digit dialing for any calls within area code 410, including local calls. This practice has been mandatory in the region, ensuring proper call routing and connection.
What area codes overlap with 410 in Maryland?
Area codes 443 and 667 are overlaid on top of area code 410. This means these three area codes serve the same geographic region, requiring 10-digit dialing to differentiate between numbers.