What cities are covered by area code 309 in Illinois?

Area code 309 covers cities such as Bloomington, Peoria, Moline, East Moline, East Peoria, Galesburg, Normal, Pekin, and Rock Island.

When was area code 309 established?

Area code 309 was established in 1957.

What is the overlay code for area code 309?

The overlay code for area code 309 is 861.

Why was an overlay code introduced for area code 309?

The overlay code 861 was introduced to accommodate growing demand and prevent number exhaustion in the region.

What are the major telecommunications services available in area code 309?

Area code 309 supports landline services, wireless services, and VoIP services.

Which regulatory body oversees area code 309?

The Illinois Commerce Commission (ICC) oversees the regulatory framework for area code 309.

When did area code 309 transition to ten-digit dialing?

Area code 309 transitioned to ten-digit dialing on October 24, 2021.

What historical changes led to the creation of area code 309?

Area code 309 was created in 1957 from a split of area code 815.

What is the significance of the year 2021 for area code 309?

In 2021, area code 309 transitioned to ten-digit dialing to accommodate the national 988 lifeline.

What is the NPA code for area code 309?

The NPA (Numbering Plan Area) code for area code 309 is 309 itself.

What are the latitude and longitude coordinates for Bloomington in area code 309?

Bloomington is located at 40.4842°N latitude and -88.99369°W longitude.

How does area code 309 support rural and urban connectivity?

Area code 309 supports connectivity through a variety of telecommunications services, including landline, wireless, and VoIP.

Where can I find more information about area code 309 regulations?

More information can be found on the Illinois Commerce Commission's official site.

How does area code 309 contribute to Illinois' telecommunications infrastructure?

Area code 309 supports major cities and smaller communities, ensuring robust telecommunications connectivity in west-central Illinois.

What prompted the change to ten-digit dialing in area code 309?

The change to ten-digit dialing was prompted by the need to accommodate the national 988 lifeline and avoid number exhaustion.

What is the purpose of the Illinois Commerce Commission in relation to area code 309?

The Illinois Commerce Commission regulates telecommunications services and ensures compliance with state and federal guidelines for area code 309.

How many major cities are included in area code 309?

There are nine major cities included in area code 309.

What is the geographical scope of area code 309?

Area code 309 covers a significant portion of west-central Illinois, including both urban and rural areas.

How has area code 309 evolved over the years?

Area code 309 has evolved with changes such as the introduction of overlay code 861 and the transition to ten-digit dialing to meet growing demand.

What resources are available for learning more about area codes in Illinois?

Resources such as the Illinois Commerce Commission's official site and the Area Code 309 Wikipedia page provide more information.

Area Code 309 in Illinois: Location, Cities, and Telecom Details

Area Code 309 is a vital telecommunications identifier for the west-central region of Illinois. It includes thriving cities such as Bloomington, Peoria, and Moline. Established in 1957, it plays a crucial role in connecting communities within the state.

Key Facts About Area Code 309

Location: West-central Illinois
Major Cities: Bloomington, Peoria, Moline
Established: 1957
Overlay Code: 861

Where is Area Code 309 Located?

Area Code 309 serves a significant portion of Illinois, covering a diverse range of cities:

City	Latitude	Longitude
Bloomington	40.4842°N	-88.99369°W
East Moline	41.50087°N	-90.4443°W
East Peoria	40.66615°N	-89.5801°W
Galesburg	40.94782°N	-90.37124°W
Moline	41.5067°N	-90.51513°W
Normal	40.5142°N	-88.99063°W
Pekin	40.56754°N	-89.64066°W
Peoria	40.69365°N	-89.58899°W
Rock Island	41.50948°N	-90.57875°W

Technical Specifications

NPA Code: 309
Overlay Code: 861
Implementation Date: 1957
State: Illinois

Telecom Services and Network Infrastructure

Area Code 309 supports a variety of telecommunications services, ensuring connectivity across urban and rural areas.

Major Carriers and Services

Landline Services
Wireless Services
VoIP Services

The introduction of overlay code 861 ensures the region can accommodate growing demand and prevent number exhaustion.

Regulatory Information

Area Code 309 is governed by the Illinois Commerce Commission (ICC), which oversees the regulatory framework and guidelines for telecommunications in the region.

Dialing Requirements: Transitioned to ten-digit dialing on October 24, 2021
NANPA Regulations: Includes allocation of central office codes and overlay implementation

Historical Context and Milestones

1947: Illinois was initially divided into four numbering plan areas.
1957: Area Code 309 was created from a split of area code 815.
2021: Change to ten-digit dialing to accommodate the national 988 lifeline.
2023: Introduction of overlay code 861 to meet growing demand.

Conclusion and Further Resources

Area Code 309 remains a cornerstone of Illinois' telecommunications infrastructure, supporting both large cities and smaller communities. The addition of overlay code 861 ensures continued service availability.

For more detailed information, visit the Illinois Commerce Commission's official site or explore the Area Code 309 Wikipedia page.

These resources provide further insights into how area codes function and their impact on regional telecommunications.