The Commission has jurisdiction over matters involving the establishment of new area codes in Indiana. NANPA then files a petition for area code relief with the Commission along with a recommended method of relief. Three methods of relief can be used: geographic split which divides the existing area code territory and requires existing numbers to be changed to the new area code , all services distributed overlay in which a new area code will be used for new numbers in the existing area code territory , or a concentrated overlay in which, a new area code and ten-digit dialing is required, at first, only in a concentrated area within the area code.
All remaining areas outside of the concentrated area would retain current telephone numbers and 7-digit dialing for local calls until the remaining old area code numbers are all assigned. At that point all customers within the area code would use ten-digit dialing for local calls. Ensure that all services, automatic dialing equipment, or other types of equipment recognize the new area code as a valid area code, and continue to program telephone numbers with digit telephone numbers.
Some examples are: stored phone numbers in contact lists in wireless and cordless phones, PBXs, fax machines, Internet dial-up numbers, speed dialers, call forwarding settings, voicemail services, medical alert devices, safety alarm security systems and gates, ankle monitors, or other similar equipment.
Check their websites, business stationery, advertising materials, personal and business printed checks, contact information, and personal or pet ID tags to ensure the area code is included. The price of a call, coverage area, or other rates and services will not change due to the overlay. Customers can still dial just three digits to reach , as well as , , , , , or if those are currently available in their community.
To ensure a continuing supply of telephone numbers, the Florida Public Service Commission has approved the addition of the area code to the geographic region served by the area code. What is an area code overlay?
Who will be affected? Anyone with an or area code telephone number will be affected. The area code serves Hillsborough county, and parts of Pinellas and Pasco counties.
The area code serves the greater metropolitan area of Tampa, including communities such as Brandon, Oldsmar, Plant City, Temple Terrace, and Zephyrhills.
The new area code will serve the same geographic region currently served by the existing area code. What will be the new dialing procedure? When will the dialing change begin?
Beginning January 22, , if you have an area code, you must dial the area code on all calls, including calls within the same area code. Beginning February 22, , new telephone lines or services may be assigned numbers with the new area code.
What will you need to do? The new area code will serve the same geographic area currently served by the area code. The overlay does not require you to change your existing area code or phone number, or how you dial your calls. Beginning January 21, , customers in the area code region may be assigned a number in the new area code when they request new service or an additional line.
To ensure a continuing supply of telephone numbers, the Public Service Commission of the District of Columbia has approved the addition of the area code to the geographic region served by the area code. Anyone with a or area code telephone number will be affected. The area code serves the District of Columbia. Beginning October 9, , if you have a area code, you must dial the area code on all calls, including calls within the same area code. Beginning November 9, , new telephone lines or services may be assigned numbers with the new area code.
To ensure a continuing supply of telephone numbers, the Oklahoma Corporation Commission has approved the addition of the area code to the geographic region served by the area code. Beginning April 24, , if you have a area code, you must dial the area code on all calls, including calls within the same area code. Beginning May 24, , new telephone lines or services may be assigned numbers with the new area code. To ensure a continuing supply of telephone numbers, the Pennsylvania Public Utility Commission has approved the addition of the area code to the geographic region served by the area code.
The area code generally covers northwestern and central portion of Pennsylvania, serving communities such as Altoona, Erie, Johnstown, State College, and Warren. Beginning April 3, , if you have an area code, you must dial the area code on all calls, including calls within the same area code.
Beginning May 1, , new telephone lines or services may be assigned numbers with the new area code. To ensure a continuing supply of telephone numbers, the Illinois Commerce Commission has approved the addition of the area code to the geographic region served by the area code. The area code generally covers the central region of the state serving thirty-five counties, including large cities such as Champaign-Urbana, Danville, Decatur, Effingham, Jacksonville, Quincy, Rantoul, Springfield, and Taylor.
Beginning February 27, , if you have a area code, you must dial the area code on all calls, including calls within the same area code. Beginning March 27, , new telephone lines or services may be assigned numbers with the new area code.
To ensure a continuing supply of telephone numbers, the Florida Public Services Commission has approved the addition of the area code to the geographic region served by the area code. An area code overlay is the addition of another area code to the same geographic region served by an existing area code Beginning May 22, , if you have an area code, you must dial the area code on all calls, including calls within the same area code.
Beginning June 22, , new telephone lines or services may be assigned numbers with the new area code. You may also want to check your websites, personal and business stationery and checks, advertising materials, personal or pet ID tags, and other such items to ensure the area code is included. To ensure a continuing supply of telephone numbers, the California Public Utilities Commission CPUC has approved the addition of the area code to the geographic area served by the area code.
The overlay will require all calls to be completed using new dialing procedures. An overlay does not require customers to change their existing area code, but does require customers to use a new dialing procedure to complete telephone calls. All customers who have a or area code telephone number will be affected.
The area code serves the southwestern portion of San Bernardino County, the eastern portion of Los Angeles County and small portions of Orange and Riverside Counties. Beginning July 25, , you should begin using the new dialing procedures whenever you place a call from the or area codes. Beginning January 23, , you must use the new dialing procedures, as described above for all calls. After this date, if you do not use the new procedures, your calls will not be completed and a recording will instruct you to hang up and dial again including the area code.
Beginning February 23, , new telephone lines or services in the area may be given numbers from the new area code. Anyone that receives an area code telephone number must use the new procedures described above. In addition to changing your dialing procedures, all services, automatic dialing equipment, or other types of equipment that are programmed to dial seven digits will need to be reprogrammed to use the new dialing procedure.
Some examples are life safety systems and medical monitoring devices, PBXs, fax machines, Internet dial-up numbers, alarm and security systems or gates, speed dialers, call forwarding settings, voicemail services, and other similar services or equipment.
You may also want to check your personal and business stationery, personal and business checks, advertising materials, websites, contact information, and personal or pet ID tags to ensure the area code is included in the telephone number. The new area code will be superimposed over the region now served by the , and area codes. Who will be affected and when will the change begin? Beginning January 15, , customers in the metropolitan area of Dallas and surrounding communities such as Allen, Frisco, Grand Prairie, McKinney, Rockwall, Terrell, and Waxahachie, may be assigned a phone number in the new area code when requesting new service, an additional line, or in some cases, moving their service.
The area code will co-exist everywhere in this region with the , and area codes. What will customers need to do? Customers served by the , and area codes overlay should:. What will remain the same? On July 26, , the South Carolina Public Service Commission approved an all services overlay as the relief method for the area code to ensure a continuing supply of telephone numbers.
An overlay does not require customers to change their existing area code. The area code generally covers the west central portion of the state serving communities such as Aiken, Allendale, Chester, Columbia, Lancaster, Orangeburg and Sumter.
The same dialing procedure will apply to telephone numbers assigned to the new area code. Effective October 26, , you should begin using the new dialing procedures whenever you place a call from the area code.
If you forget and dial just seven digits, your call will still complete. Beginning April 25, , you must use the new dialing procedures, as described above. On and after this date, if you do not use the new dialing procedures, your calls will not complete. A recorded message will instruct you to hang up and dial again, including the area code.
Beginning May 26, , new telephone lines or services may be assigned numbers using the new area code. In addition to changing your dialing procedures, all services, automatic dialing equipment, or other types of equipment that are programmed to dial a 7-digit number will need to be reprogrammed to use the new dialing procedures. Some examples are life safety systems, stored telephone numbers in contact lists in phones, PBXs, fax machines, Internet dial-up numbers, alarm and security systems or gates, speed dialers, call forwarding settings, voicemail services, etc.
You may also want to check your business stationery or advertising materials to ensure the area code is included. On May 23, , the Public Utilities Commission of Ohio approved an all services overlay as the relief method for the area code to ensure a continuing supply of telephone numbers.
The area code generally covers the western region of the state serving communities such as Dayton, Wilmington, and Springfield. Effective August 10, , you should begin using the new dialing procedures whenever you place a call from the area code.
Beginning February 8, , you must use the new dialing procedures, as described above. On and after this date, if you do not use the new dialing procedures, your calls will not complete and a recording will instruct you to hang up and dial again including the area code. Beginning March 8, , new telephone lines or services may be assigned numbers using the new area code. Likewise, the first three digits in the U. ZIP Code system get higher the further west you go. As shown by this map , Bell appears to have based its initial decision-making on area codes on a combination of population and future need.
Initially, every area code installed had a second digit that was either a 0 or a 1. This structure meant a couple of things: First, it was a bit of a godsend for people dialing on rotary phones, because it made the most valuable area codes the easiest to dial, making analog dials easier to push around when making a call. This is highlighted in terms of who got the most popular codes.
For example, California initially got the area codes , , and Chicago, likewise, got , Detroit , and Washington, D. The largest and most prominent cities got the best codes, while smaller states had to drag the zero all the way around, almost as a punishment of sorts for not being bigger. And then there's Manitoba, which got , a more efficient code than the Toronto area got, but I digress. But more importantly, it meant that the system was built with a degree of future-proofing.
By leaving out numbers higher than 1 on the second digit, that meant that numerous area codes would be available in the decades to come, in case growth spurts hit and suddenly your state needs a lot of area codes—looking at you, Florida. A telephone area code map from the s. Here's a larger version. One of the few examples of butting codes on the map is with Virginia and North Carolina As highlighted by this s-era map of numbering codes , the two codes were quickly separated.
Senator discussing the frustration his group, the Anti-Digit Dialing League, had with the switch to area codes and away from phone numbers partially based on memorable telephone exchange names.
The group, formed in thanks to the help of a want ad , fought the idea of moving away from this letter-based system, in part because it felt longer numbers would be harder to remember. The group fought the effort in court, but despite winning an early round , ultimately lost the battle, as proven by the fact that area codes are everywhere. Growing demand has put nearly every variation of 8XX into the phone system for toll-free calls.
It seems apparent, in hindsight, how inefficient the process actually was. But at first, the breakdown of area codes stayed relatively stable , but as we started using telephone lines for more things—first with modems, fax machines, and pagers, and later with smartphones—the crunch became more apparent.
By , Maryland had to switch to an digit numbers for local calls to make room for all the extra demand. Cities like New York found themselves having to rely on multiple area codes over a small area. And that trend continues today, with some areas running out of numbers for their longtime area codes.
Even areas that have managed to stick with seven-digit phone numbers for local calls, like Albany, New York, have found themselves having to recently make the switch to ten-digit numbers.
Just imagine how the Anti-Digit Dialing League would feel about that. Area codes that once covered entire states now represent tiny portions of that state. All of this has had a strange effect on identity.
In , the addition of the area code in San Francisco, famed for its code, led to a lot of heartache from locals. NANPA has already given itself an out : When we inevitably run out of the current numbers we have, the administrators will push us toward adding yet another number to the current lineup of 10, plus one more for the country code.
It already has a number set aside for this reason. This could go down multiple paths—you could suggest that it highlights an early strain of anti-intellectualism in an age of useful corporate innovation that has played out in other ways.
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