Question: What area code is used where WDJO broadcasts?

full_context: Document 1: WDJO: WDJO is an AM radio station in Cincinnati, Ohio that airs an oldies format. The station is the Cincinnati affiliate for the Ohio State IMG Sports Network. Oldies 1480 (as it is branded) is owned by Robert T. Nolan, through licensee Mustang Media, Inc. The station operates at 4,500 watts during the day and 300 watts at night.
Document 2: WDPS: WDPS (89.5 FM) (for: Dayton Public Schools and its nickname Dayton's Power Source") is a radio station broadcasting a Jazz format. It serves its city of license, Dayton, Ohio, United States. The station is currently owned by Dayton Public Schools. Its programming is aired weekdays during school hours during the curricular school year. The frequency is shared with WQRP which airs a gospel music format when WDPS programming ends after the school day. According to a Dayton Daily News story dated July 21, 2009, the station has moved to new studios located in the David H. Ponitz Career Technology Center at 741 West Washington St. A switch to a "real jazz" format has also taken place.
Document 3: WOFX-FM: WOFX-FM (92.5 FM) is an American radio station in Cincinnati, Ohio. The station plays a classic rock format. The station is owned and operated by Cumulus Media. It broadcasts with an effective radiated power of 16,000 watts. It was the FM flagship station of the Cincinnati Bengals through the 2008 preseason
Document 4: Seven-digit dialing: The initial 86 area codes were assigned in 1947 as routing codes for operator calls; the first cross-country Bell System direct distance dial call was made in 1951. The system was based on fixed - length numbers; a direct - dial long distance call consisted of a three - digit area code and a seven - digit local number. Numbers in 2L + 4N cities (such as Montréal and Toronto) were systematically lengthened to seven digits in the 1950's, a few exchanges at a time, so that all local numbers were seven digits when direct distance dialling finally came to town.
Document 5: List of Ohio area codes: Code Created Region 216 1947 Cleveland (October 1947) 234 2000 Akron, Canton, Youngstown, and Warren, overlay with 330 330 Akron, Canton, Youngstown, and Warren, overlay with 234 380 2016 Columbus, overlay with 614 (February 27, 2016) 419 1947 Northwest and north central Ohio including Toledo, Sandusky, and Ashland, overlay with 567 (October, 1947) 440 1997 Part of Northeast Ohio including parts of Cleveland (August 16, 1997) 513 1947 Southwest Ohio including Cincinnati (October, 1947) 567 1947 Northwest and north central Ohio including Toledo, Sandusky, and Ashland, overlay with 419 (January 1, 2002) 614 1947 Columbus (October, 1947) 740 1997 Central and southeastern Ohio except Columbus (December 6, 1997) 220 1997 Central and southeastern Ohio except Columbus (December 6, 1997) 937 Southwestern part of Ohio including Springfield, Dayton, public parts of Wright - Patterson Air Force Base, and areas north of Cincinnati (September 28, 1996)
Document 6: Area codes 213 and 323: Area codes 213 and 323 are California telephone area codes in the North American Numbering Plan. They contain, roughly, the area of central Los Angeles. 213 / 323 also includes several gateway cities of the region, including Bell and Huntington Park. Before being reunited in an overlay in 2017, they were separate area codes, with 213 containing only downtown Los Angeles and its immediately adjoining neighborhoods, with 323 containing the rest of the area.
Document 7: WRFD: WRFD (880 AM) is a radio station licensed to both Worthington and Columbus, Ohio, United States. WRFD is owned by Salem Media Group and is a sister station to conservative talk outlet WTOH (98.9 FM). The two stations share studios in the northwest portion of Columbus, and WRFD's transmitter is based near Cooper Stadium on the city's west side. WRFD can also be heard via translator station W283CL (104.5 FM), which launched in November 2016.
Document 8: Ann Arbor, Michigan: Four major AM radio stations based in or near Ann Arbor are WAAM 1600, a conservative news and talk station; WLBY 1290, a business news and talk station; WDEO 990, Catholic radio; and WTKA 1050, which is primarily a sports station. The city's FM stations include NPR affiliate WUOM 91.7; country station WWWW 102.9; and adult-alternative station WQKL 107.1. Freeform station WCBN-FM 88.3 is a local community radio/college radio station operated by the students of the University of Michigan featuring noncommercial, eclectic music and public-affairs programming. The city is also served by public and commercial radio broadcasters in Ypsilanti, the Lansing/Jackson area, Detroit, Windsor, and Toledo.
Document 9: Area codes 740 and 220: North American Area code 740 is a telephone area code serving southeastern and central Ohio. (Columbus and rate centers in Franklin County use the 614 area code.) 740 is the area code in the Ohio cities of Athens, Belpre, Chillicothe, Circleville, Coshocton, Delaware, Gallipolis, Heath, Ironton, Jackson, Lancaster, Laurelville, Logan, Marietta, Marion, Mount Vernon, Nelsonville, Newark, Newcomerstown, Pataskala, Portsmouth, Rockbridge, Steubenville, Washington Court House, Zanesville, Shadyside and surrounding areas.
Document 10: Area codes 208 and 986: Area codes 208 and 986 are the North American telephone area codes for all of Idaho. 208 is the main area code, and is one of the 86 original area codes created in 1947. It was Idaho's sole area code until 2017, when 986 was added as an overlay for the entire state.
Document 11: WBCO: WBCO (1540 AM) is a radio station licensed to serve the community of Bucyrus, Ohio. The station currently features a classic country format.
Document 12: CFOS: CFOS is an AM radio station broadcasting from downtown Owen Sound, Ontario, Canada. The format is oldies, classic adult contemporary music, and news (plus an adult standards/nostalgic music show, "Remember When," several nights a week from 8-11 p.m.), and is branded as 560 CFOS. 560 CFOS is owned and operated by Bayshore Broadcasting of Owen Sound.
Document 13: Area code 607: North American area code 607 is a state of New York telephone area code servicing parts of its Southern Tier (which borders Pennsylvania). It was split from parts of area codes 315 and 716 in 1954. Initially, in the late 1940s, area codes with a middle digit of ``0 ''(x0x - xxx - xxxx) were assigned only to jurisdictions covering an entire state. Along with 507 in Minnesota and 606 in Kentucky, 607 was among the first such area codes to be added to a jurisdiction.
Document 14: Area codes 978 and 351: Area code 978 was created as a split from area code 508 on September 1, 1997 and covers north central and most of northeastern Massachusetts (LATA code 128). Use of 978 became mandatory February 1, 1998. Prior to when this area was served by 508 (July 1988), it was served only by the 617 area code, along with the rest of the eastern two - thirds of the state. 351 has been sharing the service area since May 2, 2001. Since then, 10 digit local dialing is mandatory.
Document 15: Area codes 304 and 681: North American telephone area code 304 was established October 1947 as one of the original area codes, and serves all of the U.S. state of West Virginia. It was overlaid with area code 681, effective March 28, 2009.
ground_truth: 513
sub_queries: What is the name of the state where WDJO is located? Answer: Ohio
what is the area code for cincinnati Ohio Answer: 513