Area code 740

At a glance

Country code

+1

State

OH

Exchanges on record

800

Carriers on record

31

Most exchanges: AT&T 175, Frontier 123, Lumen 100.

The exchange map

Formats and patterns

Any 740 number, in E.164

^\+1740[2-9]\d{6}$

+1, the area code, a central office code that does not start with 0 or 1, then four digits.

^\+1740(?:2(?:0[27-9]|1[03569]|2[1257-9]|[39][06-8]|4[1348]|5[023578]|6[023]|7[0248]|8[15])|3(?:[02]4|1[0279]|36|[46][01]|5[027-9]|81|9[0168])|4(?:0[3-9]|1[25-8]|24|38|4[027]|[57]9|6[1-46]|85|9[17])|5(?:0\d|1[02467]|25|38|4[12]|5[0236]|6[245]|7[268]|8[1-4]|9[01])|6(?:0[0-7]|1[246]|2[1479]|3[27]|4[14-9]|56|7[23]|8[0348])|7(?:0[13-9]|1[079]|[27]7|3[459]|[46]4|5[01]|8[49]|92)|8(?:0[1-48]|1[02-9]|2[1357]|3[79]|5[136]|6[13]|7[78]|8[39]|99)|9(?:0[2-467]|[28]1|3[05]|53|6[13]|7[0-57-9]|95))\d{4}$

^\+1740(?:2(?:0[013-6]|2[036]|3[1-5]|4[25-79]|5[1469]|6[14-689]|7[13579]|8[02-46-9]|9[13-5])|3(?:0[578]|1[3-6]|2[0-36-9]|3[0-589]|[46][2-9]|5[13-6]|7\d|8[02-9]|9[2-579])|4(?:0[01]|1[034]|2[0-35-9]|3[0-79]|4[13-68]|5[0-8]|6[057-9]|7[1-8]|8[0-4679]|9[02-689])|5(?:1[359]|2[1-46-9]|3[2-79]|4[03-9]|5[147-9]|6[16-9]|7[013-579]|8[5-9]|9[2-9])|6(?:08|1[0578]|2[023568]|3[013-689]|4[23]|5[1-57-9]|6[2-46-9]|7[014-9]|8[125-79]|9[124-9])|7(?:02|16|2[2-68]|3[1-367]|4[1-35-9]|5[3-9]|6[2357-9]|7[0-689]|8[0-3578]|9[14-79])|8(?:09|2[024689]|3[013-68]|4[02-689]|5[2457-9]|6[024-9]|7[02469]|8[124-8]|9[1-46-8])|9(?:0[59]|1[02-79]|2[024-9]|3[1-46-9]|4\d|5[14-7]|6[24-9]|8[2-9]|9[0-46-8]))\d{4}$

^\+1740(?:2(?:1[2478]|24|39|40|67|76|9[29])|3(?:0[0-369]|18|25|37)|4(?:02|[14]9|70|88)|5(?:18|[28]0|3[01]|6[03])|6(?:09|1[39]|[45]0|6[015]|9[03])|7(?:1[2-58]|2[019]|3[08]|40|52|6[016]|86|9[038])|8(?:0[05-7]|32|4[17]|[58]0|7[135]|9[05])|9(?:0[018]|18|23|52|[68]0|99))\d{4}$

The exchange patterns follow the original allocations; a number ported since keeps its digits but not necessarily its carrier or its line type.

Carriers and their exchanges

Every carrier holding exchanges in 740, with the exchanges allocated to it (the three digits after the area code).

Questions developers ask

Where is area code 740?

Area code 740 is in Ohio, in the United States: all 800 of its exchanges on record are there. From abroad it is dialled +1 740, then the seven-digit number.

Is a 740 number mobile or landline?

Either: in the North American Numbering Plan the line type belongs to the exchange (the three digits after the area code), not to the area code. Of the 800 exchanges on record in 740, 231 (29%) were allocated as mobile, 471 (59%) as fixed line, 84 (11%) as VoIP and 14 (2%) have no line type on record. A number can have been ported since, to another carrier and even to another line type.

Which carriers have numbers in area code 740?

31 carriers hold exchanges in 740 on record; the most: AT&T (175), Frontier (123) and Lumen (100). These are the original allocations: with number portability, a number may be served by another carrier today, which only a live carrier lookup (an HLR or MNP query) can tell.

How do I validate a 740 phone number?

In E.164 a 740 number matches ^\+1740[2-9]\d{6}$: +1, the area code, a central office code that does not start with 0 or 1, then four digits. Written nationally it reads (740) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.