Area code 641

At a glance

Country code

+1

State

IA

Exchanges on record

605

Carriers on record

60

Most exchanges: Windstream 123, Verizon 47, UScellular 39.

The exchange map

Formats and patterns

Any 641 number, in E.164

^\+1641[2-9]\d{6}$

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

^\+1641(?:2(?:0[1-468]|1[04689]|2[0169]|3[0-49]|4[014-9]|5[1-356]|6[0157]|7[013-79]|8[02-9]|9[0-24-69])|3(?:[08][124]|[16]8|2[58]|[39]0|4[04]|5[14]|73)|4(?:0[28]|1[346-8]|2[056]|3[016]|[58][15])|5(?:0[46]|1[0246-8]|2[159]|30|4[18]|69|72|8[039]|9[06])|6(?:01|29|3[089]|4[03]|5[17]|[68]0|7[04]|9[01])|7(?:06|1[489]|29|[46]0|5[017]|7[07]|8[01]|9[09])|8(?:0[18]|18|[27][01]|31|4[09]|6[013]|8[018]|9[15])|9(?:0[1-39]|1[69]|31|54|80|9[017]))\d{4}$

^\+1641(?:2(?:0[579]|1[237]|2[3-578]|3[5-7]|4[23]|5[0479]|6[2-489]|78|9[378])|3(?:0[35-9]|1[57]|2[2-4679]|[34][235-9]|5[23578]|6[2-469]|7[27]|8[0578]|9[3-8])|4(?:0[37]|10|2[1-47-9]|3[23579]|4[0-79]|5[02-46-9]|6[4-69]|7[02-9]|8[2-46-9]|9[2-9])|5(?:0[127-9]|19|2[2-46-8]|3[13-6]|5[127]|6[125-8]|7[09]|8[124-8]|9[1-59])|6(?:08|1[239]|2[0-8]|3[124-7]|4[247-9]|5[2-689]|6[12457]|7[23568]|8[2-4]|9[236])|7(?:05|1[03]|2[2468]|3[24-79]|4[1-9]|5[2-68]|6[2-8]|7[2-5]|8[2-578]|9[1-8])|8(?:1[2469]|2[236-9]|3[24]|4[1-7]|5[346-8]|6[24-689]|7[2-467]|87|9[246-8])|9(?:05|2[0-79]|3[2-9]|4[2-46-9]|6[29]|8[235]|9[258]))\d{4}$

^\+1641(?:2(?:00|15|[27]2|[35]8|66|81)|3(?:00|1[06]|[24]1|34|5[69])|4(?:0[016]|48|61)|5(?:0[035]|[14]3|60|75)|6(?:0[09]|14|46|6[68]|7[17]|8[18])|7(?:1[57]|27|76)|8(?:0[02]|10|25|37)|9(?:00|55|66|77|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 641, with the exchanges allocated to it (the three digits after the area code).

Questions developers ask

Where is area code 641?

Area code 641 is in Iowa, in the United States: all 605 of its exchanges on record are there. From abroad it is dialled +1 641, then the seven-digit number.

Is a 641 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 605 exchanges on record in 641, 178 (29%) were allocated as mobile, 354 (59%) as fixed line, 52 (9%) as VoIP and 21 (3%) 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 641?

60 carriers hold exchanges in 641 on record; the most: Windstream (123), Verizon (47) and UScellular (39). 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 641 phone number?

In E.164 a 641 number matches ^\+1641[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 (641) 555-0123. The exchange patterns on this page narrow it to the exchanges allocated as mobile, fixed line or VoIP.