CitysDirectory
City of Chicago
Directory area code 312 and prefix 640 available at City of Chicago
Directory Numbers
+1 (312) 640-XXXX
Here are the components:
Country Code: +1 (both the USA and Canada share the same country code).
Area Code: A 3-digit code that designates a specific geographic area or region.
Prefix: A 3-digit code that narrows the location within the area covered by the area code.
Line Number: A 4-digit number unique to the individual or business within that prefix.
312-640-00**
312-640-01**
312-640-02**
312-640-03**
312-640-04**
312-640-05**
312-640-06**
312-640-07**
312-640-08**
312-640-09**
312-640-10**
312-640-11**
312-640-12**
312-640-13**
312-640-14**
312-640-15**
312-640-16**
312-640-17**
312-640-18**
312-640-19**
312-640-20**
312-640-21**
312-640-22**
312-640-23**
312-640-24**
312-640-25**
312-640-26**
312-640-27**
312-640-28**
312-640-29**
312-640-30**
312-640-31**
312-640-32**
312-640-33**
312-640-34**
312-640-35**
312-640-36**
312-640-37**
312-640-38**
312-640-39**
312-640-40**
312-640-41**
312-640-42**
312-640-43**
312-640-44**
312-640-45**
312-640-46**
312-640-47**
312-640-48**
312-640-49**
312-640-50**
312-640-51**
312-640-52**
312-640-53**
312-640-54**
312-640-55**
312-640-56**
312-640-57**
312-640-58**
312-640-59**
312-640-60**
312-640-61**
312-640-62**
312-640-63**
312-640-64**
312-640-65**
312-640-66**
312-640-67**
312-640-68**
312-640-69**
312-640-70**
312-640-71**
312-640-72**
312-640-73**
312-640-74**
312-640-75**
312-640-76**
312-640-77**
312-640-78**
312-640-79**
312-640-80**
312-640-81**
312-640-82**
312-640-83**
312-640-84**
312-640-85**
312-640-86**
312-640-87**
312-640-88**
312-640-89**
312-640-90**
312-640-91**
312-640-92**
312-640-93**
312-640-94**
312-640-95**
312-640-96**
312-640-97**
312-640-98**
312-640-99**
Complete Phone Number
e.g. 111-222-3333
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