CitysDirectory
City of Chicago
Directory area code 773 and prefix 400 available at City of Chicago
Directory Numbers
+1 (773) 400-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.
773-400-00**
773-400-01**
773-400-02**
773-400-03**
773-400-04**
773-400-05**
773-400-06**
773-400-07**
773-400-08**
773-400-09**
773-400-10**
773-400-11**
773-400-12**
773-400-13**
773-400-14**
773-400-15**
773-400-16**
773-400-17**
773-400-18**
773-400-19**
773-400-20**
773-400-21**
773-400-22**
773-400-23**
773-400-24**
773-400-25**
773-400-26**
773-400-27**
773-400-28**
773-400-29**
773-400-30**
773-400-31**
773-400-32**
773-400-33**
773-400-34**
773-400-35**
773-400-36**
773-400-37**
773-400-38**
773-400-39**
773-400-40**
773-400-41**
773-400-42**
773-400-43**
773-400-44**
773-400-45**
773-400-46**
773-400-47**
773-400-48**
773-400-49**
773-400-50**
773-400-51**
773-400-52**
773-400-53**
773-400-54**
773-400-55**
773-400-56**
773-400-57**
773-400-58**
773-400-59**
773-400-60**
773-400-61**
773-400-62**
773-400-63**
773-400-64**
773-400-65**
773-400-66**
773-400-67**
773-400-68**
773-400-69**
773-400-70**
773-400-71**
773-400-72**
773-400-73**
773-400-74**
773-400-75**
773-400-76**
773-400-77**
773-400-78**
773-400-79**
773-400-80**
773-400-81**
773-400-82**
773-400-83**
773-400-84**
773-400-85**
773-400-86**
773-400-87**
773-400-88**
773-400-89**
773-400-90**
773-400-91**
773-400-92**
773-400-93**
773-400-94**
773-400-95**
773-400-96**
773-400-97**
773-400-98**
773-400-99**
Complete Phone Number
e.g. 111-222-3333
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