Area 6XX phone numbers
-
600
Not area code
-
601
Mississippi
-
602
Arizona
-
603
New Hampshire
-
604
Not area code
-
605
Iowa
-
606
Kentucky
-
607
New York
-
608
Wisconsin
-
609
New Jersey
-
610
Pennsylvania
-
611
Not area code
-
612
Minnesota
-
614
Ohio
-
615
Tennessee
-
616
Michigan
-
617
Massachusetts
-
618
Illinois
-
619
California
-
620
Kansas
-
621
Not area code
-
622
Not area code
-
623
Arizona
-
624
Not area code
-
625
Not area code
-
626
California
-
627
Not area code
-
628
California
-
629
Tennessee
-
630
Illinois
-
631
New York
-
632
Not area code
-
633
Not area code
-
634
Not area code
-
635
Not area code
-
636
Missouri
-
637
Not area code
-
638
Not area code
-
639
Not area code
-
640
New Jersey
-
641
Iowa
-
642
Not area code
-
643
Not area code
-
644
Not area code
-
645
Not area code
-
646
New York
-
647
Not area code
-
648
Not area code
-
649
Not area code
-
650
California
-
651
Minnesota
-
652
Not area code
-
653
Not area code
-
654
Not area code
-
655
Not area code
-
656
Florida
-
657
California
-
658
Not area code
-
659
Alabama
-
660
Missouri
-
661
California
-
662
Mississippi
-
663
Not area code
-
664
Not area code
-
665
Not area code
-
666
Not area code
-
667
Maryland
-
668
Not area code
-
669
California
-
670
Northern Mariana Islands
-
671
Guam
-
672
Not area code
-
673
Not area code
-
674
Not area code
-
675
Not area code
-
676
Not area code
-
677
Not area code
-
678
Georgia
-
679
Not area code
-
680
New York
-
681
West Virginia
-
682
Texas
-
683
Not area code
-
684
American Samoa
-
685
Not area code
-
686
Not area code
-
687
Not area code
-
688
Not area code
-
689
Florida
-
690
Not area code
-
691
Not area code
-
692
Not area code
-
693
Not area code
-
694
Not area code
-
695
Not area code
-
696
Not area code
-
697
Not area code
-
698
Not area code
-
699
Not area code