| NPA | Region | Overlay |
|---|---|---|
| 601 | Mississippi | 601/769 |
| 602 | Arizona | 480/602/623 |
| 603 | New Hampshire | |
| 604 | British Columbia | 236/257/604/672/778 |
| 605 | South Dakota | |
| 606 | Kentucky | |
| 607 | New York | |
| 608 | Wisconsin | 353/608 |
| 609 | New Jersey | 609/640 |
| 610 | Pennsylvania | 484/610 |
| 612 | Minnesota | |
| 613 | Ontario | 343/613/753 |
| Québec | 343/613/753 | |
| 614 | Ohio | 380/614 |
| 615 | Tennessee | 615/629 |
| 616 | Michigan | |
| 617 | Massachusetts | 617/857 |
| 618 | Illinois | 618/730 |
| 619 | California | 619/858 |
| 620 | Kansas | |
| 621 | Texas | 281/346/621/713/832 |
| 623 | Arizona | 480/602/623 |
| 624 | New York | 624/716 |
| 626 | California | |
| 628 | California | 415/628 |
| 629 | Tennessee | 615/629 |
| 630 | Illinois | 331/630 |
| 631 | New York | 631/934 |
| 636 | Missouri | |
| 639 | Saskatchewan | 306/474/639 |
| 640 | New Jersey | 609/640 |
| 641 | Iowa | |
| 645 | Florida | 305/645/786 |
| 646 | New York | 212/332/646/917 |
| 647 | Ontario | 416/437/647/942 |
| 649 | Turks and Caicos | |
| 650 | California | |
| 651 | Minnesota | |
| 656 | Florida | 656/813 |
| 657 | California | 657/714 |
| 658 | Jamaica | 658/876 |
| 659 | Alabama | 205/659 |
| 660 | Missouri | |
| 661 | California | |
| 662 | Mississippi | 471/662 |
| 664 | Montserrat | |
| 667 | Maryland | 410/443/667 |
| 669 | California | 408/669 |
| 670 | Northern Mariana Islands | |
| 671 | Guam | |
| 672 | British Columbia | 236/250/257/672/778; 236/257/604/672/778 |
| 678 | Georgia | 404/470/678/943; 470/678/770/943 |
| 679 | Michigan | 313/679 |
| 680 | New York | 315/680 |
| 681 | West Virginia | 304/681 |
| 682 | Texas | 682/817 |
| 683 | Ontario | 249/683/705 |
| 684 | American Samoa | |
| 686 | Virginia | 686/804 |
| 689 | Florida | 321/407/689 |
Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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