All Possible Area and Other Codes (400-499)
(assigned, not assigned, special, etc.)

The "North American Numbering Plan" has a myriad of area and special codes. This page covers all "possible" codes and other codes in the 400-499 range along with their status.

Important note: The status of area and other codes is constantly changing. This is the latest information we have.

codes in the 200-299 range
codes in the 300-399 range
codes in the 400-599 range - THIS PAGE
codes in the 500-599 range
codes in the 600-699 range
codes in the 700-799 range
codes in the 800-899 range
codes in the 900-999 range

Code
Description
400 (reserved - easily recognizable number)
401 Rhode Island
402 Nebraska
403 Alberta
404 Georgia
405 Oklahoma
406 Montana
407 Florida
408 California
409 Texas
410 Maryland
411 (directory assistance - dial 3 digits)
412 Pennsylvania
413 Massachusetts
414 Wisconsin
415 California
416 Ontario
417 Missouri
418 Quebec
419 Ohio
420 (not assigned)
421 (not assigned)
422 (reserved - easily recognizable number)
423 Tennessee
424 California
425 Washington
426 (not assigned)
427 (not assigned)
428 (reserved for New Brunswick)
429 (not assigned)
430 Texas
431 Manitoba
432 Texas
433 (reserved - easily recognizable number)
434 Virginia
435 Utah
436 (not assigned)
437 Ontario
438 Quebec
439 (not assigned)
440 Ohio
441 Bermuda
442 California
443 Maryland
444 (reserved - easily recognizable number)
445 Pennsylvania (active starting March, 2018, overlaying 215,267)
446 (not assigned)
447 (Illinois)
448 (not assigned)
449 (not assigned)
450 Quebec
451 (not assigned)
452 (not assigned)
453 (not assigned)
454 (not assigned)
455 (reserved - easily recognizable number)
456 (international calls - inbound)
457 (not assigned)
458 Oregon
459 (not assigned)
460 (reserved for Ontario)
461 (not assigned)
462 (not assigned)
463 Indiana
464 (reserved for Illinois)
465 (not assigned)
466 (reserved - easily recognizable number)
467 (not assigned)
468 (reserved for Quebec)
469 Texas
470 Georgia
471 (not assigned)
472 (not assigned)
473 Grenada
474 (reserved for Saskatchewan)
475 Connecticut
476 (not assigned)
477 (reserved - easily recognizable number)
478 Georgia
479 Arkansas
480 Arizona
481 (not assigned)
482 (not assigned)
483 (not assigned)
484 Pennsylvania
485 (not assigned)
486 (not assigned)
487 (reserved for Canada)
488 (reserved - easily recognizable number)
489 (not assigned)
490 (reserved for possible numbering expansion in the future)
491 (reserved for possible numbering expansion in the future)
492 (reserved for possible numbering expansion in the future)
493 (reserved for possible numbering expansion in the future)
494 (reserved for possible numbering expansion in the future)
495 (reserved for possible numbering expansion in the future)
496 (reserved for possible numbering expansion in the future)
497 (reserved for possible numbering expansion in the future)
498 (reserved for possible numbering expansion in the future)
499 (reserved for possible numbering expansion in the future)

codes in the 200-299 range
codes in the 300-399 range
codes in the 400-499 range - THIS PAGE
codes in the 500-599 range
codes in the 600-699 range
codes in the 700-799 range
codes in the 800-899 range
codes in the 900-999 range