(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 | (local directory assistance - dial 3 digits) |
| 412 | Pennsylvania |
| 413 | Massachusetts |
| 414 | Wisconsin |
| 415 | California |
| 416 | Ontario |
| 417 | Missouri |
| 418 | Quebec |
| 419 | Ohio |
| 420 | Arizona |
| 421 | (not assigned) |
| 422 | (reserved - easily recognizable number) |
| 423 | Tennessee |
| 424 | California |
| 425 | Washington |
| 426 | (not assigned) |
| 427 | (not assigned) |
| 428 | New Brunswick |
| 429 | (not assigned) |
| 430 | Texas |
| 431 | Manitoba |
| 432 | Texas |
| 433 | (reserved - easily recognizable number) |
| 434 | Virginia |
| 435 | Utah |
| 436 | Ohio |
| 437 | Ontario |
| 438 | Quebec |
| 439 | (not assigned) |
| 440 | Ohio |
| 441 | Bermuda |
| 442 | California |
| 443 | Maryland |
| 444 | (reserved - easily recognizable number) |
| 445 | Pennsylvania |
| 446 | (not assigned) |
| 447 | (Illinois) |
| 448 | Florida |
| 449 | (not assigned) |
| 450 | Quebec |
| 451 | (not assigned) |
| 452 | (not assigned) |
| 453 | (not assigned) |
| 454 | (not assigned) |
| 455 | (reserved - easily recognizable number) |
| 456 | (not assigned) |
| 457 | Louisiana |
| 458 | Oregon |
| 459 | (not assigned) |
| 460 | (reserved for Ontario) |
| 461 | (not assigned) |
| 462 | (not assigned) |
| 463 | Indiana |
| 464 | Illinois |
| 465 | (not assigned) |
| 466 | (reserved - easily recognizable number) |
| 467 | (not assigned) |
| 468 | Quebec |
| 469 | Texas |
| 470 | Georgia |
| 471 | (not assigned) |
| 472 | North Carolina |
| 473 | Grenada |
| 474 | 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