L'indirizzo IP 42.13.21 è fornito da SK Telecom, che è di proprietà del CIDR (Classless Inter-Domain Routing) 42.16.0.0/12, IP tra 42.16.0.0 a 42.31.255.255 ). Il numero di sistema autonomo (ASN) è 9644.
| ASN | 9644 |
| IP inizia con | 42.16.0.0 |
| IP finale con | 42.31.255.255 |
| ASN Nome | SK Telecom |
| CDIR | 42.16.0.0/12 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 07/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | KR | Korea, Republic of | - | Seoul | 37,5683 | 126,9778 | 2017-07-07 |
| MaxMind | KR | Republic of Korea | - | - | 37,5112 | 126,9741 | 2017-07-07 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 42.13.21.0 | 705500416 | 0 |
| 42.13.21.1 | 705500417 | 0 |
| 42.13.21.2 | 705500418 | 0 |
| 42.13.21.3 | 705500419 | 0 |
| 42.13.21.4 | 705500420 | 0 |
| 42.13.21.5 | 705500421 | 0 |
| 42.13.21.6 | 705500422 | 0 |
| 42.13.21.7 | 705500423 | 0 |
| 42.13.21.8 | 705500424 | 0 |
| 42.13.21.9 | 705500425 | 0 |
| 42.13.21.10 | 705500426 | 0 |
| 42.13.21.11 | 705500427 | 0 |
| 42.13.21.12 | 705500428 | 0 |
| 42.13.21.13 | 705500429 | 0 |
| 42.13.21.14 | 705500430 | 0 |
| 42.13.21.15 | 705500431 | 0 |
| 42.13.21.16 | 705500432 | 0 |
| 42.13.21.17 | 705500433 | 0 |
| 42.13.21.18 | 705500434 | 0 |
| 42.13.21.19 | 705500435 | 0 |
| 42.13.21.20 | 705500436 | 0 |
| 42.13.21.21 | 705500437 | 0 |
| 42.13.21.22 | 705500438 | 0 |
| 42.13.21.23 | 705500439 | 0 |
| 42.13.21.24 | 705500440 | 0 |
| 42.13.21.25 | 705500441 | 0 |
| 42.13.21.26 | 705500442 | 0 |
| 42.13.21.27 | 705500443 | 0 |
| 42.13.21.28 | 705500444 | 0 |
| 42.13.21.29 | 705500445 | 0 |
| 42.13.21.30 | 705500446 | 0 |
| 42.13.21.31 | 705500447 | 0 |
| 42.13.21.32 | 705500448 | 0 |
| 42.13.21.33 | 705500449 | 0 |
| 42.13.21.34 | 705500450 | 0 |
| 42.13.21.35 | 705500451 | 0 |
| 42.13.21.36 | 705500452 | 0 |
| 42.13.21.37 | 705500453 | 0 |
| 42.13.21.38 | 705500454 | 0 |
| 42.13.21.39 | 705500455 | 0 |
| 42.13.21.40 | 705500456 | 0 |
| 42.13.21.41 | 705500457 | 0 |
| 42.13.21.42 | 705500458 | 0 |
| 42.13.21.43 | 705500459 | 0 |
| 42.13.21.44 | 705500460 | 0 |
| 42.13.21.45 | 705500461 | 0 |
| 42.13.21.46 | 705500462 | 0 |
| 42.13.21.47 | 705500463 | 0 |
| 42.13.21.48 | 705500464 | 0 |
| 42.13.21.49 | 705500465 | 0 |
| 42.13.21.50 | 705500466 | 0 |
| 42.13.21.51 | 705500467 | 0 |
| 42.13.21.52 | 705500468 | 0 |
| 42.13.21.53 | 705500469 | 0 |
| 42.13.21.54 | 705500470 | 0 |
| 42.13.21.55 | 705500471 | 0 |
| 42.13.21.56 | 705500472 | 0 |
| 42.13.21.57 | 705500473 | 0 |
| 42.13.21.58 | 705500474 | 0 |
| 42.13.21.59 | 705500475 | 0 |
| 42.13.21.60 | 705500476 | 0 |
| 42.13.21.61 | 705500477 | 0 |
| 42.13.21.62 | 705500478 | 0 |
| 42.13.21.63 | 705500479 | 0 |
| 42.13.21.64 | 705500480 | 0 |
| 42.13.21.65 | 705500481 | 0 |
| 42.13.21.66 | 705500482 | 0 |
| 42.13.21.67 | 705500483 | 0 |
| 42.13.21.68 | 705500484 | 0 |
| 42.13.21.69 | 705500485 | 0 |
| 42.13.21.70 | 705500486 | 0 |
| 42.13.21.71 | 705500487 | 0 |
| 42.13.21.72 | 705500488 | 0 |
| 42.13.21.73 | 705500489 | 0 |
| 42.13.21.74 | 705500490 | 0 |
| 42.13.21.75 | 705500491 | 0 |
| 42.13.21.76 | 705500492 | 0 |
| 42.13.21.77 | 705500493 | 0 |
| 42.13.21.78 | 705500494 | 0 |
| 42.13.21.79 | 705500495 | 0 |
| 42.13.21.80 | 705500496 | 0 |
| 42.13.21.81 | 705500497 | 0 |
| 42.13.21.82 | 705500498 | 0 |
| 42.13.21.83 | 705500499 | 0 |
| 42.13.21.84 | 705500500 | 0 |
| 42.13.21.85 | 705500501 | 0 |