Les adresses IP débutant par 203.231.3 sont fournies par Sejong Telecom, elles appartiennent au CIDR (Classless Inter-Domain Routing) 203.231.0.0/16, le bloc IP comprant les adresses de 203.231.0.0 à 203.231.255.255). Le numéro de système autonome (ASN) est 9848.
| ASN | 9848 |
| IP commençant par | 203.231.0.0 |
| IP se terminant par | 203.231.255.255 |
| Nom ASN | Sejong Telecom |
| CDIR | 203.231.0.0/16 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 07/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | KR | Korea, Republic of | - | Seoul | 37,5683 | 126,9778 | 2017-07-03 |
| MaxMind | KR | Corée du Sud | - | - | 37,5112 | 126,9741 | 2017-07-03 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 203.231.3.0 | 3420914432 | 0 |
| 203.231.3.1 | 3420914433 | 0 |
| 203.231.3.2 | 3420914434 | 0 |
| 203.231.3.3 | 3420914435 | 0 |
| 203.231.3.4 | 3420914436 | 0 |
| 203.231.3.5 | 3420914437 | 0 |
| 203.231.3.6 | 3420914438 | 0 |
| 203.231.3.7 | 3420914439 | 0 |
| 203.231.3.8 | 3420914440 | 0 |
| 203.231.3.9 | 3420914441 | 0 |
| 203.231.3.10 | 3420914442 | 0 |
| 203.231.3.11 | 3420914443 | 0 |
| 203.231.3.12 | 3420914444 | 0 |
| 203.231.3.13 | 3420914445 | 0 |
| 203.231.3.14 | 3420914446 | 0 |
| 203.231.3.15 | 3420914447 | 0 |
| 203.231.3.16 | 3420914448 | 0 |
| 203.231.3.17 | 3420914449 | 0 |
| 203.231.3.18 | 3420914450 | 0 |
| 203.231.3.19 | 3420914451 | 0 |
| 203.231.3.20 | 3420914452 | 0 |
| 203.231.3.21 | 3420914453 | 0 |
| 203.231.3.22 | 3420914454 | 0 |
| 203.231.3.23 | 3420914455 | 0 |
| 203.231.3.24 | 3420914456 | 0 |
| 203.231.3.25 | 3420914457 | 0 |
| 203.231.3.26 | 3420914458 | 0 |
| 203.231.3.27 | 3420914459 | 0 |
| 203.231.3.28 | 3420914460 | 0 |
| 203.231.3.29 | 3420914461 | 0 |
| 203.231.3.30 | 3420914462 | 0 |
| 203.231.3.31 | 3420914463 | 0 |
| 203.231.3.32 | 3420914464 | 0 |
| 203.231.3.33 | 3420914465 | 0 |
| 203.231.3.34 | 3420914466 | 0 |
| 203.231.3.35 | 3420914467 | 0 |
| 203.231.3.36 | 3420914468 | 0 |
| 203.231.3.37 | 3420914469 | 0 |
| 203.231.3.38 | 3420914470 | 0 |
| 203.231.3.39 | 3420914471 | 0 |
| 203.231.3.40 | 3420914472 | 0 |
| 203.231.3.41 | 3420914473 | 0 |
| 203.231.3.42 | 3420914474 | 0 |
| 203.231.3.43 | 3420914475 | 0 |
| 203.231.3.44 | 3420914476 | 0 |
| 203.231.3.45 | 3420914477 | 0 |
| 203.231.3.46 | 3420914478 | 0 |
| 203.231.3.47 | 3420914479 | 0 |
| 203.231.3.48 | 3420914480 | 0 |
| 203.231.3.49 | 3420914481 | 0 |
| 203.231.3.50 | 3420914482 | 0 |
| 203.231.3.51 | 3420914483 | 0 |
| 203.231.3.52 | 3420914484 | 0 |
| 203.231.3.53 | 3420914485 | 0 |
| 203.231.3.54 | 3420914486 | 0 |
| 203.231.3.55 | 3420914487 | 0 |
| 203.231.3.56 | 3420914488 | 0 |
| 203.231.3.57 | 3420914489 | 0 |
| 203.231.3.58 | 3420914490 | 0 |
| 203.231.3.59 | 3420914491 | 0 |
| 203.231.3.60 | 3420914492 | 0 |
| 203.231.3.61 | 3420914493 | 0 |
| 203.231.3.62 | 3420914494 | 0 |
| 203.231.3.63 | 3420914495 | 0 |
| 203.231.3.64 | 3420914496 | 0 |
| 203.231.3.65 | 3420914497 | 0 |
| 203.231.3.66 | 3420914498 | 0 |
| 203.231.3.67 | 3420914499 | 0 |
| 203.231.3.68 | 3420914500 | 0 |
| 203.231.3.69 | 3420914501 | 0 |
| 203.231.3.70 | 3420914502 | 0 |
| 203.231.3.71 | 3420914503 | 0 |
| 203.231.3.72 | 3420914504 | 0 |
| 203.231.3.73 | 3420914505 | 0 |
| 203.231.3.74 | 3420914506 | 0 |
| 203.231.3.75 | 3420914507 | 0 |
| 203.231.3.76 | 3420914508 | 0 |
| 203.231.3.77 | 3420914509 | 0 |
| 203.231.3.78 | 3420914510 | 0 |
| 203.231.3.79 | 3420914511 | 0 |
| 203.231.3.80 | 3420914512 | 0 |
| 203.231.3.81 | 3420914513 | 0 |
| 203.231.3.82 | 3420914514 | 0 |
| 203.231.3.83 | 3420914515 | 0 |
| 203.231.3.84 | 3420914516 | 0 |
| 203.231.3.85 | 3420914517 | 0 |