Die IP-Adresse 121.153.9 erfolgt über Korea Telecom, es hat gehören zu den GGDV (Classless Inter-Domain Routing) 121.128.0.0/11 (Bereich 121.128.0.0, 121.159.255.255). Die autonomen Systemnummer (ASN) ist 4766.
| ASN | 4766 |
| Ausgehend von IP | 121.128.0.0 |
| Beendigung durch IP | 121.159.255.255 |
| ASN-Namen | Korea Telecom |
| GGDV | 121.128.0.0/11 |
| Numerische IP | |
| Registrierung | apnic |
| Letztes update | 06.12.2018 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | KR | Südkorea | - | Asan | 36,7836 | 127,0042 | 2018-12-05 |
| MaxMind | KR | Südkorea | - | Yesan | 36,6776 | 126,8427 | 2018-12-05 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.153.9.0 | 2040072448 | 0 |
| 121.153.9.1 | 2040072449 | 0 |
| 121.153.9.2 | 2040072450 | 0 |
| 121.153.9.3 | 2040072451 | 0 |
| 121.153.9.4 | 2040072452 | 0 |
| 121.153.9.5 | 2040072453 | 0 |
| 121.153.9.6 | 2040072454 | 0 |
| 121.153.9.7 | 2040072455 | 0 |
| 121.153.9.8 | 2040072456 | 0 |
| 121.153.9.9 | 2040072457 | 0 |
| 121.153.9.10 | 2040072458 | 0 |
| 121.153.9.11 | 2040072459 | 0 |
| 121.153.9.12 | 2040072460 | 0 |
| 121.153.9.13 | 2040072461 | 0 |
| 121.153.9.14 | 2040072462 | 0 |
| 121.153.9.15 | 2040072463 | 0 |
| 121.153.9.16 | 2040072464 | 0 |
| 121.153.9.17 | 2040072465 | 0 |
| 121.153.9.18 | 2040072466 | 0 |
| 121.153.9.19 | 2040072467 | 0 |
| 121.153.9.20 | 2040072468 | 0 |
| 121.153.9.21 | 2040072469 | 0 |
| 121.153.9.22 | 2040072470 | 0 |
| 121.153.9.23 | 2040072471 | 0 |
| 121.153.9.24 | 2040072472 | 0 |
| 121.153.9.25 | 2040072473 | 0 |
| 121.153.9.26 | 2040072474 | 0 |
| 121.153.9.27 | 2040072475 | 0 |
| 121.153.9.28 | 2040072476 | 0 |
| 121.153.9.29 | 2040072477 | 0 |
| 121.153.9.30 | 2040072478 | 0 |
| 121.153.9.31 | 2040072479 | 0 |
| 121.153.9.32 | 2040072480 | 0 |
| 121.153.9.33 | 2040072481 | 0 |
| 121.153.9.34 | 2040072482 | 0 |
| 121.153.9.35 | 2040072483 | 0 |
| 121.153.9.36 | 2040072484 | 0 |
| 121.153.9.37 | 2040072485 | 0 |
| 121.153.9.38 | 2040072486 | 0 |
| 121.153.9.39 | 2040072487 | 0 |
| 121.153.9.40 | 2040072488 | 0 |
| 121.153.9.41 | 2040072489 | 0 |
| 121.153.9.42 | 2040072490 | 0 |
| 121.153.9.43 | 2040072491 | 0 |
| 121.153.9.44 | 2040072492 | 0 |
| 121.153.9.45 | 2040072493 | 0 |
| 121.153.9.46 | 2040072494 | 0 |
| 121.153.9.47 | 2040072495 | 0 |
| 121.153.9.48 | 2040072496 | 0 |
| 121.153.9.49 | 2040072497 | 0 |
| 121.153.9.50 | 2040072498 | 0 |
| 121.153.9.51 | 2040072499 | 0 |
| 121.153.9.52 | 2040072500 | 0 |
| 121.153.9.53 | 2040072501 | 0 |
| 121.153.9.54 | 2040072502 | 0 |
| 121.153.9.55 | 2040072503 | 0 |
| 121.153.9.56 | 2040072504 | 0 |
| 121.153.9.57 | 2040072505 | 0 |
| 121.153.9.58 | 2040072506 | 0 |
| 121.153.9.59 | 2040072507 | 0 |
| 121.153.9.60 | 2040072508 | 0 |
| 121.153.9.61 | 2040072509 | 0 |
| 121.153.9.62 | 2040072510 | 0 |
| 121.153.9.63 | 2040072511 | 0 |
| 121.153.9.64 | 2040072512 | 0 |
| 121.153.9.65 | 2040072513 | 0 |
| 121.153.9.66 | 2040072514 | 0 |
| 121.153.9.67 | 2040072515 | 0 |
| 121.153.9.68 | 2040072516 | 0 |
| 121.153.9.69 | 2040072517 | 0 |
| 121.153.9.70 | 2040072518 | 0 |
| 121.153.9.71 | 2040072519 | 0 |
| 121.153.9.72 | 2040072520 | 0 |
| 121.153.9.73 | 2040072521 | 0 |
| 121.153.9.74 | 2040072522 | 0 |
| 121.153.9.75 | 2040072523 | 0 |
| 121.153.9.76 | 2040072524 | 0 |
| 121.153.9.77 | 2040072525 | 0 |
| 121.153.9.78 | 2040072526 | 0 |
| 121.153.9.79 | 2040072527 | 0 |
| 121.153.9.80 | 2040072528 | 0 |
| 121.153.9.81 | 2040072529 | 0 |
| 121.153.9.82 | 2040072530 | 0 |
| 121.153.9.83 | 2040072531 | 0 |
| 121.153.9.84 | 2040072532 | 0 |
| 121.153.9.85 | 2040072533 | 0 |