L'indirizzo IP 121.155.9 è fornito da Korea Telecom, che è di proprietà del CIDR (Classless Inter-Domain Routing) 121.128.0.0/11, IP tra 121.128.0.0 a 121.159.255.255 ). Il numero di sistema autonomo (ASN) è 4766.
| ASN | 4766 |
| IP inizia con | 121.128.0.0 |
| IP finale con | 121.159.255.255 |
| ASN Nome | Korea Telecom |
| CDIR | 121.128.0.0/11 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 13/01/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | KR | Korea, Republic of | - | Seoul | 37,5683 | 126,9778 | 2018-01-12 |
| MaxMind | KR | Republic of Korea | - | Wonju | 37,3514 | 127,9453 | 2018-01-12 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.155.9.0 | 2040203520 | 0 |
| 121.155.9.1 | 2040203521 | 0 |
| 121.155.9.2 | 2040203522 | 0 |
| 121.155.9.3 | 2040203523 | 0 |
| 121.155.9.4 | 2040203524 | 0 |
| 121.155.9.5 | 2040203525 | 0 |
| 121.155.9.6 | 2040203526 | 0 |
| 121.155.9.7 | 2040203527 | 0 |
| 121.155.9.8 | 2040203528 | 0 |
| 121.155.9.9 | 2040203529 | 0 |
| 121.155.9.10 | 2040203530 | 0 |
| 121.155.9.11 | 2040203531 | 0 |
| 121.155.9.12 | 2040203532 | 0 |
| 121.155.9.13 | 2040203533 | 0 |
| 121.155.9.14 | 2040203534 | 0 |
| 121.155.9.15 | 2040203535 | 0 |
| 121.155.9.16 | 2040203536 | 0 |
| 121.155.9.17 | 2040203537 | 0 |
| 121.155.9.18 | 2040203538 | 0 |
| 121.155.9.19 | 2040203539 | 0 |
| 121.155.9.20 | 2040203540 | 0 |
| 121.155.9.21 | 2040203541 | 0 |
| 121.155.9.22 | 2040203542 | 0 |
| 121.155.9.23 | 2040203543 | 0 |
| 121.155.9.24 | 2040203544 | 0 |
| 121.155.9.25 | 2040203545 | 0 |
| 121.155.9.26 | 2040203546 | 0 |
| 121.155.9.27 | 2040203547 | 0 |
| 121.155.9.28 | 2040203548 | 0 |
| 121.155.9.29 | 2040203549 | 0 |
| 121.155.9.30 | 2040203550 | 0 |
| 121.155.9.31 | 2040203551 | 0 |
| 121.155.9.32 | 2040203552 | 0 |
| 121.155.9.33 | 2040203553 | 0 |
| 121.155.9.34 | 2040203554 | 0 |
| 121.155.9.35 | 2040203555 | 0 |
| 121.155.9.36 | 2040203556 | 0 |
| 121.155.9.37 | 2040203557 | 0 |
| 121.155.9.38 | 2040203558 | 0 |
| 121.155.9.39 | 2040203559 | 0 |
| 121.155.9.40 | 2040203560 | 0 |
| 121.155.9.41 | 2040203561 | 0 |
| 121.155.9.42 | 2040203562 | 0 |
| 121.155.9.43 | 2040203563 | 0 |
| 121.155.9.44 | 2040203564 | 0 |
| 121.155.9.45 | 2040203565 | 0 |
| 121.155.9.46 | 2040203566 | 0 |
| 121.155.9.47 | 2040203567 | 0 |
| 121.155.9.48 | 2040203568 | 0 |
| 121.155.9.49 | 2040203569 | 0 |
| 121.155.9.50 | 2040203570 | 0 |
| 121.155.9.51 | 2040203571 | 0 |
| 121.155.9.52 | 2040203572 | 0 |
| 121.155.9.53 | 2040203573 | 0 |
| 121.155.9.54 | 2040203574 | 0 |
| 121.155.9.55 | 2040203575 | 0 |
| 121.155.9.56 | 2040203576 | 0 |
| 121.155.9.57 | 2040203577 | 0 |
| 121.155.9.58 | 2040203578 | 0 |
| 121.155.9.59 | 2040203579 | 0 |
| 121.155.9.60 | 2040203580 | 0 |
| 121.155.9.61 | 2040203581 | 0 |
| 121.155.9.62 | 2040203582 | 0 |
| 121.155.9.63 | 2040203583 | 0 |
| 121.155.9.64 | 2040203584 | 0 |
| 121.155.9.65 | 2040203585 | 0 |
| 121.155.9.66 | 2040203586 | 0 |
| 121.155.9.67 | 2040203587 | 0 |
| 121.155.9.68 | 2040203588 | 0 |
| 121.155.9.69 | 2040203589 | 0 |
| 121.155.9.70 | 2040203590 | 0 |
| 121.155.9.71 | 2040203591 | 0 |
| 121.155.9.72 | 2040203592 | 0 |
| 121.155.9.73 | 2040203593 | 0 |
| 121.155.9.74 | 2040203594 | 0 |
| 121.155.9.75 | 2040203595 | 0 |
| 121.155.9.76 | 2040203596 | 0 |
| 121.155.9.77 | 2040203597 | 0 |
| 121.155.9.78 | 2040203598 | 0 |
| 121.155.9.79 | 2040203599 | 0 |
| 121.155.9.80 | 2040203600 | 0 |
| 121.155.9.81 | 2040203601 | 0 |
| 121.155.9.82 | 2040203602 | 0 |
| 121.155.9.83 | 2040203603 | 0 |
| 121.155.9.84 | 2040203604 | 0 |
| 121.155.9.85 | 2040203605 | 0 |