Les adresses IP débutant par 121.136.2 sont fournies par Korea Telecom, elles appartiennent au CIDR (Classless Inter-Domain Routing) 121.128.0.0/11, le bloc IP comprant les adresses de 121.128.0.0 à 121.159.255.255). Le numéro de système autonome (ASN) est 4766.
| ASN | 4766 |
| IP commençant par | 121.128.0.0 |
| IP se terminant par | 121.159.255.255 |
| Nom ASN | Korea Telecom |
| CDIR | 121.128.0.0/11 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 28/01/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | KR | Corée du Sud | - | Wonju | 37,3514 | 127,9453 | 2019-01-28 |
| MaxMind | KR | Corée du Sud | - | Suwon-si | 37,2911 | 127,0089 | 2019-01-28 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.136.2.0 | 2038956544 | 0 |
| 121.136.2.1 | 2038956545 | 0 |
| 121.136.2.2 | 2038956546 | 0 |
| 121.136.2.3 | 2038956547 | 0 |
| 121.136.2.4 | 2038956548 | 0 |
| 121.136.2.5 | 2038956549 | 0 |
| 121.136.2.6 | 2038956550 | 0 |
| 121.136.2.7 | 2038956551 | 0 |
| 121.136.2.8 | 2038956552 | 0 |
| 121.136.2.9 | 2038956553 | 0 |
| 121.136.2.10 | 2038956554 | 0 |
| 121.136.2.11 | 2038956555 | 0 |
| 121.136.2.12 | 2038956556 | 0 |
| 121.136.2.13 | 2038956557 | 0 |
| 121.136.2.14 | 2038956558 | 0 |
| 121.136.2.15 | 2038956559 | 0 |
| 121.136.2.16 | 2038956560 | 0 |
| 121.136.2.17 | 2038956561 | 0 |
| 121.136.2.18 | 2038956562 | 0 |
| 121.136.2.19 | 2038956563 | 0 |
| 121.136.2.20 | 2038956564 | 0 |
| 121.136.2.21 | 2038956565 | 0 |
| 121.136.2.22 | 2038956566 | 0 |
| 121.136.2.23 | 2038956567 | 0 |
| 121.136.2.24 | 2038956568 | 0 |
| 121.136.2.25 | 2038956569 | 0 |
| 121.136.2.26 | 2038956570 | 0 |
| 121.136.2.27 | 2038956571 | 0 |
| 121.136.2.28 | 2038956572 | 0 |
| 121.136.2.29 | 2038956573 | 0 |
| 121.136.2.30 | 2038956574 | 0 |
| 121.136.2.31 | 2038956575 | 0 |
| 121.136.2.32 | 2038956576 | 0 |
| 121.136.2.33 | 2038956577 | 0 |
| 121.136.2.34 | 2038956578 | 0 |
| 121.136.2.35 | 2038956579 | 0 |
| 121.136.2.36 | 2038956580 | 0 |
| 121.136.2.37 | 2038956581 | 0 |
| 121.136.2.38 | 2038956582 | 0 |
| 121.136.2.39 | 2038956583 | 0 |
| 121.136.2.40 | 2038956584 | 0 |
| 121.136.2.41 | 2038956585 | 0 |
| 121.136.2.42 | 2038956586 | 0 |
| 121.136.2.43 | 2038956587 | 0 |
| 121.136.2.44 | 2038956588 | 0 |
| 121.136.2.45 | 2038956589 | 0 |
| 121.136.2.46 | 2038956590 | 0 |
| 121.136.2.47 | 2038956591 | 0 |
| 121.136.2.48 | 2038956592 | 0 |
| 121.136.2.49 | 2038956593 | 0 |
| 121.136.2.50 | 2038956594 | 0 |
| 121.136.2.51 | 2038956595 | 0 |
| 121.136.2.52 | 2038956596 | 0 |
| 121.136.2.53 | 2038956597 | 0 |
| 121.136.2.54 | 2038956598 | 0 |
| 121.136.2.55 | 2038956599 | 0 |
| 121.136.2.56 | 2038956600 | 0 |
| 121.136.2.57 | 2038956601 | 0 |
| 121.136.2.58 | 2038956602 | 0 |
| 121.136.2.59 | 2038956603 | 0 |
| 121.136.2.60 | 2038956604 | 0 |
| 121.136.2.61 | 2038956605 | 0 |
| 121.136.2.62 | 2038956606 | 0 |
| 121.136.2.63 | 2038956607 | 0 |
| 121.136.2.64 | 2038956608 | 0 |
| 121.136.2.65 | 2038956609 | 0 |
| 121.136.2.66 | 2038956610 | 0 |
| 121.136.2.67 | 2038956611 | 0 |
| 121.136.2.68 | 2038956612 | 0 |
| 121.136.2.69 | 2038956613 | 0 |
| 121.136.2.70 | 2038956614 | 0 |
| 121.136.2.71 | 2038956615 | 0 |
| 121.136.2.72 | 2038956616 | 0 |
| 121.136.2.73 | 2038956617 | 0 |
| 121.136.2.74 | 2038956618 | 0 |
| 121.136.2.75 | 2038956619 | 0 |
| 121.136.2.76 | 2038956620 | 0 |
| 121.136.2.77 | 2038956621 | 0 |
| 121.136.2.78 | 2038956622 | 0 |
| 121.136.2.79 | 2038956623 | 0 |
| 121.136.2.80 | 2038956624 | 0 |
| 121.136.2.81 | 2038956625 | 0 |
| 121.136.2.82 | 2038956626 | 0 |
| 121.136.2.83 | 2038956627 | 0 |
| 121.136.2.84 | 2038956628 | 0 |
| 121.136.2.85 | 2038956629 | 0 |