Die IP-Adresse 121.157.5 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 | 26.03.2018 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | KR | Südkorea | - | Cheonan | 36,8167 | 127,1667 | 2018-03-26 |
| MaxMind | KR | Südkorea | - | - | 37,5112 | 126,9741 | 2018-03-26 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.157.5.0 | 2040333568 | 0 |
| 121.157.5.1 | 2040333569 | 0 |
| 121.157.5.2 | 2040333570 | 0 |
| 121.157.5.3 | 2040333571 | 0 |
| 121.157.5.4 | 2040333572 | 0 |
| 121.157.5.5 | 2040333573 | 0 |
| 121.157.5.6 | 2040333574 | 0 |
| 121.157.5.7 | 2040333575 | 0 |
| 121.157.5.8 | 2040333576 | 0 |
| 121.157.5.9 | 2040333577 | 0 |
| 121.157.5.10 | 2040333578 | 0 |
| 121.157.5.11 | 2040333579 | 0 |
| 121.157.5.12 | 2040333580 | 0 |
| 121.157.5.13 | 2040333581 | 0 |
| 121.157.5.14 | 2040333582 | 0 |
| 121.157.5.15 | 2040333583 | 0 |
| 121.157.5.16 | 2040333584 | 0 |
| 121.157.5.17 | 2040333585 | 0 |
| 121.157.5.18 | 2040333586 | 0 |
| 121.157.5.19 | 2040333587 | 0 |
| 121.157.5.20 | 2040333588 | 0 |
| 121.157.5.21 | 2040333589 | 0 |
| 121.157.5.22 | 2040333590 | 0 |
| 121.157.5.23 | 2040333591 | 0 |
| 121.157.5.24 | 2040333592 | 0 |
| 121.157.5.25 | 2040333593 | 0 |
| 121.157.5.26 | 2040333594 | 0 |
| 121.157.5.27 | 2040333595 | 0 |
| 121.157.5.28 | 2040333596 | 0 |
| 121.157.5.29 | 2040333597 | 0 |
| 121.157.5.30 | 2040333598 | 0 |
| 121.157.5.31 | 2040333599 | 0 |
| 121.157.5.32 | 2040333600 | 0 |
| 121.157.5.33 | 2040333601 | 0 |
| 121.157.5.34 | 2040333602 | 0 |
| 121.157.5.35 | 2040333603 | 0 |
| 121.157.5.36 | 2040333604 | 0 |
| 121.157.5.37 | 2040333605 | 0 |
| 121.157.5.38 | 2040333606 | 0 |
| 121.157.5.39 | 2040333607 | 0 |
| 121.157.5.40 | 2040333608 | 0 |
| 121.157.5.41 | 2040333609 | 0 |
| 121.157.5.42 | 2040333610 | 0 |
| 121.157.5.43 | 2040333611 | 0 |
| 121.157.5.44 | 2040333612 | 0 |
| 121.157.5.45 | 2040333613 | 0 |
| 121.157.5.46 | 2040333614 | 0 |
| 121.157.5.47 | 2040333615 | 0 |
| 121.157.5.48 | 2040333616 | 0 |
| 121.157.5.49 | 2040333617 | 0 |
| 121.157.5.50 | 2040333618 | 0 |
| 121.157.5.51 | 2040333619 | 0 |
| 121.157.5.52 | 2040333620 | 0 |
| 121.157.5.53 | 2040333621 | 0 |
| 121.157.5.54 | 2040333622 | 0 |
| 121.157.5.55 | 2040333623 | 0 |
| 121.157.5.56 | 2040333624 | 0 |
| 121.157.5.57 | 2040333625 | 0 |
| 121.157.5.58 | 2040333626 | 0 |
| 121.157.5.59 | 2040333627 | 0 |
| 121.157.5.60 | 2040333628 | 0 |
| 121.157.5.61 | 2040333629 | 0 |
| 121.157.5.62 | 2040333630 | 0 |
| 121.157.5.63 | 2040333631 | 0 |
| 121.157.5.64 | 2040333632 | 0 |
| 121.157.5.65 | 2040333633 | 0 |
| 121.157.5.66 | 2040333634 | 0 |
| 121.157.5.67 | 2040333635 | 0 |
| 121.157.5.68 | 2040333636 | 0 |
| 121.157.5.69 | 2040333637 | 0 |
| 121.157.5.70 | 2040333638 | 0 |
| 121.157.5.71 | 2040333639 | 0 |
| 121.157.5.72 | 2040333640 | 0 |
| 121.157.5.73 | 2040333641 | 0 |
| 121.157.5.74 | 2040333642 | 0 |
| 121.157.5.75 | 2040333643 | 0 |
| 121.157.5.76 | 2040333644 | 0 |
| 121.157.5.77 | 2040333645 | 0 |
| 121.157.5.78 | 2040333646 | 0 |
| 121.157.5.79 | 2040333647 | 0 |
| 121.157.5.80 | 2040333648 | 0 |
| 121.157.5.81 | 2040333649 | 0 |
| 121.157.5.82 | 2040333650 | 0 |
| 121.157.5.83 | 2040333651 | 0 |
| 121.157.5.84 | 2040333652 | 0 |
| 121.157.5.85 | 2040333653 | 0 |