163.221.74.0/24
BGP Announced
| AS | CIDR | Description |
|---|---|---|
| AS131158 |
163.221.0.0/16
|
NAIST-AS - Nara Institute of Science and Technology, National University Corporation, JP |
Real Time BGP Data
| AS / Info | Prefix | AS Path |
|---|---|---|
| Real-time BGP data for 163.221.74.0/24 is loaded by JavaScript after the page renders and is not part of this page's HTML. | ||
Reverse DNS List (Total:148)
| IP | Host | DateTime |
|---|---|---|
| 163.221.74.1 | ex-core1-v74.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.6 | arp-74-6.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.7 | arp-74-7.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.11 | ws22ad001.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.12 | ws22ad002.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.13 | ws22ad003.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.14 | ws22ad004.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.15 | ws22ad005.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.16 | ws22ad006.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.17 | ws22ad007.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.18 | ws22ad008.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.19 | ws22ad009.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.20 | ws22ad010.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.21 | ws22ad011.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.22 | ws22ad012.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.23 | ws22ad013.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.24 | ws22ad014.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.25 | ws22ad015.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.26 | ws22ad016.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.27 | ws22ad017.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.28 | ws22ad018.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.29 | ws22ad019.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.30 | ws22ad020.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.31 | ws22ad021.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.32 | ws22ad022.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.33 | ws22ad023.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.34 | ws22ad024.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.35 | ws22ad025.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.36 | ws22ad026.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.37 | ws22ad027.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.38 | ws22ad028.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.39 | ws22ad029.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.40 | ws22ad030.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.41 | ws22ad031.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.42 | ws22ad032.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.43 | ws22ad033.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.44 | ws22ad034.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.45 | ws22ad035.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.46 | ws22ad036.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.47 | ws22ad037.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.48 | ws22ad038.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.49 | ws22ad039.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.50 | ws22ad040.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.51 | ws22ad041.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.52 | ws22ad042.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.53 | ws22ad043.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.54 | ws22ad044.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.55 | ws22ad045.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.56 | ws22ad046.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.57 | ws22ad047.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.58 | ws22ad048.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.59 | ws22ad049.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.60 | ws22ad050.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.61 | ws22ad051.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.62 | ws22ad052.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.63 | ws22ad053.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.64 | ws22ad054.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.65 | ws22ad055.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.66 | ws22ad056.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.67 | ws22ad057.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.68 | ws22ad058.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.69 | ws22ad059.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.70 | ws22ad060.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.71 | ws22ad061.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.72 | ws22ad062.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.73 | ws22ad063.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.74 | ws22ad064.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.75 | ws22ad065.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.91 | ws23ad001.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.92 | ws23ad002.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.93 | ws23ad003.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.94 | ws23ad004.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.95 | ws23ad005.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.96 | ws23ad006.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.97 | ws23ad007.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.98 | ws23ad008.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.99 | ws23ad009.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.100 | ws23ad010.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.101 | ws23ad011.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.102 | ws23ad012.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.103 | ws23ad013.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.104 | ws23ad014.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.105 | ws23ad015.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.106 | ws23ad016.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.107 | ws23ad017.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.109 | ws23ad019.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.110 | ws23ad020.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.111 | ws23ad021.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.112 | ws23ad022.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.113 | ws23ad023.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.114 | ws23ad024.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.121 | ws23ad031.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.122 | ws23ad032.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.123 | ws23ad033.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.124 | ws23ad034.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.125 | ws23ad035.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.171 | ws24ad001.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.172 | ws24ad002.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.173 | ws24ad003.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.174 | ws24ad004.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.175 | ws24ad005.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.176 | ws24ad006.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.177 | ws24ad007.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.178 | ws24ad008.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.179 | ws24ad009.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.180 | ws24ad010.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.181 | ws24ad011.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.182 | ws24ad012.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.183 | ws24ad013.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.184 | ws24ad014.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.185 | ws24ad015.naist.jp | 2026-09-13 22:08:30 |
| 163.221.74.186 | ws24ad016.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.191 | ws24ad021.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.192 | ws24ad022.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.193 | ws24ad023.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.194 | ws24ad024.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.195 | ws24ad025.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.196 | ws24ad026.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.197 | ws24ad027.naist.jp | 2026-09-13 22:08:30 |
| 163.221.74.198 | ws24ad028.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.199 | ws24ad029.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.200 | ws24ad030.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.201 | ws24ad031.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.202 | ws24ad032.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.203 | ws24ad033.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.204 | ws24ad034.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.205 | ws24ad035.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.206 | ws24ad036.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.208 | ws24ad038.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.209 | ws24ad039.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.210 | ws24ad040.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.211 | ws24ad041.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.212 | ws24ad042.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.213 | ws24ad043.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.214 | ws24ad044.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.216 | ws24ad046.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.217 | ws24ad047.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.218 | ws24ad048.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.219 | ws24ad049.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.221 | ws24ad051.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.222 | ws24ad052.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.223 | ws24ad053.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.224 | ws24ad054.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.225 | ws24ad055.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.226 | ws24ad056.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.227 | ws24ad057.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.253 | nesic-pc1-v74.naist.jp | 2026-09-12 18:59:02 |
| 163.221.74.254 | nesic-pc2-v74.naist.jp | 2026-09-12 18:59:02 |
Top 20 / total ASN
| Country / Region | Allocated ASNs | ASN IPv4 Number | ASN IPv6 Number(/64) |
|---|---|---|---|
United States
|
32219 | 1497299200 | 975910303763789 |
Brazil
|
9157 | 77606656 | 31373490721038 |
China
|
6582 | 356442368 | 148181518405677 |
India
|
6264 | 35222528 | 24757297422338 |
Russian Federation
|
5752 | 47281664 | 11487351490128 |
Indonesia
|
3995 | 11931904 | 1335890477063 |
Germany
|
3253 | 114097664 | 72219796635914 |
United Kingdom
|
3148 | 71173888 | 33263329673219 |
Australia
|
3042 | 40737792 | 20616764002310 |
Canada
|
2518 | 54993920 | 4262402850822 |
Poland
|
2465 | 19310592 | 14416672134154 |
France
|
2174 | 74868480 | 12994736816131 |
Ukraine
|
2014 | 8336384 | 5178559168512 |
Bangladesh
|
2002 | 2099968 | 1166247198721 |
Netherlands
|
1619 | 51557120 | 19177824780814 |
Hong Kong
|
1363 | 20882176 | 5802796253456 |
Argentina
|
1349 | 18638848 | 19658027630592 |
Italy
|
1317 | 52913664 | 29680064266240 |
Japan
|
1277 | 161360384 | 33661432037381 |
Republic of Korea
|
1177 | 112819456 | 17726344724493 |