BGP Announced

AS CIDR Description
AS2501 157.82.0.0/16 UTnet - The University of Tokyo, JP

Real Time BGP Data

AS / Info IP / Time AS Path
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Reverse DNS List (Total:100)

IP Host DateTime
157.82.77.2 rt4-mst-e.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.3 rt4-slv-e.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.4 sw4-mst-e.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.5 sw4-slv-e.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.6 sw4-2f-e1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.7 sw4-2F-e2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.8 sw4-3F-e1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.9 sw4-3f-e2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.10 sw4-4F-e1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.11 sw4-4F-e2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.12 sw4-5f-e1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.13 sw4-5F-e2.rcast.u-tokyo.ac.jp 2025-05-29 07:23:22
157.82.77.14 sw4-mst-w.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.15 sw4-slv-w.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.16 sw4-1F-w1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.17 sw4-1F-w2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.18 sw4-2F-w1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.19 sw4-2F-w2.rcast.u-tokyo.ac.jp 2025-05-29 07:23:22
157.82.77.20 sw4-3f-w1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.21 sw4-3F-w2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.22 sw4-4F-w1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.23 sw4-4F-w2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.24 sw4-5F-w1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.25 sw4-5F-w2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.26 sw4-6F-w1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.27 sw4-6F-w2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.33 www1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.34 ns.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.35 rcast03.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.36 gw2.rcast.u-tokyo.ac.jp 2025-05-29 07:23:22
157.82.77.37 mail.rcast.u-tokyo.ac.jp 2025-05-29 07:23:22
157.82.77.38 fcs.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.39 post.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.40 gw3.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.41 work1.net.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.42 work2.net.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.43 work3.net.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.44 work4.net.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.45 45.77.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.46 sw45-main.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.47 sw56-mst.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.48 sw56-BF.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.49 sw56-1F.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.50 sw56-2f.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.51 sw56-3F.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.52 sw56-4f.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.53 sw56-5F.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.54 sw-ccr-main.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.55 sw-ccr-sub.rcast.u-tokyo.ac.jp 2025-05-29 07:23:22
157.82.77.56 rcast-db2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.57 rcast-db.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.58 rcc-gw.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.59 rcc-gw1.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.60 rcc-gw2.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.61 hpds-gw.hpds.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.62 hal-gw.hal.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.63 bc1.bldg4.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.65 gw04-mst-e.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.66 gw03-mst-n.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.81 gw04-slv-e.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.82 gw03-slv-n.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.97 gw04-mst-w.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.113 gw04-slv-w.rcast.u-tokyo.ac.jp 2025-05-29 07:23:22
157.82.77.127 bc1.trunk.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.193 gw.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.194 gw1.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.195 gw2.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.196 196.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.197 197.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.198 198.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.199 bc1.office.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.200 bc0.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.201 gw.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.202 gw1.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.203 gw2.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.204 204.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.205 205.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.206 206.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.207 bc1.pc.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.208 bc0.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.209 gw.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.210 gw1.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.211 gw2.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.212 212.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.213 213.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.214 214.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.215 215.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.216 216.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.217 217.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.218 218.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.219 219.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.220 220.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.221 221.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.222 222.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.223 bc1.guest.lib.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.224 bc0.sal.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.225 gw.sal.rcast.u-tokyo.ac.jp gw1.sal.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.227 gw2.sal.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.236 www.sal.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16
157.82.77.255 bc1.sal.rcast.u-tokyo.ac.jp 2025-06-03 08:19:16

Top 20 countries in total ASN

Country Allocated ASNs ASN IPv4 Number ASN IPv6 Number(/64)
United States 31381 1463309133 1153867275719288914
Brazil 9037 86226398 2305871897990729730
China 6564 346799264 129893613128288
India 5969 35348480 24480594907136
Russian Federation 5748 46622776 10705793691720
Indonesia 3603 18073088 1225629728768
Germany 3109 112752904 69548054544384
United Kingdom 3108 71550336 31532536299520
Australia 3015 40588592 20514282543104
Poland 2465 19272192 15298114229248
Canada 2443 54437736 4438988948736
France 2201 75328768 12154271827456
Ukraine 2009 8261632 5013717516288
Bangladesh 1870 1933568 908494569472
Netherlands 1595 51310544 26556465939968
Argentina 1300 19708416 18815344377856
Italy 1298 52409856 28591018606592
Hong Kong 1280 18154148 8554605118208
Japan 1269 159027048 33573211799552
Spain 1233 34628352 7522246791168