BGP Announced
| AS | CIDR | Description |
|---|---|---|
| AS31 |
131.215.0.0/16
|
CIT - California Institute of Technology, US |
Real Time BGP Data
| AS / Info | IP / Time | AS Path |
|---|---|---|
| Loading... | ||
Reverse DNS List (Total:52)
| IP | Host | DateTime |
|---|---|---|
| 131.215.253.2 | broad-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.6 | catalina-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.7 | catalina-rsw2-loopback.caltech.edu | 2025-07-18 22:14:01 |
| 131.215.253.9 | broad-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.12 | bra-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.13 | bra-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.22 | baxter-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.23 | baxter-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.24 | bbb-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.25 | bbb-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.28 | keck-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.29 | keck-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.32 | schlinger-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.33 | schlinger-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.34 | kerckhoff-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.35 | kerckhoff-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.44 | jorgensen-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.45 | jorgensen-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.50 | stl-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.51 | stl-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.52 | church-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.55 | church-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.56 | rsc-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.57 | rsc-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.76 | chen-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.77 | chen-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.101 | gates-thomas-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.104 | lindelab-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.105 | lindelab-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.112 | lauritsen-rsw1-loopback.caltech.edu | 2025-07-18 22:14:01 |
| 131.215.253.113 | lauritsen-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.127 | gates-thomas-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.132 | uga-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.133 | uga-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.142 | ist-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.143 | ist-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.148 | booth-rnet1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.149 | booth-rnet2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.150 | css-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.151 | css-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.190 | ksp-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.191 | ksp-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.225 | sfl-b-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.226 | sfl-b-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.240 | atcmr-da2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.242 | atcmr-da1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.243 | che-rsw1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.244 | che-rsw2-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.245 | booth-inet1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.246 | smudd-inet1-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.250 | smudd-core-loopback.caltech.edu | 2025-07-14 23:51:20 |
| 131.215.253.251 | booth-core-loopback.caltech.edu | 2025-07-14 23:51:20 |
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 |