140.247.21.0/24
BGP Announced
| AS | CIDR | Description |
|---|---|---|
| AS1742 |
140.247.0.0/16
|
HARVARD-UNIV - Harvard University, US |
Real Time BGP Data
| AS / Info | Prefix | AS Path |
|---|---|---|
| Real-time BGP data for 140.247.21.0/24 is loaded by JavaScript after the page renders and is not part of this page's HTML. | ||
Reverse DNS List (Total:82)
| IP | Host | DateTime |
|---|---|---|
| 140.247.21.15 | core-ids.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.16 | sc-mr-1-trs.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.17 | sc-mr-2-trs.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.18 | ac.test.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.20 | sc-mr-ts.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.22 | ns1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.23 | ad.nas.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.24 | iptraf.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.25 | argus.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.27 | wins1.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.28 | wins2.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.29 | sniffer.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.32 | jumpstart1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.33 | webdav.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.36 | dhcp-0038617436-a1-af.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.37 | dhcp-0038617437-a0-ab.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.38 | sc-mr-1-pix-21.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.39 | test-ap.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.45 | noc-dev.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.46 | mass1414-mr-1-bsc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.47 | dhcp-0038617438-a1-45.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.50 | zot.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.51 | xxx.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.52 | xxx.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.53 | xxx.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.55 | xxx.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.56 | fas-noc-mcs.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.61 | us11-21.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.63 | fas-noc-hse.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.67 | netflow.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.71 | dhcp-0038617439-3f-73.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.72 | fas-noc-acs-1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.80 | cnrregion-dev.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.85 | core-dev-1-vl21-alt.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.86 | wcs.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.87 | mass1414-lab-ts-1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.140 | noc-csm-1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.155 | fas-noc-cw2k-al.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.156 | noc-cw-dfm-1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.158 | fas-noc-ctr.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.159 | fas-noc-sid-1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.160 | fas-noc-acs-1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.161 | cnrregion.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.167 | dhcp-0016610187-54-a2.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.168 | radius1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.169 | radius2.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.170 | argus2.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.171 | cs-mars-gc.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.172 | cs-mars1.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.173 | cs-mars2.noc.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.174 | dhcp-0000116232-1d-23.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.181 | voyence.noc.fas.harvard.edu | 2026-09-19 01:56:32 |
| 140.247.21.182 | superagent1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.184 | sce2.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.185 | sce1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.190 | dhcp-0016231481-d4-e5.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.191 | auger.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.195 | noc-nms-laptop.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.197 | net-100192.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.198 | curly.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.199 | dhcp-0000096610-b5-5c.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.200 | dhcp-0038617440-ee-9d.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.202 | dhcp-0000067366-22-4e.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.204 | nocsys1.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.205 | nocsys2.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.208 | labchopper.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.209 | dhcp-0038617441-c3-b7.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.212 | dhcp-0000076921-00-66.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.215 | dhcp-0017030936-24-2f.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.218 | natkit.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.220 | canary-cnr-hotzone.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.222 | us56.unix.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.223 | monk.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.224 | extralappy.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.225 | net-105088.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.233 | jazznew.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.235 | nocsys-sql.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.242 | mcgrath-4.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.243 | dhcp-0000083924-76-64.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.247 | dhcp-0000022709-0b-ee.client.student.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.252 | ns1.client.fas.harvard.edu | 2026-09-17 22:33:51 |
| 140.247.21.254 | mayes.fas.harvard.edu | 2026-09-17 22:33:51 |
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 |