IP Prefix
IPv4
141.20.0.0/16
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Origin AS
AS680
RPKI
1 ROAs
Open IPs
225
last 90 d
Country
DE
Germany
Routing
Origin AS
Holder
DFN Deutsches Forschungsnetz e.V.
Prefix Length
/16
Multi-Origin
No
Last refresh
2026-07-21 19:59:50
RPKI Validity
max-len 16
valid
ripe
RIR Allocation
Registry
RIPE NCC
Country
Status
Assigned
Allocated
1990-06-07
Delegated block
141.20.0.0 + 65,536 addrs
Geographic Announcement
GeoIP attribution from MaxMind GeoLite2 (CC-BY-SA). The starting address of the prefix maps to:
| Country | Continent | Ranges |
|---|---|---|
| DE Germany | EU | 1 |
Sample IPs in this Prefix
| IP | Open ports | Last scan |
|---|---|---|
| 141.20.156.195 | 5 | 2026-07-21 08:12:00.000 |
| 141.20.156.196 | 3 | 2026-06-15 22:59:29.000 |
| 141.20.150.107 | 2 | 2026-07-21 14:59:15.000 |
| 141.20.40.219 | 2 | 2026-07-20 14:45:20.000 |
| 141.20.40.56 | 2 | 2026-07-20 06:08:29.000 |
| 141.20.105.212 | 2 | 2026-07-19 03:14:20.000 |
| 141.20.1.159 | 2 | 2026-07-18 12:57:54.000 |
| 141.20.187.131 | 2 | 2026-07-18 12:03:58.000 |
| 141.20.156.217 | 2 | 2026-07-17 11:55:09.000 |
| 141.20.156.204 | 2 | 2026-06-24 00:02:57.000 |
| 141.20.156.150 | 2 | 2026-06-23 08:17:49.000 |
| 141.20.40.127 | 2 | 2026-06-22 11:01:24.000 |
| 141.20.1.158 | 2 | 2026-06-17 04:21:19.000 |
| 141.20.145.224 | 2 | 2026-06-07 13:01:16.000 |
| 141.20.100.229 | 2 | 2026-05-31 08:28:37.000 |
| 141.20.156.199 | 2 | 2026-05-31 00:42:32.000 |
| 141.20.4.146 | 2 | 2026-05-27 05:31:41.000 |
| 141.20.5.160 | 2 | 2026-05-27 03:12:52.000 |
| 141.20.3.158 | 2 | 2026-05-26 22:45:35.000 |
| 141.20.125.222 | 2 | 2026-05-26 22:01:44.000 |
| 141.20.145.226 | 2 | 2026-05-26 16:42:28.000 |
| 141.20.145.30 | 2 | 2026-05-26 12:36:06.000 |
| 141.20.4.180 | 2 | 2026-05-26 11:36:54.000 |
| 141.20.4.128 | 2 | 2026-05-26 09:29:27.000 |
| 141.20.56.24 | 1 | 2026-07-21 15:31:44.000 |
Cert Subjects in this Prefix
| Subject | Hosts | Last seen |
|---|---|---|
| TRAEFIK DEFAULT CERT | 2 | 2026-06-17 15:09:40.373 |
| zumeldung.physik.hu-berlin.de | 1 | 2026-07-21 14:01:17.407 |
| fis.hu-berlin.de | 1 | 2026-07-20 19:23:12.490 |
| jupyterhub.hu-berlin.de | 1 | 2026-07-20 02:47:08.960 |
| applications.berlinschoolofeconomics.de | 1 | 2026-07-19 03:15:11.065 |
| Kubernetes Ingress Controller Fake Certificate | 1 | 2026-07-18 23:43:12.310 |
| webtest.helmholtzzentrum.de | 1 | 2026-07-18 15:23:10.290 |
| waste.informatik.hu-berlin.de | 1 | 2026-07-18 05:36:06.682 |
| idmtest.cms.hu-berlin.de | 1 | 2026-07-17 07:39:06.119 |
| turtle.biologie.hu-berlin.de | 1 | 2026-06-22 17:06:54.659 |
| barthmat.psychologie.hu-berlin.de | 1 | 2026-06-22 06:41:54.525 |
| ubuntu | 1 | 2026-06-17 14:40:40.198 |
| bibroomz.ub.hu-berlin.de | 1 | 2026-06-16 07:21:40.335 |
| www3.mathnat.hu-berlin.de | 1 | 2026-06-15 03:39:40.064 |
| www.cryotreebase.hu-berlin.de | 1 | 2026-06-13 14:04:40.568 |
| port3.physik.hu-berlin.de | 1 | 2026-06-13 12:02:40.465 |
| mars.wiwi.hu-berlin.de | 1 | 2026-05-31 08:29:24.648 |
| cal.init-c.de | 1 | 2026-05-27 04:54:46.394 |
| module.informatik.hu-berlin.de | 1 | 2026-05-27 02:59:53.707 |
| shib1.cms.hu-berlin.de | 1 | 2026-05-27 01:22:48.729 |
Hosted Domains
Domains that resolve to any address in this prefix — aggregated across the whole subnet. 401 distinct domains seen; top by span shown.
History
Prefix-event history pending
Origin AS changes, ROA add/drop events, multi-origin episodes and withdrawals require snapshot-diffing across BGP crawls. The data accumulates as the archive grows — full ReplacingMergeTree compaction makes point-in-time event extraction unavailable for now.