DNSRegistration lookup
HOW THE INTERNET SEES A NETWORK

BGP looking glass.

Explore routing observations, origin networks and RPKI validation.

203.72.0.0

RIPE RIS
Retrieved · 2026-10-15T23:21:58+00:00Observed · 2026-10-15T23:21:38ZView JSON
Registration / WHOIS →
Prefix
203.72.0.0/21
Origin ASN
AS1659, AS17712
Collectors shown
7
Paths shown
12

RPKI origin validation

203.72.0.0/21 · AS1659Valid
Covering ROAs
  • 203.72.0.0/16 · AS1659 · max length /24
  • 203.72.0.0/21 · AS17712 · max length /21
203.72.0.0/21 · AS17712Valid
Covering ROAs
  • 203.72.0.0/21 · AS17712 · max length /21
  • 203.72.0.0/16 · AS1659 · max length /24

Valid authorizes this prefix and origin ASN. It does not validate the AS path. No ROA means no covering authorization was found.

Collector / peerAS pathLast confirmed (UTC)Details
RRC12
80.81.192.222		680 20965 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:54Z
Show
Prefix
203.72.0.0/21
Next hop
80.81.192.222
Last changed
2026-10-12T13:50:25Z
Communities
680:77 20965:65530 20965:24490 20965:3000 20965:5000 20965:6000 23855:2222 23855:7660 24489:23855 24489:65200
Large communities
None supplied
Extended communities
None supplied
RRC03
80.249.208.34		1103 20965 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:56Z
Show
Prefix
203.72.0.0/21
Next hop
80.249.208.34
Last changed
2026-10-03T20:10:56Z
Communities
20965:3000 20965:5000 20965:6000 20965:24490 20965:65530 23855:2222 23855:7660 24489:23855 24489:65200
Large communities
None supplied
Extended communities
None supplied
RRC25
154.18.4.110		134823 3462 177122026-10-15T23:14:01Z
Show
Prefix
203.72.0.0/21
Next hop
154.18.4.110
Last changed
2026-10-14T23:22:54Z
Communities
38042:15002 65535:20001
Large communities
None supplied
Extended communities
None supplied
RRC04
192.65.185.3		513 20965 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:56Z
Show
Prefix
203.72.0.0/21
Next hop
192.65.185.3
Last changed
2026-10-03T20:11:10Z
Communities
20965:3000 20965:5000 20965:6000 20965:24490 20965:65530 23855:2222 23855:7660 24489:23855 24489:65200
Large communities
None supplied
Extended communities
None supplied
RRC04
192.65.185.130		559 20965 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:53Z
Show
Prefix
203.72.0.0/21
Next hop
192.65.185.130
Last changed
2026-10-14T00:15:48Z
Communities
20965:3000 20965:5000 20965:6000 20965:24490 20965:65530 23855:2222 23855:7660 24489:23855 24489:65200
Large communities
None supplied
Extended communities
None supplied
RRC00
192.248.121.251		38229 23855 7660 9264 7539 16592026-10-15T23:21:49Z
Show
Prefix
203.72.0.0/21
Next hop
192.248.121.251
Last changed
2026-09-27T16:58:41Z
Communities
None supplied
Large communities
None supplied
Extended communities
None supplied
RRC00
193.0.0.56		3333 1103 20965 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:56Z
Show
Prefix
203.72.0.0/21
Next hop
193.0.0.56
Last changed
2026-10-03T20:10:55Z
Communities
20965:3000 20965:5000 20965:6000 20965:24490 20965:65530 23855:2222 23855:7660 24489:23855 24489:65200
Large communities
None supplied
Extended communities
None supplied
RRC00
203.119.104.1		4608 7575 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:44Z
Show
Prefix
203.72.0.0/21
Next hop
203.119.104.1
Last changed
2026-10-15T08:02:08Z
Communities
None supplied
Large communities
None supplied
Extended communities
None supplied
RRC05
193.203.0.63		6720 1853 20965 24490 24490 23855 7660 9264 7539 16592026-10-15T23:21:49Z
Show
Prefix
203.72.0.0/21
Next hop
193.203.0.63
Last changed
2026-10-03T20:11:39Z
Communities
1120:1
Large communities
None supplied
Extended communities
None supplied
RRC06
202.249.2.20		4777 2500 7660 9264 7539 16592026-10-15T23:21:54Z
Show
Prefix
203.72.0.0/21
Next hop
202.249.2.83
Last changed
2026-09-24T12:31:01Z
Communities
None supplied
Large communities
None supplied
Extended communities
None supplied
RRC06
202.249.2.83		2500 7660 9264 7539 16592026-10-15T23:21:56Z
Show
Prefix
203.72.0.0/21
Next hop
202.249.2.83
Last changed
2026-09-24T12:30:50Z
Communities
7660:2000 7660:9001 65000:22388
Large communities
None supplied
Extended communities
None supplied
RRC06
210.171.225.165		59105 59103 2907 7660 9264 7539 16592026-10-15T23:21:56Z
Show
Prefix
203.72.0.0/21
Next hop
210.171.225.165
Last changed
2026-09-22T02:36:01Z
Communities
None supplied
Large communities
None supplied
Extended communities
None supplied

RIPEstat / RIS observations represent participating peers, not every router on the Internet. Collector processing and snapshots introduce a delay.