bgpmap

BGP map for 240d:4000::/21

240d:4000::/21 is announced by AS133111 CERNET New Technology Co., Ltd and seen by 358 peers of 23 RIPE RIS collectors, over 240 different AS paths. All of those routes reach it through one upstream, AS23910 China Next Generation Internet CERNET2. The most common path, used by 21 peers, is AS6939 AS23911 AS23910 AS133111.

Routes checked 12:38:55 UTC

No change in the origin, the upstreams or the number of peers since 20:51 UTC on 25 Oct, when this site first looked at 240d:4000::/21.

AS-path graph toward 240d:4000::/21
BGP map of 240d:4000::/219 networks on the paths RIPE RIS collector peers use to reach 240d:4000::/21. Best path, chosen by the most peers: AS6939 → AS23911 → AS23910 → AS133111.AS24482 → AS6939 · 10 routesAS8218 → AS6939 · 7 routesAS6461 → AS6939 · 5 routesAS9002 → AS6939 · 5 routesAS14907 → AS6939 · 4 routesAS6939 → AS23911 · 76 routes · best pathAS23911 → AS23910 · 76 routes · best pathAS23910 → AS133111 · 76 routes · best pathAS133111 → 240d:4000::/21 · 76 routes · best path10AS24482 → AS6939 · 10 routes7AS8218 → AS6939 · 7 routes5AS6461 → AS6939 · 5 routes5AS9002 → AS6939 · 5 routes4AS14907 → AS6939 · 4 routes76AS6939 → AS23911 · 76 routes · best path76AS23911 → AS23910 · 76 routes · best path76AS23910 → AS133111 · 76 routes · best path76AS133111 → 240d:4000::/21 · 76 routes · best pathT2AS6939Hurricane Electric LLCAS6939 Hurricane Electric LLC · Tier 2 · 76 routes · on the best pathAS23911China Next GenerationInternet Beijing IXAS23911 China Next Generation Internet Beijing IX · transit · 76 routes · on the best pathAS23910China Next GenerationInternet CERNET2AS23910 China Next Generation Internet CERNET2 · transit · 76 routes · on the best pathAS133111CERNET NewTechnology Co., LtdAS133111 CERNET New Technology Co., Ltd · origin · 76 routes · on the best pathAS24482SG.GSAS24482 SG.GS · edge network · 10 routesAS8218NEO-ASN ZayoInfrastructure France SAAS8218 NEO-ASN Zayo Infrastructure France SA · edge network · 7 routesT1AS6461Zayo BandwidthAS6461 Zayo Bandwidth · Tier 1 · 5 routesT2AS9002RETN-AS RETN LimitedAS9002 RETN-AS RETN Limited · Tier 2 · 5 routesAS14907Wikimedia Foundation Inc.AS14907 Wikimedia Foundation Inc. · edge network · 4 routes240d:4000::/21240d:4000::/21

origin Tier 1Tier 2transitedge network prefix best path: chosen by 21 of 358 peers (6%) number on a line = peers using that link RIS data up to 09:59 UTC what the colours mean 12 of 240 paths drawn 6 quieter networks left out

View JSON Raw upstream

358collector peers
23RIS collectors
240distinct AS paths
5.1average AS hops, 4 to 7

Upstreams

Networks directly in front of the origin.

NetworkPeersShare
AS23910 China Next Generation Internet CERNET2358100%

Transit networks

Networks between the collector peer and the origin.

NetworkPeersShare
AS23911 China Next Generation Internet Beijing IX358100%
AS23910 China Next Generation Internet CERNET2358100%
AS6939 Hurricane Electric LLC31488%
AS3491 PCCW Global (HK) Ltd.62%
AS174 Cogent Communications, LLC51%
AS4538 China Education and Research Network Center51%
AS1299 TWELVE99 Arelion Sweden AB41%
AS3320 DTAG Deutsche Telekom AG2<1%
AS9583 Sify Limited2<1%
AS60707 KAPTEYANAS Kapteyan Bilisim Teknolojileri Sanayi ve Ticaret A.S2<1%

AS paths

Every distinct path the collector peers use, most common first. An ASN repeated to lengthen a path (a prepend) is shown once.

#Path, collector peer to originPeersShareCollectors
1AS6939AS23911AS23910AS133111216%17
2AS24482AS6939AS23911AS23910AS133111103%10
3AS8218AS6939AS23911AS23910AS13311172%6
4AS6461AS6939AS23911AS23910AS13311151%5
5AS9002AS6939AS23911AS23910AS13311151%5
6AS14907AS6939AS23911AS23910AS13311141%4
7AS58057AS6939AS23911AS23910AS13311141%3
8AS34927AS6939AS23911AS23910AS13311141%3
9AS12779AS6939AS23911AS23910AS13311141%4
10AS13030AS6939AS23911AS23910AS13311141%4
11AS199524AS6939AS23911AS23910AS13311141%4
12AS49544AS6939AS23911AS23910AS13311141%4
13AS14840AS6939AS23911AS23910AS13311141%2
14AS3491AS23911AS23910AS1331113<1%3
15AS48185AS6939AS23911AS23910AS1331113<1%3
16AS2914AS6939AS23911AS23910AS1331113<1%3
17AS3214AS6939AS23911AS23910AS1331113<1%3
18AS34019AS6939AS23911AS23910AS1331113<1%3
19AS15547AS6939AS23911AS23910AS1331113<1%3
20AS25091AS6939AS23911AS23910AS1331113<1%3
21AS48362AS6939AS23911AS23910AS1331113<1%3
22AS35280AS6939AS23911AS23910AS1331113<1%3
23AS51185AS6939AS23911AS23910AS1331113<1%3
24AS199524AS3491AS23911AS23910AS1331113<1%3
25AS2497AS23911AS23910AS1331112<1%2
26AS1403AS6939AS23911AS23910AS1331112<1%1
27AS852AS6939AS23911AS23910AS1331112<1%2
28AS50628AS6939AS23911AS23910AS1331112<1%2
29AS1299AS6939AS23911AS23910AS1331112<1%2
30AS6424AS6939AS23911AS23910AS1331112<1%2
31AS6830AS6939AS23911AS23910AS1331112<1%2
32AS42473AS6939AS23911AS23910AS1331112<1%2
33AS3320AS6939AS23911AS23910AS1331112<1%2
34AS62167AS6939AS23911AS23910AS1331112<1%2
35AS8529AS6939AS23911AS23910AS1331112<1%2
36AS12859AS6939AS23911AS23910AS1331112<1%1
37AS47692AS6939AS23911AS23910AS1331112<1%2
38AS51184AS6939AS23911AS23910AS1331112<1%2
39AS59890AS6939AS23911AS23910AS1331112<1%2
40AS6667AS6939AS23911AS23910AS1331112<1%2
41AS202032AS6939AS23911AS23910AS1331112<1%2
42AS19151AS6939AS23911AS23910AS1331112<1%2
43AS6762AS6939AS23911AS23910AS1331112<1%2
44AS35710AS6939AS23911AS23910AS1331112<1%2
45AS28917AS6939AS23911AS23910AS1331112<1%1
46AS20612AS6939AS23911AS23910AS1331112<1%1
47AS31027AS6939AS23911AS23910AS1331112<1%1
48AS25160AS174AS4538AS23911AS23910AS1331112<1%2
49AS3257AS174AS4538AS23911AS23910AS1331112<1%2
50AS47147AS1299AS6939AS23911AS23910AS1331112<1%2

50 of 240 paths shown. All of them are in the JSON.

More prefixes from AS133111

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 09:59 UTC, fetched just now.