bgpmap

BGP map for 2001:1878:401::/48

2001:1878:401::/48 is announced by AS4 University of Southern California and seen by 118 peers of 21 RIPE RIS collectors, over 89 different AS paths. Its busiest upstreams are AS567 Los Nettos (99%) and AS226 Los Nettos (<1%). The most common path, used by 7 peers, is AS8218 AS6461 AS2152 AS567 AS4.

Routes checked 03:08:56 UTC

No change in the origin, the upstreams or the number of peers since 03:08 UTC, when this site first looked at 2001:1878:401::/48.

AS-path graph toward 2001:1878:401::/48
BGP map of 2001:1878:401::/4815 networks on the paths RIPE RIS collector peers use to reach 2001:1878:401::/48. Best path, chosen by the most peers: AS8218 → AS6461 → AS2152 → AS567 → AS4.AS3491 → AS11164 · 6 routesAS11164 → AS2152 · 15 routesAS15547 → AS8220 · 3 routesAS8220 → AS2152 · 3 routesAS199524 → AS3491 · 3 routesAS34019 → AS3303 · 3 routesAS3303 → AS11164 · 3 routesAS19151 → AS2152 · 2 routesAS49544 → AS2152 · 2 routesAS2497 → AS11164 · 2 routesAS8218 → AS6461 · 7 routes · best pathAS6461 → AS2152 · 14 routes · best pathAS2152 → AS567 · 36 routes · best pathAS567 → AS4 · 36 routes · best pathAS4 → 2001:1878:401::/48 · 36 routes · best path6AS3491 → AS11164 · 6 routes15AS11164 → AS2152 · 15 routes3AS15547 → AS8220 · 3 routes3AS8220 → AS2152 · 3 routes3AS199524 → AS3491 · 3 routes3AS34019 → AS3303 · 3 routes3AS3303 → AS11164 · 3 routes2AS19151 → AS2152 · 2 routes2AS49544 → AS2152 · 2 routes2AS2497 → AS11164 · 2 routes7AS8218 → AS6461 · 7 routes · best path14AS6461 → AS2152 · 14 routes · best path36AS2152 → AS567 · 36 routes · best path36AS567 → AS4 · 36 routes · best path36AS4 → 2001:1878:401::/48 · 36 routes · best pathAS2152CENICAS2152 CENIC · transit · 36 routes · on the best pathAS567Los NettosAS567 Los Nettos · transit · 36 routes · on the best pathAS4University ofSouthern CaliforniaAS4 University of Southern California · origin · 36 routes · on the best pathAS11164Internet2AS11164 Internet2 · transit · 15 routesT1AS6461Zayo BandwidthAS6461 Zayo Bandwidth · Tier 1 · 14 routes · on the best pathAS8218NEO-ASN ZayoInfrastructure France SAAS8218 NEO-ASN Zayo Infrastructure France SA · edge network · 7 routes · on the best pathT1AS3491PCCW Global (HK) Ltd.AS3491 PCCW Global (HK) Ltd. · Tier 1 · 6 routesAS15547NETPLUS netplus.ch SAAS15547 NETPLUS netplus.ch SA · edge network · 3 routesT2AS8220COLT COLT TechnologyServices Group LimitedAS8220 COLT COLT Technology Services Group Limited · Tier 2 · 3 routesAS199524GCORE G-Core Labs S.A.AS199524 GCORE G-Core Labs S.A. · edge network · 3 routesAS34019HIVANE HivaneAssociationAS34019 HIVANE Hivane Association · edge network · 3 routesT2AS3303SWISSCOM Swisscom(Schweiz) AGAS3303 SWISSCOM Swisscom (Schweiz) AG · Tier 2 · 3 routesAS19151BroadbandONE, LLCAS19151 BroadbandONE, LLC · edge network · 2 routesAS49544i3Dnet i3D.net B.VAS49544 i3Dnet i3D.net B.V · edge network · 2 routesT2AS2497Internet InitiativeJapan Inc.AS2497 Internet Initiative Japan Inc. · Tier 2 · 2 routes2001:1878:401::/482001:1878:401::/48

origin Tier 1Tier 2transitedge network prefix best path: chosen by 7 of 118 peers (6%) number on a line = peers using that link RIS data up to 03:08 UTC what the colours mean 12 of 89 paths drawn 2 quieter networks left out

Download PNG View JSON Raw upstream

118collector peers
21RIS collectors
89distinct AS paths
5.9average AS hops, 4 to 9

Upstreams

Networks directly in front of the origin.

NetworkPeersShare
AS567 Los Nettos11799%
AS226 Los Nettos1<1%

Transit networks

Networks between the collector peer and the origin.

NetworkPeersShare
AS2152 CENIC11799%
AS567 Los Nettos11799%
AS11164 Internet26152%
AS6461 Zayo Bandwidth3328%
AS3491 PCCW Global (HK) Ltd.2420%
AS3303 SWISSCOM Swisscom (Schweiz) AG1513%
AS11537 Internet265%
AS2153 CENIC65%
AS8758 IWAY Iway AG54%
AS8220 COLT COLT Technology Services Group Limited43%

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
1AS8218AS6461AS2152AS567AS476%6
2AS6461AS2152AS567AS454%5
3AS3491AS11164AS2152AS567AS433%3
4AS15547AS8220AS2152AS567AS433%3
5AS199524AS3491AS11164AS2152AS567AS433%3
6AS34019AS3303AS11164AS2152AS567AS433%3
7AS11164AS2152AS567AS422%2
8AS19151AS2152AS567AS422%2
9AS49544AS2152AS567AS422%2
10AS2497AS11164AS2152AS567AS422%2
11AS852AS11164AS2152AS567AS422%2
12AS37721AS6461AS2152AS567AS422%1
13AS35280AS11164AS2152AS567AS422%2
14AS8529AS137409AS6461AS2152AS567AS422%2
15AS142289AS9583AS7473AS6461AS2152AS567AS422%1
16AS917AS60068AS3491AS11164AS2152AS567AS422%2
17AS20612AS8758AS3303AS11164AS2152AS567AS422%1
18AS1828AS2152AS567AS41<1%1
19AS513AS293AS226AS41<1%1
20AS52320AS6461AS2152AS567AS41<1%1
21AS199524AS11164AS2152AS567AS41<1%1
22AS1280AS11164AS2152AS567AS41<1%1
23AS14907AS11164AS2152AS567AS41<1%1
24AS6057AS6461AS2152AS567AS41<1%1
25AS835AS6461AS2152AS567AS41<1%1
26AS13781AS6461AS2152AS567AS41<1%1
27AS36236AS11164AS2152AS567AS41<1%1
28AS28910AS6461AS2152AS567AS41<1%1
29AS6424AS6461AS2152AS567AS41<1%1
30AS31122AS6461AS2152AS567AS41<1%1
31AS48070AS6461AS2152AS567AS41<1%1
32AS15605AS6461AS2152AS567AS41<1%1
33AS4777AS2497AS11164AS2152AS567AS41<1%1
34AS25152AS2497AS11164AS2152AS567AS41<1%1
35AS59105AS2518AS2516AS2152AS567AS41<1%1
36AS17639AS3491AS11164AS2152AS567AS41<1%1
37AS38001AS3491AS11164AS2152AS567AS41<1%1
38AS264845AS6057AS6461AS2152AS567AS41<1%1
39AS270014AS6057AS6461AS2152AS567AS41<1%1
40AS44097AS30972AS6461AS2152AS567AS41<1%1
41AS45489AS3491AS11164AS2152AS567AS41<1%1
42AS38008AS3491AS11164AS2152AS567AS41<1%1
43AS924AS400587AS6461AS2152AS567AS41<1%1
44AS8888AS137409AS6461AS2152AS567AS41<1%1
45AS34288AS8218AS6461AS2152AS567AS41<1%1
46AS1103AS11537AS2153AS2152AS567AS41<1%1
47AS3170AS3491AS11164AS2152AS567AS41<1%1
48AS207841AS137409AS6461AS2152AS567AS41<1%1
49AS36924AS35280AS11164AS2152AS567AS41<1%1
50AS12637AS3303AS11164AS2152AS567AS41<1%1

50 of 89 paths shown. All of them are in the JSON.

More prefixes from AS4

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 03:08 UTC, fetched just now.