bgpmap

BGP map for 157.100.104.0/21

157.100.104.0/21 is announced by AS27947 Telconet S.A and seen by 322 peers of 23 RIPE RIS collectors, over 248 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (73%), AS6762 SEABONE-NET (21%) and AS7195 EDGEUNO S.A.S (6%). The most common path, used by 7 peers, is AS8218 AS6461 AS1299 AS27947.

Routes checked 19:55:54 UTC

No change in the origin, the upstreams or the number of peers since 17:48 UTC on 29 Oct, when this site first looked at 157.100.104.0/21.

AS-path graph toward 157.100.104.0/21
BGP map of 157.100.104.0/2110 networks on the paths RIPE RIS collector peers use to reach 157.100.104.0/21. Best path, chosen by the most peers: AS8218 → AS6461 → AS1299 → AS27947.AS24482 → AS2914 · 7 routesAS2914 → AS6762 · 7 routesAS6762 → AS27947 · 15 routesAS199524 → AS1299 · 5 routesAS13030 → AS1299 · 4 routesAS9002 → AS6762 · 4 routesAS8218 → AS6461 · 7 routes · best pathAS6461 → AS1299 · 12 routes · best pathAS1299 → AS27947 · 37 routes · best pathAS27947 → 157.100.104.0/21 · 52 routes · best path7AS24482 → AS2914 · 7 routes7AS2914 → AS6762 · 7 routes15AS6762 → AS27947 · 15 routes5AS199524 → AS1299 · 5 routes4AS13030 → AS1299 · 4 routes4AS9002 → AS6762 · 4 routes7AS8218 → AS6461 · 7 routes · best path12AS6461 → AS1299 · 12 routes · best path37AS1299 → AS27947 · 37 routes · best path52AS27947 → 157.100.104.0/21 · 52 routes · best pathAS27947Telconet S.AAS27947 Telconet S.A · origin · 52 routes · on the best pathT1AS1299TWELVE99 ArelionSweden ABAS1299 TWELVE99 Arelion Sweden AB · Tier 1 · 37 routes · on the best pathT1AS6762SEABONE-NET TELECOMITALIA SPARKLE S.p.A.AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. · Tier 1 · 15 routesT1AS6461Zayo BandwidthAS6461 Zayo Bandwidth · Tier 1 · 12 routes · on the best pathAS8218NEO-ASN ZayoInfrastructure France SAAS8218 NEO-ASN Zayo Infrastructure France SA · edge network · 7 routes · on the best pathAS24482SG.GSAS24482 SG.GS · edge network · 7 routesT1AS2914NTT America, Inc.AS2914 NTT America, Inc. · Tier 1 · 7 routesAS199524GCORE G-Core Labs S.A.AS199524 GCORE G-Core Labs S.A. · edge network · 5 routesT2AS13030INIT7 Init7(Switzerland) Ltd.AS13030 INIT7 Init7 (Switzerland) Ltd. · Tier 2 · 4 routesT2AS9002RETN-AS RETN LimitedAS9002 RETN-AS RETN Limited · Tier 2 · 4 routes157.100.104.0/21157.100.104.0/21

origin Tier 1Tier 2edge network prefix best path: chosen by 7 of 322 peers (2%) number on a line = peers using that link RIS data up to 19:55 UTC what the colours mean 12 of 248 paths drawn 6 quieter networks left out

View JSON Raw upstream

322collector peers
23RIS collectors
248distinct AS paths
3.6average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

NetworkPeersShare
AS1299 TWELVE99 Arelion Sweden AB23473%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.6721%
AS7195 EDGEUNO S.A.S206%
AS199524 GCORE G-Core Labs S.A.1<1%

Transit networks

Networks between the collector peer and the origin.

NetworkPeersShare
AS1299 TWELVE99 Arelion Sweden AB23272%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.6520%
AS2914 NTT America, Inc.206%
AS7195 EDGEUNO S.A.S206%
AS174 Cogent Communications, LLC103%
AS3257 GTT-BACKBONE GTT Communications Inc.93%
AS6461 Zayo Bandwidth72%
AS3356 Level 3 Parent, LLC72%
AS8220 COLT COLT Technology Services Group Limited62%
AS9002 RETN-AS RETN Limited62%

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
1AS8218AS6461AS1299AS2794772%6
2AS24482AS2914AS6762AS2794772%7
3AS6461AS1299AS2794752%5
4AS199524AS1299AS2794752%5
5AS13030AS1299AS2794741%4
6AS9002AS6762AS2794741%4
7AS14840AS6762AS2794741%2
8AS47147AS1299AS2794741%4
9AS3491AS1299AS279473<1%3
10AS48185AS1299AS279473<1%3
11AS34927AS1299AS279473<1%3
12AS14907AS1299AS279473<1%3
13AS51185AS6762AS279473<1%3
14AS49544AS1299AS279473<1%3
15AS25091AS1299AS279473<1%3
16AS48362AS1299AS279473<1%3
17AS12779AS174AS7195AS279473<1%3
18AS1299AS279472<1%2
19AS6762AS279472<1%2
20AS3257AS1299AS279472<1%2
21AS6830AS1299AS279472<1%2
22AS3320AS1299AS279472<1%2
23AS2914AS6762AS279472<1%2
24AS25160AS1299AS279472<1%2
25AS42473AS1299AS279472<1%2
26AS8529AS1299AS279472<1%2
27AS35280AS1299AS279472<1%2
28AS199524AS6762AS279472<1%2
29AS2497AS1299AS279472<1%2
30AS62167AS24785AS1299AS279472<1%2
31AS58057AS1836AS1299AS279472<1%2
32AS58057AS34549AS1299AS279472<1%2
33AS35710AS3320AS1299AS279472<1%2
34AS15547AS8220AS1299AS279472<1%2
35AS51184AS1764AS1299AS279472<1%2
36AS34019AS6696AS1299AS279472<1%2
37AS59890AS60068AS1299AS279472<1%2
38AS24482AS2914AS1299AS279472<1%2
39AS19151AS2914AS1299AS279472<1%2
40AS142289AS9583AS6453AS1299AS279472<1%1
41AS20612AS8758AS8220AS1299AS279472<1%1
42AS199524AS279471<1%1
43AS31742AS1299AS279471<1%1
44AS35266AS1299AS279471<1%1
45AS1828AS1299AS279471<1%1
46AS6424AS1299AS279471<1%1
47AS39122AS1299AS279471<1%1
48AS12969AS1299AS279471<1%1
49AS14630AS1299AS279471<1%1
50AS7018AS1299AS279471<1%1

50 of 248 paths shown. All of them are in the JSON.

More prefixes from AS27947

Routes seen by RIPE RIS in the 24 hours up to 31 Oct 2026, 19:55 UTC, fetched just now.