bgpmap

BGP map for 37.17.32.0/21

37.17.32.0/21 is announced by AS42772 A1-BY-AS and seen by 370 peers of 23 RIPE RIS collectors, over 271 different AS paths. Its busiest upstreams are AS12406 BN-AS (100%) and AS60280 NTEC (<1%). The most common path, used by 20 peers, is AS6939 AS60280 AS12406 AS42772.

Routes checked 16:10:35 UTC

No change in the origin, the upstreams or the number of peers since 04:21 UTC on 30 Oct, when this site first looked at 37.17.32.0/21.

AS-path graph toward 37.17.32.0/21
BGP map of 37.17.32.0/2111 networks on the paths RIPE RIS collector peers use to reach 37.17.32.0/21. Best path, chosen by the most peers: AS6939 → AS60280 → AS12406 → AS42772.AS24482 → AS60280 · 7 routesAS8218 → AS60280 · 6 routesAS199524 → AS6939 · 6 routesAS9002 → AS60280 · 4 routesAS12779 → AS60280 · 4 routesAS13030 → AS6939 · 4 routesAS6461 → AS6939 · 3 routesAS6939 → AS60280 · 33 routes · best pathAS60280 → AS12406 · 68 routes · best pathAS12406 → AS42772 · 68 routes · best pathAS42772 → 37.17.32.0/21 · 68 routes · best path7AS24482 → AS60280 · 7 routes6AS8218 → AS60280 · 6 routes6AS199524 → AS6939 · 6 routes4AS9002 → AS60280 · 4 routes4AS12779 → AS60280 · 4 routes4AS13030 → AS6939 · 4 routes3AS6461 → AS6939 · 3 routes33AS6939 → AS60280 · 33 routes · best path68AS60280 → AS12406 · 68 routes · best path68AS12406 → AS42772 · 68 routes · best path68AS42772 → 37.17.32.0/21 · 68 routes · best pathAS60280NTEC Republican Unitary Enterprise"National Traffic Exchange Center"AS60280 NTEC Republican Unitary Enterprise "National Traffic Exchange Center" · transit · 68 routes · on the best pathAS12406BN-AS BusinessNetwork LtdAS12406 BN-AS Business Network Ltd · transit · 68 routes · on the best pathAS42772A1-BY-AS Unitaryenterprise A1AS42772 A1-BY-AS Unitary enterprise A1 · origin · 68 routes · on the best pathT2AS6939Hurricane Electric LLCAS6939 Hurricane Electric LLC · Tier 2 · 33 routes · on the best pathAS24482SG.GSAS24482 SG.GS · edge network · 7 routesAS8218NEO-ASN ZayoInfrastructure France SAAS8218 NEO-ASN Zayo Infrastructure France SA · edge network · 6 routesAS199524GCORE G-Core Labs S.A.AS199524 GCORE G-Core Labs S.A. · edge network · 6 routesT2AS9002RETN-AS RETN LimitedAS9002 RETN-AS RETN Limited · Tier 2 · 4 routesAS12779ITGATE IT.Gate S.p.A.AS12779 ITGATE IT.Gate S.p.A. · edge network · 4 routesT2AS13030INIT7 Init7(Switzerland) Ltd.AS13030 INIT7 Init7 (Switzerland) Ltd. · Tier 2 · 4 routesT1AS6461Zayo BandwidthAS6461 Zayo Bandwidth · Tier 1 · 3 routes37.17.32.0/2137.17.32.0/21

origin Tier 1Tier 2transitedge network prefix best path: chosen by 20 of 370 peers (5%) number on a line = peers using that link RIS data up to 16:10 UTC what the colours mean 12 of 271 paths drawn 4 quieter networks left out

View JSON Raw upstream

370collector peers
23RIS collectors
271distinct AS paths
4.7average AS hops, 3 to 7

Upstreams

Networks directly in front of the origin.

NetworkPeersShare
AS12406 BN-AS Business Network Ltd369100%
AS60280 NTEC Republican Unitary Enterprise "National Traffic Exchange Center"1<1%

Transit networks

Networks between the collector peer and the origin.

NetworkPeersShare
AS60280 NTEC Republican Unitary Enterprise "National Traffic Exchange Center"369100%
AS12406 BN-AS Business Network Ltd369100%
AS6939 Hurricane Electric LLC18249%
AS9002 RETN-AS RETN Limited195%
AS12389 ROSTELECOM-AS PJSC Rostelecom113%
AS174 Cogent Communications, LLC92%
AS20485 TRANSTELECOM Joint Stock Company TransTeleCom51%
AS20804 ASN-TELENERGO Exatel S.A.41%
AS9583 Sify Limited2<1%
AS4755 TATA Communications formerly VSNL is Leading ISP2<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
1AS6939AS60280AS12406AS42772205%16
2AS24482AS60280AS12406AS4277272%7
3AS8218AS60280AS12406AS4277262%5
4AS199524AS6939AS60280AS12406AS4277262%6
5AS9002AS60280AS12406AS4277241%4
6AS12779AS60280AS12406AS4277241%4
7AS14840AS60280AS12406AS4277241%2
8AS47147AS60280AS12406AS4277241%4
9AS13030AS6939AS60280AS12406AS4277241%4
10AS34019AS60280AS12406AS427723<1%3
11AS25091AS60280AS12406AS427723<1%3
12AS6461AS6939AS60280AS12406AS427723<1%3
13AS2914AS9002AS60280AS12406AS427723<1%3
14AS3491AS12389AS60280AS12406AS427723<1%3
15AS34927AS6939AS60280AS12406AS427723<1%2
16AS271253AS6939AS60280AS12406AS427723<1%2
17AS49544AS6939AS60280AS12406AS427723<1%3
18AS48362AS6939AS60280AS12406AS427723<1%3
19AS51185AS6939AS60280AS12406AS427723<1%3
20AS25160AS60280AS12406AS427722<1%2
21AS35710AS60280AS12406AS427722<1%2
22AS8529AS60280AS12406AS427722<1%2
23AS15547AS60280AS12406AS427722<1%2
24AS51184AS60280AS12406AS427722<1%2
25AS47692AS60280AS12406AS427722<1%2
26AS49544AS60280AS12406AS427722<1%2
27AS3320AS6939AS60280AS12406AS427722<1%2
28AS62167AS6939AS60280AS12406AS427722<1%2
29AS6424AS6939AS60280AS12406AS427722<1%2
30AS42473AS6939AS60280AS12406AS427722<1%2
31AS48185AS6939AS60280AS12406AS427722<1%2
32AS3214AS6939AS60280AS12406AS427722<1%2
33AS1299AS12389AS60280AS12406AS427722<1%2
34AS50628AS6939AS60280AS12406AS427722<1%2
35AS58057AS6939AS60280AS12406AS427722<1%2
36AS14907AS6939AS60280AS12406AS427722<1%2
37AS31027AS6939AS60280AS12406AS427722<1%1
38AS35280AS6939AS60280AS12406AS427722<1%2
39AS6461AS9002AS60280AS12406AS427722<1%2
40AS6762AS9002AS60280AS12406AS427722<1%2
41AS24482AS20485AS60280AS12406AS427722<1%2
42AS59890AS6939AS60280AS12406AS427722<1%2
43AS20612AS6939AS60280AS12406AS427722<1%1
44AS202032AS6939AS60280AS12406AS427722<1%2
45AS24482AS6939AS60280AS12406AS427722<1%2
46AS2497AS6939AS60280AS12406AS427722<1%2
47AS19151AS6939AS60280AS12406AS427722<1%2
48AS142289AS9583AS4755AS6453AS60280AS12406AS427722<1%1
49AS60280AS12406AS427721<1%1
50AS917AS60068AS60280AS427721<1%1

50 of 271 paths shown. All of them are in the JSON.

More prefixes from AS42772

Routes seen by RIPE RIS in the 24 hours up to 10 Nov 2026, 16:10 UTC, fetched just now.