bgpmap

BGP map for 210.51.56.0/23

210.51.56.0/23 is announced by AS138421 China Unicom and seen by 332 peers of 23 RIPE RIS collectors, over 259 different AS paths. All of those routes reach it through one upstream, AS4837 CHINA UNICOM China169 Backbone. The most common path, used by 10 peers, is AS24482 AS2914 AS3356 AS4837 AS138421.

Routes checked 21:19:18 UTC

No change in the origin, the upstreams or the number of peers since 21:19 UTC, when this site first looked at 210.51.56.0/23.

AS-path graph toward 210.51.56.0/23
BGP map of 210.51.56.0/2313 networks on the paths RIPE RIS collector peers use to reach 210.51.56.0/23. Best path, chosen by the most peers: AS24482 → AS2914 → AS3356 → AS4837 → AS138421.AS8218 → AS702 · 7 routesAS702 → AS4837 · 10 routesAS6461 → AS4837 · 5 routesAS199524 → AS1299 · 5 routesAS1299 → AS4837 · 13 routesAS12779 → AS4837 · 4 routesAS13030 → AS1299 · 4 routesAS24482 → AS2914 · 10 routes · best pathAS2914 → AS3356 · 13 routes · best pathAS3356 → AS4837 · 13 routes · best pathAS4837 → AS138421 · 55 routes · best pathAS138421 → 210.51.56.0/23 · 55 routes · best path7AS8218 → AS702 · 7 routes10AS702 → AS4837 · 10 routes5AS6461 → AS4837 · 5 routes5AS199524 → AS1299 · 5 routes13AS1299 → AS4837 · 13 routes4AS12779 → AS4837 · 4 routes4AS13030 → AS1299 · 4 routes10AS24482 → AS2914 · 10 routes · best path13AS2914 → AS3356 · 13 routes · best path13AS3356 → AS4837 · 13 routes · best path55AS4837 → AS138421 · 55 routes · best path55AS138421 → 210.51.56.0/23 · 55 routes · best pathT2AS4837CHINA UNICOMChina169 BackboneAS4837 CHINA UNICOM China169 Backbone · Tier 2 · 55 routes · on the best pathAS138421China UnicomAS138421 China Unicom · origin · 55 routes · on the best pathT1AS2914NTT America, Inc.AS2914 NTT America, Inc. · Tier 1 · 13 routes · on the best pathT1AS3356Level 3 Parent, LLCAS3356 Level 3 Parent, LLC · Tier 1 · 13 routes · on the best pathT1AS1299TWELVE99 ArelionSweden ABAS1299 TWELVE99 Arelion Sweden AB · Tier 1 · 13 routesAS24482SG.GSAS24482 SG.GS · edge network · 10 routes · on the best pathAS702Verizon BusinessAS702 Verizon Business · transit · 10 routesAS8218NEO-ASN ZayoInfrastructure France SAAS8218 NEO-ASN Zayo Infrastructure France SA · edge network · 7 routesT1AS6461Zayo BandwidthAS6461 Zayo Bandwidth · Tier 1 · 5 routesAS199524GCORE G-Core Labs S.A.AS199524 GCORE G-Core Labs S.A. · edge network · 5 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 routesAS14840BR.Digital TelecomAS14840 BR.Digital Telecom · edge network · 4 routes210.51.56.0/23210.51.56.0/23

origin Tier 1Tier 2transitedge network prefix best path: chosen by 10 of 332 peers (3%) number on a line = peers using that link RIS data up to 21:18 UTC what the colours mean 12 of 259 paths drawn 7 quieter networks left out

Download PNG View JSON Raw upstream

332collector peers
23RIS collectors
259distinct AS paths
4.2average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

NetworkPeersShare
AS4837 CHINA UNICOM China169 Backbone332100%

Transit networks

Networks between the collector peer and the origin.

NetworkPeersShare
AS4837 CHINA UNICOM China169 Backbone331100%
AS1299 TWELVE99 Arelion Sweden AB6520%
AS3356 Level 3 Parent, LLC4814%
AS174 Cogent Communications, LLC3711%
AS702 Verizon Business299%
AS2914 NTT America, Inc.237%
AS4134 No.31,Jin-rong Street113%
AS3257 GTT-BACKBONE GTT Communications Inc.103%
AS6939 Hurricane Electric LLC103%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.93%

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
1AS24482AS2914AS3356AS4837AS138421103%10
2AS8218AS702AS4837AS13842172%6
3AS6461AS4837AS13842152%5
4AS199524AS1299AS4837AS13842152%5
5AS12779AS4837AS13842141%4
6AS13030AS1299AS4837AS13842141%4
7AS14840AS701AS4837AS13842141%2
8AS47147AS1299AS4837AS13842141%4
9AS2914AS3356AS4837AS1384213<1%3
10AS9002AS702AS4837AS1384213<1%3
11AS51185AS6762AS4837AS1384213<1%3
12AS25091AS4134AS4837AS1384213<1%3
13AS48362AS1299AS4837AS1384213<1%3
14AS3214AS10099AS9929AS4837AS1384213<1%3
15AS3257AS4837AS1384212<1%2
16AS6830AS4837AS1384212<1%2
17AS1299AS4837AS1384212<1%2
18AS6762AS4837AS1384212<1%2
19AS51184AS4837AS1384212<1%2
20AS2497AS4837AS1384212<1%2
21AS3491AS3356AS4837AS1384212<1%2
22AS25160AS174AS4837AS1384212<1%2
23AS42473AS1299AS4837AS1384212<1%2
24AS48185AS1299AS4837AS1384212<1%2
25AS34927AS1299AS4837AS1384212<1%2
26AS49544AS3356AS4837AS1384212<1%1
27AS49544AS2914AS4837AS1384212<1%2
28AS35280AS3356AS4837AS1384212<1%2
29AS14907AS1299AS4837AS1384212<1%2
30AS34019AS4134AS4837AS1384212<1%2
31AS15547AS174AS4837AS1384212<1%2
32AS47692AS33891AS4837AS1384212<1%2
33AS49544AS1299AS4837AS1384212<1%2
34AS199524AS174AS4837AS1384212<1%2
35AS59890AS3356AS4837AS1384212<1%2
36AS271253AS3356AS4837AS1384212<1%1
37AS58057AS34549AS5511AS4837AS1384212<1%2
38AS31027AS12552AS702AS4837AS1384212<1%1
39AS35710AS3320AS702AS4837AS1384212<1%2
40AS142289AS9583AS4755AS6453AS4837AS1384212<1%1
41AS4837AS1384211<1%1
42AS5511AS4837AS1384211<1%1
43AS7018AS4837AS1384211<1%1
44AS680AS4837AS1384211<1%1
45AS58299AS4837AS1384211<1%1
46AS12956AS4837AS1384211<1%1
47AS6453AS4837AS1384211<1%1
48AS8455AS4837AS1384211<1%1
49AS263152AS4837AS1384211<1%1
50AS559AS4837AS1384211<1%1

50 of 259 paths shown. All of them are in the JSON.

More prefixes from AS138421

Routes seen by RIPE RIS in the 24 hours up to 15 Sep 2026, 21:18 UTC, fetched just now.