bgpmap

BGP map for 221.123.128.0/18

221.123.128.0/18 is announced by 2 networks, mostly AS23724 IDC, China Telecommunications Corporation and seen by 330 peers of 23 RIPE RIS collectors, over 250 different AS paths. Its busiest upstreams are AS4134 No.31,Jin-rong Street (99%) and AS58807 China Mobile International Limited (<1%). The most common path, used by 11 peers, is AS24482 AS2914 AS4134 AS23724.

Routes checked 21:25:23 UTC

No change in the origin, the upstreams or the number of peers since 21:25 UTC, when this site first looked at 221.123.128.0/18.

AS-path graph toward 221.123.128.0/18
BGP map of 221.123.128.0/1814 networks on the paths RIPE RIS collector peers use to reach 221.123.128.0/18. Best path, chosen by the most peers: AS24482 → AS2914 → AS4134 → AS23724.AS8218 → AS4134 · 7 routesAS199524 → AS1299 · 6 routesAS1299 → AS4134 · 10 routesAS6461 → AS4134 · 5 routesAS13030 → AS1299 · 4 routesAS12779 → AS174 · 4 routesAS174 → AS4134 · 4 routesAS58807 → AS9808 · 3 routesAS9808 → 221.123.128.0/18 · 3 routesAS24482 → AS2914 · 11 routes · best pathAS2914 → AS4134 · 14 routes · best pathAS4134 → AS23724 · 53 routes · best pathAS23724 → 221.123.128.0/18 · 53 routes · best path7AS8218 → AS4134 · 7 routes6AS199524 → AS1299 · 6 routes10AS1299 → AS4134 · 10 routes5AS6461 → AS4134 · 5 routes4AS13030 → AS1299 · 4 routes4AS12779 → AS174 · 4 routes4AS174 → AS4134 · 4 routes3AS58807 → AS9808 · 3 routes3AS9808 → 221.123.128.0/18 · 3 routes11AS24482 → AS2914 · 11 routes · best path14AS2914 → AS4134 · 14 routes · best path53AS4134 → AS23724 · 53 routes · best path53AS23724 → 221.123.128.0/18 · 53 routes · best pathT2AS4134No.31,Jin-rong StreetAS4134 No.31,Jin-rong Street · Tier 2 · 53 routes · on the best pathAS23724IDC, China TelecommunicationsCorporationAS23724 IDC, China Telecommunications Corporation · origin · 53 routes · on the best pathT1AS2914NTT America, Inc.AS2914 NTT America, Inc. · Tier 1 · 14 routes · on the best pathAS24482SG.GSAS24482 SG.GS · edge network · 11 routes · on the best pathT1AS1299TWELVE99 ArelionSweden ABAS1299 TWELVE99 Arelion Sweden AB · Tier 1 · 10 routesAS8218NEO-ASN ZayoInfrastructure France SAAS8218 NEO-ASN Zayo Infrastructure France SA · edge network · 7 routesAS199524GCORE G-Core Labs S.A.AS199524 GCORE G-Core Labs S.A. · edge network · 6 routesT1AS6461Zayo BandwidthAS6461 Zayo Bandwidth · Tier 1 · 5 routesT2AS13030INIT7 Init7(Switzerland) Ltd.AS13030 INIT7 Init7 (Switzerland) Ltd. · Tier 2 · 4 routesAS12779ITGATE IT.Gate S.p.A.AS12779 ITGATE IT.Gate S.p.A. · edge network · 4 routesT1AS174CogentCommunications, LLCAS174 Cogent Communications, LLC · Tier 1 · 4 routesAS14840BR.Digital TelecomAS14840 BR.Digital Telecom · edge network · 4 routesAS58807China MobileInternational LimitedAS58807 China Mobile International Limited · transit · 3 routesT2AS9808China Mobile CommunicationsGroup Co., Ltd.AS9808 China Mobile Communications Group Co., Ltd. · origin, Tier 2 · 3 routes221.123.128.0/18221.123.128.0/18

origin Tier 1Tier 2transitedge network prefix best path: chosen by 11 of 330 peers (3%) number on a line = peers using that link RIS data up to 21:24 UTC what the colours mean 12 of 250 paths drawn 5 quieter networks left out

Download PNG View JSON Raw upstream

330collector peers
23RIS collectors
250distinct AS paths
4.0average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

NetworkPeersShare
AS4134 No.31,Jin-rong Street32799%
AS58807 China Mobile International Limited3<1%

Transit networks

Networks between the collector peer and the origin.

NetworkPeersShare
AS4134 No.31,Jin-rong Street32699%
AS1299 TWELVE99 Arelion Sweden AB5517%
AS174 Cogent Communications, LLC3611%
AS2914 NTT America, Inc.3310%
AS3356 Level 3 Parent, LLC237%
AS3257 GTT-BACKBONE GTT Communications Inc.144%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.103%
AS6939 Hurricane Electric LLC93%
AS3320 DTAG Deutsche Telekom AG72%
AS6453 TATA COMMUNICATIONS (AMERICA) INC72%

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
1AS24482AS2914AS4134AS23724113%11
2AS8218AS4134AS2372472%6
3AS199524AS1299AS4134AS2372462%6
4AS6461AS4134AS2372452%5
5AS13030AS1299AS4134AS2372441%4
6AS12779AS174AS4134AS2372441%4
7AS14840AS701AS4134AS2372441%2
8AS2914AS4134AS237243<1%3
9AS3491AS4134AS237243<1%3
10AS9002AS4134AS237243<1%3
11AS3214AS58807AS98083<1%3
12AS34019AS4134AS237243<1%3
13AS25091AS4134AS237243<1%3
14AS34927AS1299AS4134AS237243<1%3
15AS49544AS2914AS4134AS237243<1%3
16AS51185AS6762AS4134AS237243<1%3
17AS3257AS4134AS237242<1%2
18AS6830AS4134AS237242<1%2
19AS3320AS4134AS237242<1%2
20AS1299AS4134AS237242<1%2
21AS8529AS4134AS237242<1%2
22AS6762AS4134AS237242<1%2
23AS51184AS4134AS237242<1%2
24AS47692AS4134AS237242<1%2
25AS2497AS4134AS237242<1%2
26AS917AS60068AS4134AS237242<1%2
27AS25160AS174AS4134AS237242<1%2
28AS42473AS1299AS4134AS237242<1%2
29AS58057AS1836AS4134AS237242<1%2
30AS49544AS3356AS4134AS237242<1%1
31AS31027AS1299AS4134AS237242<1%1
32AS35710AS3320AS4134AS237242<1%2
33AS14907AS1299AS4134AS237242<1%2
34AS15547AS174AS4134AS237242<1%2
35AS48362AS1764AS4134AS237242<1%2
36AS47147AS3320AS4134AS237242<1%2
37AS199524AS174AS4134AS237242<1%2
38AS47147AS1299AS4134AS237242<1%2
39AS59890AS60068AS4134AS237242<1%2
40AS271253AS3356AS4134AS237242<1%1
41AS19151AS2914AS4134AS237242<1%2
42AS58057AS34549AS3257AS4134AS237242<1%2
43AS20612AS8758AS3303AS4134AS237242<1%1
44AS142289AS9583AS4755AS6453AS4134AS237242<1%1
45AS4134AS237241<1%1
46AS7018AS4134AS237241<1%1
47AS6057AS4134AS237241<1%1
48AS1257AS4134AS237241<1%1
49AS49028AS4134AS237241<1%1
50AS2027AS4134AS237241<1%1

50 of 250 paths shown. All of them are in the JSON.

More prefixes from AS23724

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