BGP map for 121.194.0.0/15

121.194.0.0/15 is announced by AS4538 China Education and Research Network Center and seen by 372 peers of 23 RIPE RIS collectors, over 276 different AS paths. Its busiest upstreams are AS6939 Hurricane Electric LLC (52%), AS58453 China Mobile International Limited (18%) and AS2914 NTT America, Inc. (12%). The most common path, used by 23 peers, is AS6939 AS4538.

Routes checked 18:33:50 UTC

No change in the origin, the upstreams or the number of peers since 19:54 UTC on 25 Oct, when this site first looked at 121.194.0.0/15.

AS-path graph toward 121.194.0.0/15

origin Tier 1Tier 2edge network prefix best path: chosen by 23 of 372 peers (6%) number on a line = peers using that link RIS data up to 18:32 UTC what the colours mean 12 of 276 paths drawn 4 quieter networks left out

View JSON Raw upstream

372collector peers

23RIS collectors

276distinct AS paths

3.2average AS hops, 2 to 7

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS6939 Hurricane Electric LLC	192	52%
AS58453 China Mobile International Limited	67	18%
AS2914 NTT America, Inc.	46	12%
AS3491 PCCW Global (HK) Ltd.	35	9%
AS4635 Hong Kong Internet Exchange--Route Server 1	13	3%
AS4837 CHINA UNICOM China169 Backbone	8	2%
AS20965 GEANT GEANT Vereniging	5	1%
AS23911 China Next Generation Internet Beijing IX	2	<1%
AS24482 SG.GS	1	<1%
AS36236 NetActuate, Inc	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS6939 Hurricane Electric LLC	169	45%
AS58453 China Mobile International Limited	67	18%
AS2914 NTT America, Inc.	43	12%
AS3491 PCCW Global (HK) Ltd.	32	9%
AS4635 Hong Kong Internet Exchange--Route Server 1	13	3%
AS4837 CHINA UNICOM China169 Backbone	8	2%
AS8966 Etisalat-AS EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC	7	2%
AS1299 TWELVE99 Arelion Sweden AB	7	2%
AS35280 F5 F5 Networks SARL	6	2%
AS10099 China Unicom Global	5	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 origin	Peers	Share	Collectors
1	AS6939 AS4538	23	6%	18
2	AS24482 AS58453 AS4538	9	2%	9
3	AS8218 AS6939 AS4538	7	2%	6
4	AS13030 AS3491 AS4538	4	1%	4
5	AS9002 AS58453 AS4538	4	1%	4
6	AS34927 AS6939 AS4538	4	1%	3
7	AS14840 AS58453 AS4538	4	1%	2
8	AS2914 AS4538	3	<1%	3
9	AS3491 AS4538	3	<1%	3
10	AS6461 AS3491 AS4538	3	<1%	3
11	AS48185 AS6939 AS4538	3	<1%	3
12	AS199524 AS58453 AS4538	3	<1%	3
13	AS25091 AS58453 AS4538	3	<1%	3
14	AS48362 AS6939 AS4538	3	<1%	3
15	AS3214 AS10099 AS9929 AS4837 AS4538	3	<1%	3
16	AS34019 AS29169 AS35280 AS8966 AS4635 AS4538	3	<1%	3
17	AS6830 AS2914 AS4538	2	<1%	2
18	AS3320 AS2914 AS4538	2	<1%	2
19	AS62167 AS6939 AS4538	2	<1%	2
20	AS6424 AS6939 AS4538	2	<1%	2
21	AS25160 AS2914 AS4538	2	<1%	2
22	AS42473 AS6939 AS4538	2	<1%	2
23	AS1299 AS58453 AS4538	2	<1%	2
24	AS50628 AS6939 AS4538	2	<1%	2
25	AS14907 AS6939 AS4538	2	<1%	2
26	AS49544 AS6939 AS4538	2	<1%	2
27	AS31027 AS6939 AS4538	2	<1%	1
28	AS8529 AS6939 AS4538	2	<1%	2
29	AS51185 AS58453 AS4538	2	<1%	2
30	AS14907 AS3491 AS4538	2	<1%	2
31	AS15547 AS58453 AS4538	2	<1%	2
32	AS12779 AS58453 AS4538	2	<1%	2
33	AS6461 AS2914 AS4538	2	<1%	2
34	AS51184 AS6939 AS4538	2	<1%	2
35	AS199524 AS2914 AS4538	2	<1%	2
36	AS47692 AS2914 AS4538	2	<1%	2
37	AS49544 AS3491 AS4538	2	<1%	2
38	AS59890 AS6939 AS4538	2	<1%	2
39	AS20612 AS6939 AS4538	2	<1%	1
40	AS202032 AS6939 AS4538	2	<1%	2
41	AS271253 AS6939 AS4538	2	<1%	1
42	AS2497 AS4837 AS4538	2	<1%	2
43	AS19151 AS58453 AS4538	2	<1%	2
44	AS58057 AS34549 AS2914 AS4538	2	<1%	2
45	AS142289 AS9583 AS6939 AS4538	2	<1%	1
46	AS47147 AS1299 AS58453 AS4538	2	<1%	2
47	AS24482 AS4538	1	<1%	1
48	AS36236 AS4538	1	<1%	1
49	AS49544 AS4538	1	<1%	1
50	AS15692 AS2914 AS4538	1	<1%	1

50 of 276 paths shown. All of them are in the JSON.

More prefixes from AS4538

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 18:32 UTC, fetched just now.