BGP map for 210.72.32.0/20

210.72.32.0/20 is announced by AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) and seen by 332 peers of 23 RIPE RIS collectors, over 259 different AS paths. Its busiest upstreams are AS174 Cogent Communications, LLC (54%), AS3491 PCCW Global (HK) Ltd. (25%) and AS4134 No.31,Jin-rong Street (6%). The most common path, used by 11 peers, is AS24482 AS7497.

Routes checked 07:21:03 UTC

No change in the origin, the upstreams or the number of peers since 07:21 UTC, when this site first looked at 210.72.32.0/20.

AS-path graph toward 210.72.32.0/20

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 332 peers (3%) number on a line = peers using that link RIS data up to 07:20 UTC what the colours mean 12 of 259 paths drawn 3 quieter networks left out

Download PNG View JSON Raw upstream

332collector peers

23RIS collectors

259distinct AS paths

3.6average AS hops, 2 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	178	54%
AS3491 PCCW Global (HK) Ltd.	84	25%
AS4134 No.31,Jin-rong Street	21	6%
AS6939 Hurricane Electric LLC	15	5%
AS24482 SG.GS	11	3%
AS4635 Hong Kong Internet Exchange--Route Server 1	7	2%
AS20965 GEANT GEANT Vereniging	4	1%
AS9808 China Mobile Communications Group Co., Ltd.	3	<1%
AS1103 SURFNET-NL SURF B.V.	2	<1%
AS4837 CHINA UNICOM China169 Backbone	2	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	178	54%
AS3491 PCCW Global (HK) Ltd.	81	24%
AS1299 TWELVE99 Arelion Sweden AB	37	11%
AS4134 No.31,Jin-rong Street	21	6%
AS6939 Hurricane Electric LLC	15	5%
AS2914 NTT America, Inc.	12	4%
AS3356 Level 3 Parent, LLC	11	3%
AS6461 Zayo Bandwidth	9	3%
AS4635 Hong Kong Internet Exchange--Route Server 1	7	2%
AS3320 DTAG Deutsche Telekom AG	6	2%

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	AS24482 AS7497	11	3%	11
2	AS8218 AS6461 AS174 AS7497	7	2%	6
3	AS199524 AS174 AS7497	5	2%	5
4	AS13030 AS3491 AS7497	4	1%	4
5	AS9002 AS3491 AS7497	4	1%	4
6	AS12779 AS174 AS7497	4	1%	4
7	AS14840 AS174 AS7497	4	1%	2
8	AS199524 AS3491 AS7497	4	1%	4
9	AS6461 AS174 AS7497	4	1%	4
10	AS3491 AS7497	3	<1%	3
11	AS34019 AS4134 AS7497	3	<1%	3
12	AS25091 AS4134 AS7497	3	<1%	3
13	AS3214 AS58807 AS9808 AS7497	3	<1%	3
14	AS3257 AS174 AS7497	2	<1%	2
15	AS6830 AS174 AS7497	2	<1%	2
16	AS3320 AS3491 AS7497	2	<1%	2
17	AS2914 AS3491 AS7497	2	<1%	2
18	AS62167 AS174 AS7497	2	<1%	2
19	AS25160 AS174 AS7497	2	<1%	2
20	AS1299 AS174 AS7497	2	<1%	2
21	AS8529 AS6939 AS7497	2	<1%	2
22	AS14907 AS3491 AS7497	2	<1%	2
23	AS15547 AS174 AS7497	2	<1%	2
24	AS49544 AS3491 AS7497	2	<1%	2
25	AS59890 AS6939 AS7497	2	<1%	2
26	AS271253 AS174 AS7497	2	<1%	1
27	AS19151 AS174 AS7497	2	<1%	2
28	AS917 AS60068 AS174 AS7497	2	<1%	2
29	AS34927 AS1299 AS174 AS7497	2	<1%	2
30	AS58057 AS34549 AS174 AS7497	2	<1%	2
31	AS49544 AS3356 AS3491 AS7497	2	<1%	1
32	AS31027 AS1299 AS174 AS7497	2	<1%	1
33	AS35710 AS3320 AS3491 AS7497	2	<1%	2
34	AS51185 AS6762 AS174 AS7497	2	<1%	2
35	AS51184 AS1764 AS174 AS7497	2	<1%	2
36	AS48362 AS1764 AS174 AS7497	2	<1%	2
37	AS47692 AS2914 AS3491 AS7497	2	<1%	2
38	AS47147 AS1299 AS174 AS7497	2	<1%	2
39	AS20612 AS9044 AS174 AS7497	2	<1%	1
40	AS142289 AS9583 AS1299 AS3491 AS7497	2	<1%	1
41	AS36236 AS7497	1	<1%	1
42	AS49544 AS7497	1	<1%	1
43	AS1103 AS7497	1	<1%	1
44	AS31742 AS174 AS7497	1	<1%	1
45	AS6461 AS3491 AS7497	1	<1%	1
46	AS1828 AS3491 AS7497	1	<1%	1
47	AS6424 AS174 AS7497	1	<1%	1
48	AS39122 AS174 AS7497	1	<1%	1
49	AS3170 AS174 AS7497	1	<1%	1
50	AS7018 AS3491 AS7497	1	<1%	1

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

More prefixes from AS7497

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 07:20 UTC, fetched just now.