BGP map for 157.122.0.0/20

157.122.0.0/20 is announced by AS17623 China Unicom Shenzen network and seen by 333 peers of 23 RIPE RIS collectors, over 258 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 AS17623.

Routes checked 04:14:49 UTC

No change in the origin, the upstreams or the number of peers since 04:14 UTC, when this site first looked at 157.122.0.0/20.

AS-path graph toward 157.122.0.0/20

origin Tier 1Tier 2edge network prefix best path: chosen by 10 of 333 peers (3%) number on a line = peers using that link RIS data up to 04:13 UTC what the colours mean 12 of 258 paths drawn 5 quieter networks left out

Download PNG View JSON Raw upstream

333collector peers

23RIS collectors

258distinct AS paths

4.2average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS4837 CHINA UNICOM China169 Backbone	333	100%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS4837 CHINA UNICOM China169 Backbone	332	100%
AS1299 TWELVE99 Arelion Sweden AB	76	23%
AS3356 Level 3 Parent, LLC	59	18%
AS174 Cogent Communications, LLC	36	11%
AS2914 NTT America, Inc.	20	6%
AS5511 Opentransit Orange S.A.	16	5%
AS3257 GTT-BACKBONE GTT Communications Inc.	13	4%
AS6939 Hurricane Electric LLC	13	4%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	12	4%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	10	3%

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 AS2914 AS3356 AS4837 AS17623	10	3%	10
2	AS8218 AS6461 AS4837 AS17623	7	2%	6
3	AS199524 AS1299 AS4837 AS17623	6	2%	6
4	AS6461 AS4837 AS17623	5	2%	5
5	AS12779 AS4837 AS17623	4	1%	4
6	AS13030 AS1299 AS4837 AS17623	4	1%	4
7	AS14840 AS701 AS4837 AS17623	4	1%	2
8	AS47147 AS1299 AS4837 AS17623	4	1%	4
9	AS2914 AS3356 AS4837 AS17623	3	<1%	3
10	AS9002 AS5511 AS4837 AS17623	3	<1%	3
11	AS34927 AS1299 AS4837 AS17623	3	<1%	3
12	AS49544 AS3356 AS4837 AS17623	3	<1%	2
13	AS51185 AS6762 AS4837 AS17623	3	<1%	3
14	AS34019 AS3303 AS4837 AS17623	3	<1%	3
15	AS48362 AS1299 AS4837 AS17623	3	<1%	3
16	AS3214 AS10099 AS9929 AS4837 AS17623	3	<1%	3
17	AS3257 AS4837 AS17623	2	<1%	2
18	AS6830 AS4837 AS17623	2	<1%	2
19	AS1299 AS4837 AS17623	2	<1%	2
20	AS6762 AS4837 AS17623	2	<1%	2
21	AS51184 AS4837 AS17623	2	<1%	2
22	AS2497 AS4837 AS17623	2	<1%	2
23	AS3491 AS3356 AS4837 AS17623	2	<1%	2
24	AS25160 AS174 AS4837 AS17623	2	<1%	2
25	AS42473 AS1299 AS4837 AS17623	2	<1%	2
26	AS48185 AS1299 AS4837 AS17623	2	<1%	2
27	AS31027 AS1299 AS4837 AS17623	2	<1%	1
28	AS35280 AS3356 AS4837 AS17623	2	<1%	2
29	AS14907 AS1299 AS4837 AS17623	2	<1%	2
30	AS15547 AS174 AS4837 AS17623	2	<1%	2
31	AS47692 AS33891 AS4837 AS17623	2	<1%	2
32	AS49544 AS1299 AS4837 AS17623	2	<1%	2
33	AS199524 AS174 AS4837 AS17623	2	<1%	2
34	AS59890 AS3356 AS4837 AS17623	2	<1%	2
35	AS271253 AS3356 AS4837 AS17623	2	<1%	1
36	AS58057 AS34549 AS5511 AS4837 AS17623	2	<1%	2
37	AS35710 AS3320 AS3356 AS4837 AS17623	2	<1%	2
38	AS20612 AS8758 AS3303 AS4837 AS17623	2	<1%	1
39	AS142289 AS9583 AS4755 AS6453 AS4837 AS17623	2	<1%	1
40	AS4837 AS17623	1	<1%	1
41	AS5511 AS4837 AS17623	1	<1%	1
42	AS680 AS4837 AS17623	1	<1%	1
43	AS58299 AS4837 AS17623	1	<1%	1
44	AS12956 AS4837 AS17623	1	<1%	1
45	AS6453 AS4837 AS17623	1	<1%	1
46	AS8455 AS4837 AS17623	1	<1%	1
47	AS263152 AS4837 AS17623	1	<1%	1
48	AS559 AS4837 AS17623	1	<1%	1
49	AS3399 AS4837 AS17623	1	<1%	1
50	AS28917 AS4837 AS17623	1	<1%	1

50 of 258 paths shown. All of them are in the JSON.

More prefixes from AS17623

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 04:13 UTC, fetched just now.