BGP map for 203.171.18.0/23

203.171.18.0/23 is announced by AS45903 CMC Telecom Infrastructure Company and seen by 349 peers of 23 RIPE RIS collectors, over 269 different AS paths. Its busiest upstreams are AS9304 HGC Global Communications Limited (23%), AS2914 NTT America, Inc. (17%) and AS7473 Singapore Telecommunications Ltd (9%). The most common path, used by 8 peers, is AS6939 AS15412 AS9304 AS45903.

Routes checked 17:22:17 UTC

No change in the origin, the upstreams or the number of peers since 07:04 UTC on 29 Oct, when this site first looked at 203.171.18.0/23.

AS-path graph toward 203.171.18.0/23

origin Tier 1Tier 2transitedge network prefix best path: chosen by 8 of 349 peers (2%) number on a line = peers using that link RIS data up to 17:21 UTC what the colours mean 12 of 269 paths drawn 5 quieter networks left out

View JSON Raw upstream

349collector peers

23RIS collectors

269distinct AS paths

3.4average AS hops, 1 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS9304 HGC Global Communications Limited	80	23%
AS2914 NTT America, Inc.	59	17%
AS7473 Singapore Telecommunications Ltd	31	9%
AS3491 PCCW Global (HK) Ltd.	27	8%
AS21859 Zenlayer Inc	7	2%
AS24482 SG.GS	6	2%
AS14840 BR.Digital Telecom	5	1%
AS34019 HIVANE Hivane Association	5	1%
AS35280 F5 F5 Networks SARL	5	1%
AS47147 AS-ANX Anexia Cloud Solutions GmbH	4	1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS9304 HGC Global Communications Limited	80	23%
AS15412 FLAG-AS Flag Telecom UK Limited	76	22%
AS2914 NTT America, Inc.	56	16%
AS6939 Hurricane Electric LLC	46	13%
AS7473 Singapore Telecommunications Ltd	31	9%
AS3491 PCCW Global (HK) Ltd.	24	7%
AS6461 Zayo Bandwidth	20	6%
AS3356 Level 3 Parent, LLC	18	5%
AS21859 Zenlayer Inc	7	2%
AS9002 RETN-AS RETN Limited	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	AS6939 AS15412 AS9304 AS45903	8	2%	8
2	AS8218 AS6461 AS7473 AS45903	7	2%	6
3	AS24482 AS45903	6	2%	6
4	AS6461 AS7473 AS45903	5	1%	5
5	AS14840 AS45903	4	1%	2
6	AS47147 AS45903	4	1%	4
7	AS13030 AS3491 AS45903	4	1%	4
8	AS2914 AS45903	3	<1%	3
9	AS3491 AS45903	3	<1%	3
10	AS49544 AS45903	3	<1%	3
11	AS34019 AS45903	3	<1%	3
12	AS25091 AS45903	3	<1%	3
13	AS48362 AS45903	3	<1%	3
14	AS9002 AS2914 AS45903	3	<1%	3
15	AS48185 AS6461 AS7473 AS45903	3	<1%	3
16	AS25160 AS45903	2	<1%	2
17	AS35710 AS45903	2	<1%	2
18	AS8529 AS45903	2	<1%	2
19	AS199524 AS45903	2	<1%	2
20	AS35280 AS45903	2	<1%	2
21	AS212483 AS45903	2	<1%	1
22	AS15547 AS45903	2	<1%	2
23	AS12779 AS45903	2	<1%	2
24	AS51184 AS45903	2	<1%	2
25	AS47692 AS45903	2	<1%	2
26	AS3257 AS3491 AS45903	2	<1%	2
27	AS6830 AS2914 AS45903	2	<1%	2
28	AS3320 AS2914 AS45903	2	<1%	2
29	AS1299 AS7473 AS45903	2	<1%	2
30	AS142289 AS9583 AS45903	2	<1%	1
31	AS31027 AS6797 AS45903	2	<1%	1
32	AS20612 AS8758 AS45903	2	<1%	1
33	AS2497 AS2914 AS45903	2	<1%	2
34	AS62167 AS15412 AS9304 AS45903	2	<1%	2
35	AS24482 AS6461 AS7473 AS45903	2	<1%	2
36	AS42473 AS9002 AS2914 AS45903	2	<1%	2
37	AS49544 AS3356 AS2914 AS45903	2	<1%	1
38	AS18041 AS15412 AS9304 AS45903	2	<1%	1
39	AS199524 AS15412 AS9304 AS45903	2	<1%	2
40	AS6762 AS15412 AS9304 AS45903	2	<1%	2
41	AS59890 AS3356 AS2914 AS45903	2	<1%	2
42	AS271253 AS3356 AS2914 AS45903	2	<1%	1
43	AS19151 AS15412 AS9304 AS45903	2	<1%	2
44	AS917 AS60068 AS15412 AS9304 AS45903	2	<1%	2
45	AS6424 AS6939 AS15412 AS9304 AS45903	2	<1%	2
46	AS34927 AS6939 AS15412 AS9304 AS45903	2	<1%	2
47	AS51185 AS6762 AS15412 AS9304 AS45903	2	<1%	2
48	AS24482 AS6939 AS15412 AS9304 AS45903	2	<1%	2
49	AS45903	1	<1%	1
50	AS5511 AS45903	1	<1%	1

50 of 269 paths shown. All of them are in the JSON.

More prefixes from AS45903

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 17:21 UTC, fetched just now.