BGP map for 203.33.21.0/24

203.33.21.0/24 is announced by AS4809 China Telecom Next Generation Carrier Network and seen by 328 peers of 23 RIPE RIS collectors, over 265 different AS paths. All of those routes reach it through one upstream, AS23764 CTGNet. The most common path, used by 10 peers, is AS24482 AS23764 AS4809.

Routes checked 18:46:04 UTC

Recent route changes

8 Nov 18:46 UTCThe prefix is announced again, seen by 328 collector peers
8 Nov 02:58 UTCNo collector peer sees the prefix any more

AS-path graph toward 203.33.21.0/24

origin Tier 1Tier 2transitedge network prefix best path: chosen by 10 of 328 peers (3%) number on a line = peers using that link RIS data up to 18:45 UTC what the colours mean 12 of 265 paths drawn 6 quieter networks left out

View JSON Raw upstream

328collector peers

23RIS collectors

265distinct AS paths

4.0average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS23764 CTGNet	328	100%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS23764 CTGNet	327	100%
AS1299 TWELVE99 Arelion Sweden AB	52	16%
AS3356 Level 3 Parent, LLC	40	12%
AS174 Cogent Communications, LLC	27	8%
AS2914 NTT America, Inc.	26	8%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	18	5%
AS3257 GTT-BACKBONE GTT Communications Inc.	17	5%
AS6939 Hurricane Electric LLC	13	4%
AS3320 DTAG Deutsche Telekom AG	7	2%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	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 AS23764 AS4809	10	3%	10
2	AS8218 AS23764 AS4809	7	2%	6
3	AS6461 AS23764 AS4809	5	2%	5
4	AS13030 AS23764 AS4809	4	1%	4
5	AS2914 AS23764 AS4809	3	<1%	3
6	AS49544 AS23764 AS4809	3	<1%	3
7	AS34019 AS23764 AS4809	3	<1%	3
8	AS9002 AS3257 AS23764 AS4809	3	<1%	3
9	AS34927 AS1299 AS23764 AS4809	3	<1%	3
10	AS14840 AS3356 AS23764 AS4809	3	<1%	2
11	AS51185 AS6762 AS23764 AS4809	3	<1%	3
12	AS48362 AS1299 AS23764 AS4809	3	<1%	3
13	AS199524 AS1299 AS23764 AS4809	3	<1%	3
14	AS3320 AS23764 AS4809	2	<1%	2
15	AS1299 AS23764 AS4809	2	<1%	2
16	AS35710 AS23764 AS4809	2	<1%	2
17	AS199524 AS23764 AS4809	2	<1%	2
18	AS6762 AS23764 AS4809	2	<1%	2
19	AS3491 AS1299 AS23764 AS4809	2	<1%	2
20	AS25160 AS2914 AS23764 AS4809	2	<1%	2
21	AS58057 AS34549 AS23764 AS4809	2	<1%	2
22	AS49544 AS3356 AS23764 AS4809	2	<1%	1
23	AS31027 AS6797 AS23764 AS4809	2	<1%	1
24	AS8529 AS6453 AS23764 AS4809	2	<1%	2
25	AS14907 AS1299 AS23764 AS4809	2	<1%	2
26	AS15547 AS174 AS23764 AS4809	2	<1%	2
27	AS12779 AS3257 AS23764 AS4809	2	<1%	2
28	AS47692 AS2914 AS23764 AS4809	2	<1%	2
29	AS47147 AS3320 AS23764 AS4809	2	<1%	2
30	AS47147 AS1299 AS23764 AS4809	2	<1%	2
31	AS59890 AS3356 AS23764 AS4809	2	<1%	2
32	AS20612 AS9044 AS23764 AS4809	2	<1%	1
33	AS271253 AS3356 AS23764 AS4809	2	<1%	1
34	AS19151 AS2914 AS23764 AS4809	2	<1%	2
35	AS142289 AS9583 AS1299 AS23764 AS4809	2	<1%	1
36	AS51184 AS47692 AS2914 AS23764 AS4809	2	<1%	2
37	AS23764 AS4809	1	<1%	1
38	AS6424 AS23764 AS4809	1	<1%	1
39	AS42473 AS23764 AS4809	1	<1%	1
40	AS55720 AS23764 AS4809	1	<1%	1
41	AS34549 AS23764 AS4809	1	<1%	1
42	AS17639 AS23764 AS4809	1	<1%	1
43	AS37989 AS23764 AS4809	1	<1%	1
44	AS57187 AS23764 AS4809	1	<1%	1
45	AS36236 AS23764 AS4809	1	<1%	1
46	AS18106 AS23764 AS4809	1	<1%	1
47	AS3491 AS23764 AS4809	1	<1%	1
48	AS14907 AS23764 AS4809	1	<1%	1
49	AS35280 AS23764 AS4809	1	<1%	1
50	AS133210 AS23764 AS4809	1	<1%	1

50 of 265 paths shown. All of them are in the JSON.

More prefixes from AS4809

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 18:45 UTC, fetched just now.