BGP map for 121.37.48.0/21

121.37.48.0/21 is announced by AS55990 Huawei Cloud Service data center and seen by 335 peers of 23 RIPE RIS collectors, over 258 different AS paths. Its busiest upstreams are AS58466 CHINANET Guangdong province network (83%) and AS136958 China Unicom Guangdong IP network (17%). The most common path, used by 11 peers, is AS24482 AS2914 AS4134 AS58466 AS55990.

Routes checked 05:49:43 UTC

No change in the origin, the upstreams or the number of peers since 05:49 UTC, when this site first looked at 121.37.48.0/21.

AS-path graph toward 121.37.48.0/21

origin Tier 1Tier 2transitedge network prefix best path: chosen by 11 of 335 peers (3%) number on a line = peers using that link RIS data up to 05:48 UTC what the colours mean 12 of 258 paths drawn 4 quieter networks left out

Download PNG View JSON Raw upstream

335collector peers

23RIS collectors

258distinct AS paths

4.9average AS hops, 3 to 7

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS58466 CHINANET Guangdong province network	277	83%
AS136958 China Unicom Guangdong IP network	58	17%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS58466 CHINANET Guangdong province network	277	83%
AS4134 No.31,Jin-rong Street	276	82%
AS136958 China Unicom Guangdong IP network	58	17%
AS4837 CHINA UNICOM China169 Backbone	57	17%
AS1299 TWELVE99 Arelion Sweden AB	53	16%
AS2914 NTT America, Inc.	31	9%
AS174 Cogent Communications, LLC	30	9%
AS3356 Level 3 Parent, LLC	29	9%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	10	3%
AS6939 Hurricane Electric LLC	8	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 AS2914 AS4134 AS58466 AS55990	11	3%	11
2	AS8218 AS4134 AS58466 AS55990	7	2%	6
3	AS199524 AS1299 AS4134 AS58466 AS55990	6	2%	6
4	AS6461 AS4134 AS58466 AS55990	5	1%	5
5	AS12779 AS4837 AS136958 AS55990	4	1%	4
6	AS13030 AS1299 AS4134 AS58466 AS55990	4	1%	4
7	AS2914 AS4134 AS58466 AS55990	3	<1%	3
8	AS3491 AS4134 AS58466 AS55990	3	<1%	3
9	AS9002 AS4134 AS58466 AS55990	3	<1%	3
10	AS34019 AS4134 AS58466 AS55990	3	<1%	3
11	AS25091 AS4134 AS58466 AS55990	3	<1%	3
12	AS34927 AS1299 AS4134 AS58466 AS55990	3	<1%	3
13	AS14840 AS3356 AS4134 AS58466 AS55990	3	<1%	2
14	AS49544 AS2914 AS4134 AS58466 AS55990	3	<1%	3
15	AS51185 AS6762 AS4837 AS136958 AS55990	3	<1%	3
16	AS3257 AS4134 AS58466 AS55990	2	<1%	2
17	AS6830 AS4134 AS58466 AS55990	2	<1%	2
18	AS3320 AS4134 AS58466 AS55990	2	<1%	2
19	AS1299 AS4134 AS58466 AS55990	2	<1%	2
20	AS8529 AS4134 AS58466 AS55990	2	<1%	2
21	AS51184 AS4134 AS58466 AS55990	2	<1%	2
22	AS47692 AS4134 AS58466 AS55990	2	<1%	2
23	AS917 AS60068 AS4134 AS58466 AS55990	2	<1%	2
24	AS25160 AS174 AS4134 AS58466 AS55990	2	<1%	2
25	AS42473 AS1299 AS4134 AS58466 AS55990	2	<1%	2
26	AS55720 AS23764 AS4134 AS58466 AS55990	2	<1%	1
27	AS58057 AS1836 AS4134 AS58466 AS55990	2	<1%	2
28	AS49544 AS3356 AS4134 AS58466 AS55990	2	<1%	1
29	AS31027 AS1299 AS4134 AS58466 AS55990	2	<1%	1
30	AS35710 AS3320 AS4134 AS58466 AS55990	2	<1%	2
31	AS3214 AS4809 AS4134 AS58466 AS55990	2	<1%	2
32	AS14907 AS1299 AS4134 AS58466 AS55990	2	<1%	2
33	AS15547 AS174 AS4134 AS58466 AS55990	2	<1%	2
34	AS48362 AS1764 AS4134 AS58466 AS55990	2	<1%	2
35	AS47147 AS3320 AS4134 AS58466 AS55990	2	<1%	2
36	AS199524 AS174 AS4134 AS58466 AS55990	2	<1%	2
37	AS47147 AS1299 AS4134 AS58466 AS55990	2	<1%	2
38	AS59890 AS60068 AS4134 AS58466 AS55990	2	<1%	2
39	AS271253 AS3356 AS4134 AS58466 AS55990	2	<1%	1
40	AS19151 AS2914 AS4134 AS58466 AS55990	2	<1%	2
41	AS58057 AS34549 AS5511 AS4837 AS136958 AS55990	2	<1%	2
42	AS20612 AS8758 AS3303 AS4134 AS58466 AS55990	2	<1%	1
43	AS142289 AS9583 AS4755 AS6453 AS4837 AS136958 AS55990	2	<1%	1
44	AS4134 AS58466 AS55990	1	<1%	1
45	AS4837 AS136958 AS55990	1	<1%	1
46	AS5511 AS4837 AS136958 AS55990	1	<1%	1
47	AS7018 AS4837 AS136958 AS55990	1	<1%	1
48	AS6057 AS4134 AS58466 AS55990	1	<1%	1
49	AS1257 AS4134 AS58466 AS55990	1	<1%	1
50	AS49028 AS4134 AS58466 AS55990	1	<1%	1

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

More prefixes from AS55990

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 05:48 UTC, fetched just now.