BGP map for 2001:df0:21a::/48

2001:df0:21a::/48 is announced by AS23855 Singapore Advanced Research and Education Network and seen by 360 peers of 23 RIPE RIS collectors, over 254 different AS paths. Its busiest upstreams are AS4637 Telstra Global (91%), AS24482 SG.GS (3%) and AS134148 SingAREN (1%). The most common path, used by 20 peers, is AS6939 AS4637 AS23855.

Routes checked 02:51:23 UTC

No change in the origin, the upstreams or the number of peers since 02:51 UTC, when this site first looked at 2001:df0:21a::/48.

AS-path graph toward 2001:df0:21a::/48

origin Tier 1Tier 2edge network prefix best path: chosen by 20 of 360 peers (6%) number on a line = peers using that link RIS data up to 02:50 UTC what the colours mean 12 of 254 paths drawn 2 quieter networks left out

Download PNG View JSON Raw upstream

360collector peers

23RIS collectors

254distinct AS paths

3.7average AS hops, 1 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS4637 Telstra Global	329	91%
AS24482 SG.GS	11	3%
AS134148 SingAREN	4	1%
AS20965 GEANT GEANT Vereniging	4	1%
AS1103 SURFNET-NL SURF B.V.	2	<1%
AS4777 Asia Pacific Network Information Centre	1	<1%
AS59105 Home NOC Operators Group	1	<1%
AS38229 Lanka Education & Research Network, NREN	1	<1%
AS38001 NewMedia Express Pte Ltd	1	<1%
AS36236 NetActuate, Inc	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS4637 Telstra Global	329	91%
AS6939 Hurricane Electric LLC	215	60%
AS3356 Level 3 Parent, LLC	7	2%
AS9002 RETN-AS RETN Limited	5	1%
AS1299 TWELVE99 Arelion Sweden AB	4	1%
AS134148 SingAREN	4	1%
AS20965 GEANT GEANT Vereniging	4	1%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	4	1%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	4	1%
AS1273 IDDQD-AS	3	<1%

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 AS4637 AS23855	20	6%	16
2	AS24482 AS23855	11	3%	11
3	AS8218 AS6939 AS4637 AS23855	7	2%	6
4	AS9002 AS4637 AS23855	5	1%	5
5	AS6461 AS4637 AS23855	5	1%	5
6	AS13030 AS4637 AS23855	4	1%	4
7	AS199524 AS6939 AS4637 AS23855	4	1%	4
8	AS58057 AS6939 AS4637 AS23855	4	1%	3
9	AS34927 AS6939 AS4637 AS23855	4	1%	3
10	AS14840 AS6939 AS4637 AS23855	4	1%	2
11	AS12779 AS6939 AS4637 AS23855	4	1%	4
12	AS51185 AS6939 AS4637 AS23855	3	<1%	3
13	AS2914 AS6939 AS4637 AS23855	3	<1%	3
14	AS48185 AS6939 AS4637 AS23855	3	<1%	3
15	AS3214 AS6939 AS4637 AS23855	3	<1%	3
16	AS48362 AS6939 AS4637 AS23855	3	<1%	3
17	AS15547 AS6939 AS4637 AS23855	3	<1%	3
18	AS2497 AS4637 AS23855	2	<1%	2
19	AS19151 AS4637 AS23855	2	<1%	2
20	AS6762 AS4637 AS23855	2	<1%	2
21	AS31027 AS4637 AS23855	2	<1%	1
22	AS8529 AS4637 AS23855	2	<1%	2
23	AS1299 AS4637 AS23855	2	<1%	2
24	AS3257 AS4637 AS23855	2	<1%	2
25	AS47147 AS4637 AS23855	2	<1%	2
26	AS3320 AS4637 AS23855	2	<1%	2
27	AS6830 AS4637 AS23855	2	<1%	2
28	AS14907 AS4637 AS23855	2	<1%	2
29	AS49544 AS4637 AS23855	2	<1%	2
30	AS3491 AS4637 AS23855	2	<1%	2
31	AS852 AS6939 AS4637 AS23855	2	<1%	2
32	AS1403 AS6939 AS4637 AS23855	2	<1%	1
33	AS14907 AS6939 AS4637 AS23855	2	<1%	2
34	AS50628 AS6939 AS4637 AS23855	2	<1%	2
35	AS37721 AS1273 AS4637 AS23855	2	<1%	1
36	AS49544 AS6939 AS4637 AS23855	2	<1%	2
37	AS6667 AS6939 AS4637 AS23855	2	<1%	2
38	AS34019 AS6939 AS4637 AS23855	2	<1%	2
39	AS47692 AS6939 AS4637 AS23855	2	<1%	2
40	AS51184 AS6939 AS4637 AS23855	2	<1%	2
41	AS12859 AS6939 AS4637 AS23855	2	<1%	1
42	AS25160 AS1299 AS4637 AS23855	2	<1%	2
43	AS42473 AS6939 AS4637 AS23855	2	<1%	2
44	AS62167 AS6939 AS4637 AS23855	2	<1%	2
45	AS202032 AS6939 AS4637 AS23855	2	<1%	2
46	AS28917 AS6939 AS4637 AS23855	2	<1%	1
47	AS59890 AS6939 AS4637 AS23855	2	<1%	2
48	AS20612 AS6939 AS4637 AS23855	2	<1%	1
49	AS206271 AS60707 AS6939 AS4637 AS23855	2	<1%	1
50	AS142289 AS9583 AS6939 AS4637 AS23855	2	<1%	1

50 of 254 paths shown. All of them are in the JSON.

More prefixes from AS23855

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 02:50 UTC, fetched just now.