BGP map for 2a0b:21c0:4000::/36

2a0b:21c0:4000::/36 is announced by AS21859 Zenlayer Inc and seen by 328 peers of 23 RIPE RIS collectors, over 244 different AS paths. Its busiest upstreams are AS6939 Hurricane Electric LLC (26%), AS3257 GTT-BACKBONE (22%) and AS6762 SEABONE-NET (14%). The most common path, used by 9 peers, is AS6939 AS21859.

Routes checked 14:36:31 UTC

No change in the origin, the upstreams or the number of peers since 10:42 UTC on 29 Oct, when this site first looked at 2a0b:21c0:4000::/36.

AS-path graph toward 2a0b:21c0:4000::/36

origin Tier 1Tier 2edge network prefix best path: chosen by 9 of 328 peers (3%) number on a line = peers using that link RIS data up to 14:35 UTC what the colours mean 12 of 244 paths drawn 5 quieter networks left out

View JSON Raw upstream

328collector peers

23RIS collectors

244distinct AS paths

3.0average AS hops, 2 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS6939 Hurricane Electric LLC	84	26%
AS3257 GTT-BACKBONE GTT Communications Inc.	71	22%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	45	14%
AS9002 RETN-AS RETN Limited	16	5%
AS25091 IP-Max IP-Max SA	10	3%
AS24482 SG.GS	9	3%
AS13030 INIT7 Init7 (Switzerland) Ltd.	6	2%
AS14840 BR.Digital Telecom	5	2%
AS6830 LibertyGlobal Liberty Global Europe Holding B.V.	5	2%
AS33891 CORE-BACKBONE Core-Backbone GmbH	5	2%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS6939 Hurricane Electric LLC	75	23%
AS3257 GTT-BACKBONE GTT Communications Inc.	69	21%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	43	13%
AS9002 RETN-AS RETN Limited	11	3%
AS2914 NTT America, Inc.	10	3%
AS1299 TWELVE99 Arelion Sweden AB	10	3%
AS6461 Zayo Bandwidth	7	2%
AS25091 IP-Max IP-Max SA	7	2%
AS33891 CORE-BACKBONE Core-Backbone GmbH	5	2%
AS174 Cogent Communications, LLC	5	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 AS21859	9	3%	9
2	AS24482 AS21859	9	3%	9
3	AS8218 AS6461 AS3257 AS21859	7	2%	6
4	AS9002 AS21859	5	2%	5
5	AS13030 AS21859	4	1%	4
6	AS14840 AS21859	4	1%	2
7	AS14907 AS6939 AS21859	4	1%	4
8	AS48185 AS21859	3	<1%	3
9	AS12779 AS21859	3	<1%	3
10	AS48362 AS21859	3	<1%	3
11	AS25091 AS21859	3	<1%	3
12	AS199524 AS3257 AS21859	3	<1%	3
13	AS6461 AS6762 AS21859	3	<1%	3
14	AS34019 AS25091 AS21859	3	<1%	3
15	AS3491 AS3257 AS21859	3	<1%	3
16	AS6762 AS21859	2	<1%	2
17	AS51185 AS21859	2	<1%	2
18	AS8529 AS21859	2	<1%	2
19	AS3257 AS21859	2	<1%	2
20	AS34927 AS21859	2	<1%	2
21	AS6830 AS21859	2	<1%	2
22	AS25160 AS21859	2	<1%	2
23	AS49544 AS21859	2	<1%	2
24	AS212483 AS21859	2	<1%	1
25	AS62167 AS21859	2	<1%	2
26	AS2497 AS3257 AS21859	2	<1%	2
27	AS2914 AS6762 AS21859	2	<1%	2
28	AS852 AS3257 AS21859	2	<1%	2
29	AS58057 AS34549 AS21859	2	<1%	2
30	AS34927 AS6939 AS21859	2	<1%	1
31	AS35710 AS6939 AS21859	2	<1%	2
32	AS1299 AS3257 AS21859	2	<1%	2
33	AS6667 AS3257 AS21859	2	<1%	2
34	AS47692 AS6939 AS21859	2	<1%	2
35	AS51184 AS6939 AS21859	2	<1%	2
36	AS6461 AS3257 AS21859	2	<1%	2
37	AS202032 AS6939 AS21859	2	<1%	2
38	AS15547 AS6939 AS21859	2	<1%	2
39	AS28917 AS3257 AS21859	2	<1%	1
40	AS59890 AS6939 AS21859	2	<1%	2
41	AS58057 AS6939 AS21859	2	<1%	1
42	AS1403 AS577 AS6939 AS21859	2	<1%	1
43	AS49544 AS3356 AS6762 AS21859	2	<1%	1
44	AS49544 AS2914 AS6762 AS21859	2	<1%	2
45	AS12859 AS1299 AS6762 AS21859	2	<1%	1
46	AS20612 AS8758 AS9002 AS21859	2	<1%	1
47	AS206271 AS60707 AS12735 AS6762 AS21859	2	<1%	1
48	AS142289 AS9583 AS2914 AS6762 AS21859	2	<1%	1
49	AS17639 AS21859	1	<1%	1
50	AS50300 AS21859	1	<1%	1

50 of 244 paths shown. All of them are in the JSON.

More prefixes from AS21859

Routes seen by RIPE RIS in the 24 hours up to 31 Oct 2026, 14:35 UTC, fetched just now.