BGP map for 2a0b:21c1:1000::/36

2a0b:21c1:1000::/36 is announced by AS21859 Zenlayer Inc and seen by 326 peers of 23 RIPE RIS collectors, over 244 different AS paths. Its busiest upstreams are AS174 Cogent Communications, LLC (34%), AS6939 Hurricane Electric LLC (32%) and AS3257 GTT-BACKBONE (18%). The most common path, used by 9 peers, is AS6939 AS21859.

Routes checked 14:35:56 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:21c1:1000::/36.

AS-path graph toward 2a0b:21c1:1000::/36

origin Tier 1Tier 2edge network prefix best path: chosen by 9 of 326 peers (3%) number on a line = peers using that link RIS data up to 14:34 UTC what the colours mean 12 of 244 paths drawn 3 quieter networks left out

View JSON Raw upstream

326collector peers

23RIS collectors

244distinct AS paths

3.3average AS hops, 2 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	111	34%
AS6939 Hurricane Electric LLC	103	32%
AS3257 GTT-BACKBONE GTT Communications Inc.	58	18%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	33	10%
AS34019 HIVANE Hivane Association	6	2%
AS12779 ITGATE IT.Gate S.p.A.	3	<1%
AS49544 i3Dnet i3D.net B.V	2	<1%
AS8220 COLT COLT Technology Services Group Limited	2	<1%
AS51185 MAINSTREAMING-AS MainStreaming SpA	1	<1%
AS5394 Unidata UNIDATA S.p.A.	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	111	34%
AS6939 Hurricane Electric LLC	94	29%
AS3257 GTT-BACKBONE GTT Communications Inc.	56	17%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	31	10%
AS1299 TWELVE99 Arelion Sweden AB	20	6%
AS2914 NTT America, Inc.	16	5%
AS6461 Zayo Bandwidth	8	2%
AS3356 Level 3 Parent, LLC	6	2%
AS3320 DTAG Deutsche Telekom AG	4	1%
AS1764 NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	4	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 AS21859	9	3%	9
2	AS9002 AS3257 AS21859	5	2%	5
3	AS6461 AS174 AS21859	5	2%	5
4	AS24482 AS2914 AS3257 AS21859	5	2%	5
5	AS8218 AS6461 AS174 AS21859	5	2%	5
6	AS14907 AS6939 AS21859	4	1%	4
7	AS58057 AS6939 AS21859	4	1%	3
8	AS13030 AS1299 AS174 AS21859	4	1%	4
9	AS24482 AS2914 AS6762 AS21859	4	1%	4
10	AS12779 AS21859	3	<1%	3
11	AS34019 AS21859	3	<1%	3
12	AS34927 AS6939 AS21859	3	<1%	2
13	AS14840 AS174 AS21859	3	<1%	2
14	AS3214 AS6939 AS21859	3	<1%	3
15	AS25091 AS3257 AS21859	3	<1%	3
16	AS6762 AS21859	2	<1%	2
17	AS3257 AS21859	2	<1%	2
18	AS49544 AS21859	2	<1%	2
19	AS19151 AS174 AS21859	2	<1%	2
20	AS199524 AS3257 AS21859	2	<1%	2
21	AS2914 AS6762 AS21859	2	<1%	2
22	AS8529 AS6939 AS21859	2	<1%	2
23	AS35710 AS6939 AS21859	2	<1%	2
24	AS1299 AS174 AS21859	2	<1%	2
25	AS6667 AS3257 AS21859	2	<1%	2
26	AS47692 AS6939 AS21859	2	<1%	2
27	AS51184 AS6939 AS21859	2	<1%	2
28	AS6830 AS174 AS21859	2	<1%	2
29	AS25160 AS174 AS21859	2	<1%	2
30	AS6424 AS174 AS21859	2	<1%	2
31	AS62167 AS6939 AS21859	2	<1%	2
32	AS202032 AS6939 AS21859	2	<1%	2
33	AS15547 AS6939 AS21859	2	<1%	2
34	AS28917 AS3257 AS21859	2	<1%	1
35	AS59890 AS6939 AS21859	2	<1%	2
36	AS3491 AS174 AS21859	2	<1%	2
37	AS199524 AS6939 AS21859	2	<1%	2
38	AS1403 AS577 AS6939 AS21859	2	<1%	1
39	AS49544 AS3356 AS6762 AS21859	2	<1%	1
40	AS47147 AS3320 AS3257 AS21859	2	<1%	2
41	AS48362 AS1764 AS174 AS21859	2	<1%	2
42	AS8218 AS6461 AS3257 AS21859	2	<1%	2
43	AS12859 AS1299 AS174 AS21859	2	<1%	1
44	AS47147 AS1299 AS174 AS21859	2	<1%	2
45	AS42473 AS1299 AS174 AS21859	2	<1%	2
46	AS917 AS60068 AS174 AS21859	2	<1%	2
47	AS20612 AS9044 AS174 AS21859	2	<1%	1
48	AS206271 AS60707 AS12735 AS6762 AS21859	2	<1%	1
49	AS142289 AS9583 AS2914 AS6762 AS21859	2	<1%	1
50	AS51185 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, 14:34 UTC, fetched just now.