BGP map for 162.21.0.0/16

162.21.0.0/16 is announced by AS3303 SWISSCOM and seen by 338 peers of 23 RIPE RIS collectors, over 253 different AS paths. Its busiest upstreams are AS2914 NTT America, Inc. (11%), AS174 Cogent Communications, LLC (7%) and AS9002 RETN-AS (6%). The most common path, used by 10 peers, is AS24482 AS2914 AS3303.

Routes checked 18:52:02 UTC

No change in the origin, the upstreams or the number of peers since 18:52 UTC, when this site first looked at 162.21.0.0/16.

AS-path graph toward 162.21.0.0/16

origin Tier 1Tier 2edge network prefix best path: chosen by 10 of 338 peers (3%) number on a line = peers using that link RIS data up to 18:51 UTC what the colours mean 12 of 253 paths drawn 4 quieter networks left out

Download PNG View JSON Raw upstream

338collector peers

23RIS collectors

253distinct AS paths

2.7average AS hops, 1 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS2914 NTT America, Inc.	37	11%
AS174 Cogent Communications, LLC	23	7%
AS9002 RETN-AS RETN Limited	21	6%
AS3356 Level 3 Parent, LLC	15	4%
AS3257 GTT-BACKBONE GTT Communications Inc.	14	4%
AS12956 TELXIUS TELEFONICA GLOBAL SOLUTIONS SL	9	3%
AS6461 Zayo Bandwidth	8	2%
AS3491 PCCW Global (HK) Ltd.	8	2%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	8	2%
AS8218 NEO-ASN Zayo Infrastructure France SA	7	2%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS2914 NTT America, Inc.	34	10%
AS174 Cogent Communications, LLC	23	7%
AS9002 RETN-AS RETN Limited	17	5%
AS3356 Level 3 Parent, LLC	15	4%
AS3257 GTT-BACKBONE GTT Communications Inc.	12	4%
AS12956 TELXIUS TELEFONICA GLOBAL SOLUTIONS SL	8	2%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	7	2%
AS6939 Hurricane Electric LLC	7	2%
AS3491 PCCW Global (HK) Ltd.	5	1%
AS1299 TWELVE99 Arelion Sweden AB	5	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	AS24482 AS2914 AS3303	10	3%	10
2	AS8218 AS3303	7	2%	6
3	AS6461 AS3303	5	1%	5
4	AS13030 AS3303	4	1%	4
5	AS9002 AS3303	4	1%	4
6	AS12779 AS3303	4	1%	4
7	AS14907 AS3303	4	1%	4
8	AS14840 AS3303	4	1%	2
9	AS47147 AS9002 AS3303	4	1%	4
10	AS3303	3	<1%	3
11	AS2914 AS3303	3	<1%	3
12	AS3491 AS3303	3	<1%	3
13	AS48185 AS3303	3	<1%	3
14	AS3214 AS3303	3	<1%	3
15	AS49544 AS3303	3	<1%	3
16	AS35280 AS3303	3	<1%	3
17	AS34019 AS3303	3	<1%	3
18	AS25091 AS3303	3	<1%	3
19	AS48362 AS3303	3	<1%	3
20	AS3257 AS3303	2	<1%	2
21	AS6830 AS3303	2	<1%	2
22	AS31027 AS3303	2	<1%	1
23	AS8529 AS3303	2	<1%	2
24	AS15547 AS3303	2	<1%	2
25	AS6762 AS3303	2	<1%	2
26	AS2497 AS3303	2	<1%	2
27	AS917 AS60068 AS3303	2	<1%	2
28	AS3320 AS174 AS3303	2	<1%	2
29	AS62167 AS3356 AS3303	2	<1%	2
30	AS25160 AS174 AS3303	2	<1%	2
31	AS42473 AS9002 AS3303	2	<1%	2
32	AS1299 AS174 AS3303	2	<1%	2
33	AS58057 AS1836 AS3303	2	<1%	2
34	AS49544 AS12956 AS3303	2	<1%	1
35	AS199524 AS3491 AS3303	2	<1%	2
36	AS199524 AS3257 AS3303	2	<1%	2
37	AS199524 AS6453 AS3303	2	<1%	2
38	AS47692 AS2914 AS3303	2	<1%	2
39	AS51185 AS6762 AS3303	2	<1%	2
40	AS59890 AS60068 AS3303	2	<1%	2
41	AS20612 AS8758 AS3303	2	<1%	1
42	AS271253 AS3356 AS3303	2	<1%	1
43	AS19151 AS2914 AS3303	2	<1%	2
44	AS58057 AS34549 AS2914 AS3303	2	<1%	2
45	AS35710 AS3320 AS174 AS3303	2	<1%	2
46	AS51184 AS47692 AS2914 AS3303	2	<1%	2
47	AS142289 AS9583 AS4755 AS6453 AS3303	2	<1%	1
48	AS1828 AS3303	1	<1%	1
49	AS6424 AS3303	1	<1%	1
50	AS12969 AS3303	1	<1%	1

50 of 253 paths shown. All of them are in the JSON.

More prefixes from AS3303

Routes seen by RIPE RIS in the 24 hours up to 15 Sep 2026, 18:51 UTC, fetched just now.