BGP map for 37.153.160.0/21

37.153.160.0/21 is announced by AS3329 HOL-GR and seen by 326 peers of 23 RIPE RIS collectors, over 256 different AS paths. Its busiest upstreams are AS1273 IDDQD-AS (99%), AS197580 AS-CONNECTICORE (<1%) and AS56457 FASTPATH (<1%). The most common path, used by 11 peers, is AS24482 AS2914 AS1273 AS3329.

Routes checked 08:47:20 UTC

No change in the origin, the upstreams or the number of peers since 08:47 UTC, when this site first looked at 37.153.160.0/21.

AS-path graph toward 37.153.160.0/21

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 326 peers (3%) number on a line = peers using that link RIS data up to 08:46 UTC what the colours mean 12 of 256 paths drawn 6 quieter networks left out

Download PNG View JSON Raw upstream

326collector peers

23RIS collectors

256distinct AS paths

4.0average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS1273 IDDQD-AS	322	99%
AS197580 AS-CONNECTICORE Connecticore Telecommunications Information Technology S.A	1	<1%
AS56457 FASTPATH FASTPATH IKE	1	<1%
AS51185 MAINSTREAMING-AS MainStreaming SpA	1	<1%
AS8280 SYNAPSECOM-AS SYNAPSECOM S.A. Provider of Telecommunications and Internet Services	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1273 IDDQD-AS	322	99%
AS1299 TWELVE99 Arelion Sweden AB	65	20%
AS2914 NTT America, Inc.	30	9%
AS3356 Level 3 Parent, LLC	29	9%
AS174 Cogent Communications, LLC	28	9%
AS3257 GTT-BACKBONE GTT Communications Inc.	13	4%
AS6939 Hurricane Electric LLC	11	3%
AS9002 RETN-AS RETN Limited	10	3%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	8	2%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	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 AS1273 AS3329	11	3%	11
2	AS8218 AS1273 AS3329	7	2%	6
3	AS199524 AS1299 AS1273 AS3329	7	2%	7
4	AS6461 AS1273 AS3329	5	2%	5
5	AS13030 AS1273 AS3329	4	1%	4
6	AS9002 AS1273 AS3329	4	1%	4
7	AS3491 AS1273 AS3329	3	<1%	3
8	AS34019 AS1273 AS3329	3	<1%	3
9	AS25091 AS1273 AS3329	3	<1%	3
10	AS12779 AS3257 AS1273 AS3329	3	<1%	3
11	AS34927 AS1299 AS1273 AS3329	3	<1%	3
12	AS49544 AS3356 AS1273 AS3329	3	<1%	2
13	AS14840 AS3356 AS1273 AS3329	3	<1%	2
14	AS3257 AS1273 AS3329	2	<1%	2
15	AS6830 AS1273 AS3329	2	<1%	2
16	AS3320 AS1273 AS3329	2	<1%	2
17	AS2914 AS1273 AS3329	2	<1%	2
18	AS1299 AS1273 AS3329	2	<1%	2
19	AS6762 AS1273 AS3329	2	<1%	2
20	AS49544 AS1273 AS3329	2	<1%	2
21	AS2497 AS1273 AS3329	2	<1%	2
22	AS25160 AS2914 AS1273 AS3329	2	<1%	2
23	AS31027 AS1299 AS1273 AS3329	2	<1%	1
24	AS35710 AS3320 AS1273 AS3329	2	<1%	2
25	AS14907 AS1299 AS1273 AS3329	2	<1%	2
26	AS15547 AS174 AS1273 AS3329	2	<1%	2
27	AS48362 AS9002 AS1273 AS3329	2	<1%	2
28	AS47692 AS33891 AS1273 AS3329	2	<1%	2
29	AS51185 AS6762 AS1273 AS3329	2	<1%	2
30	AS47147 AS1299 AS1273 AS3329	2	<1%	2
31	AS59890 AS3356 AS1273 AS3329	2	<1%	2
32	AS271253 AS3356 AS1273 AS3329	2	<1%	1
33	AS19151 AS174 AS1273 AS3329	2	<1%	2
34	AS58057 AS34549 AS2914 AS1273 AS3329	2	<1%	2
35	AS51184 AS47692 AS33891 AS1273 AS3329	2	<1%	2
36	AS20612 AS8758 AS3303 AS1273 AS3329	2	<1%	1
37	AS142289 AS9583 AS4755 AS6453 AS1273 AS3329	2	<1%	1
38	AS197580 AS3329	1	<1%	1
39	AS56457 AS3329	1	<1%	1
40	AS51185 AS3329	1	<1%	1
41	AS216285 AS8280 AS3329	1	<1%	1
42	AS37721 AS1273 AS3329	1	<1%	1
43	AS3333 AS1273 AS3329	1	<1%	1
44	AS1257 AS1273 AS3329	1	<1%	1
45	AS49028 AS1273 AS3329	1	<1%	1
46	AS29075 AS1273 AS3329	1	<1%	1
47	AS50628 AS1273 AS3329	1	<1%	1
48	AS56987 AS1273 AS3329	1	<1%	1
49	AS12956 AS1273 AS3329	1	<1%	1
50	AS6453 AS1273 AS3329	1	<1%	1

50 of 256 paths shown. All of them are in the JSON.

More prefixes from AS3329

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 08:46 UTC, fetched just now.