BGP map for 5.152.240.0/21

5.152.240.0/21 is announced by AS12874 FASTWEB and seen by 334 peers of 23 RIPE RIS collectors, over 258 different AS paths. Its busiest upstreams are AS3303 SWISSCOM (64%), AS9002 RETN-AS (7%) and AS6461 Zayo Bandwidth (4%). The most common path, used by 10 peers, is AS24482 AS2914 AS3303 AS12874.

Routes checked 17:47:27 UTC

No change in the origin, the upstreams or the number of peers since 14:36 UTC on 26 Oct, when this site first looked at 5.152.240.0/21.

AS-path graph toward 5.152.240.0/21

origin Tier 1Tier 2edge network prefix best path: chosen by 10 of 334 peers (3%) number on a line = peers using that link RIS data up to 17:46 UTC what the colours mean 12 of 258 paths drawn 1 quieter network left out

View JSON Raw upstream

334collector peers

23RIS collectors

258distinct AS paths

3.5average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS3303 SWISSCOM Swisscom (Schweiz) AG	215	64%
AS9002 RETN-AS RETN Limited	24	7%
AS6461 Zayo Bandwidth	12	4%
AS13030 INIT7 Init7 (Switzerland) Ltd.	10	3%
AS8218 NEO-ASN Zayo Infrastructure France SA	8	2%
AS34549 MEER-AS meerfarbig GmbH & Co. KG	5	1%
AS60068 CDN77 Datacamp Limited	4	1%
AS1764 NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	3	<1%
AS35280 F5 F5 Networks SARL	3	<1%
AS61049 EXASCALE Exascale Ltd	3	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS3303 SWISSCOM Swisscom (Schweiz) AG	211	63%
AS174 Cogent Communications, LLC	42	13%
AS2914 NTT America, Inc.	27	8%
AS3356 Level 3 Parent, LLC	21	6%
AS9002 RETN-AS RETN Limited	20	6%
AS3257 GTT-BACKBONE GTT Communications Inc.	8	2%
AS1299 TWELVE99 Arelion Sweden AB	8	2%
AS6461 Zayo Bandwidth	7	2%
AS3491 PCCW Global (HK) Ltd.	6	2%
AS13030 INIT7 Init7 (Switzerland) Ltd.	6	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 AS3303 AS12874	10	3%	10
2	AS8218 AS12874	7	2%	6
3	AS6461 AS12874	5	1%	5
4	AS3303 AS12874	4	1%	4
5	AS13030 AS12874	4	1%	4
6	AS9002 AS12874	4	1%	4
7	AS47147 AS9002 AS12874	4	1%	4
8	AS2914 AS3303 AS12874	3	<1%	3
9	AS3491 AS3303 AS12874	3	<1%	3
10	AS3214 AS3303 AS12874	3	<1%	3
11	AS34019 AS3303 AS12874	3	<1%	3
12	AS25091 AS3303 AS12874	3	<1%	3
13	AS48362 AS3303 AS12874	3	<1%	3
14	AS199524 AS3491 AS3303 AS12874	3	<1%	3
15	AS51185 AS12874	2	<1%	2
16	AS12779 AS12874	2	<1%	2
17	AS49544 AS12874	2	<1%	2
18	AS917 AS60068 AS12874	2	<1%	2
19	AS3257 AS3303 AS12874	2	<1%	2
20	AS6830 AS3303 AS12874	2	<1%	2
21	AS42473 AS9002 AS12874	2	<1%	2
22	AS58057 AS34549 AS12874	2	<1%	2
23	AS8529 AS3303 AS12874	2	<1%	2
24	AS14907 AS3303 AS12874	2	<1%	2
25	AS15547 AS3303 AS12874	2	<1%	2
26	AS6762 AS3303 AS12874	2	<1%	2
27	AS51184 AS1764 AS12874	2	<1%	2
28	AS59890 AS60068 AS12874	2	<1%	2
29	AS20612 AS9044 AS12874	2	<1%	1
30	AS2497 AS3303 AS12874	2	<1%	2
31	AS3320 AS174 AS3303 AS12874	2	<1%	2
32	AS25160 AS174 AS3303 AS12874	2	<1%	2
33	AS48185 AS3356 AS3303 AS12874	2	<1%	2
34	AS1299 AS174 AS3303 AS12874	2	<1%	2
35	AS58057 AS1836 AS3303 AS12874	2	<1%	2
36	AS49544 AS3356 AS3303 AS12874	2	<1%	1
37	AS14840 AS3356 AS3303 AS12874	2	<1%	1
38	AS14840 AS174 AS3303 AS12874	2	<1%	2
39	AS31027 AS6797 AS3303 AS12874	2	<1%	1
40	AS49544 AS2914 AS3303 AS12874	2	<1%	2
41	AS47692 AS2914 AS3303 AS12874	2	<1%	2
42	AS271253 AS3356 AS3303 AS12874	2	<1%	1
43	AS19151 AS2914 AS3303 AS12874	2	<1%	2
44	AS35710 AS3320 AS174 AS3303 AS12874	2	<1%	2
45	AS142289 AS9583 AS4755 AS6453 AS3303 AS12874	2	<1%	1
46	AS12969 AS12874	1	<1%	1
47	AS34549 AS12874	1	<1%	1
48	AS16347 AS12874	1	<1%	1
49	AS8426 AS12874	1	<1%	1
50	AS29075 AS12874	1	<1%	1

50 of 258 paths shown. All of them are in the JSON.

More prefixes from AS12874

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 17:46 UTC, fetched just now.