BGP map for 156.235.73.0/24

156.235.73.0/24 is announced by AS23520 Columbus Networks USA, Inc. and seen by 328 peers of 23 RIPE RIS collectors, over 254 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (47%), AS174 Cogent Communications, LLC (18%) and AS6830 LibertyGlobal (16%). The most common path, used by 7 peers, is AS8218 AS6830 AS23520.

Routes checked 11:34:04 UTC

No change in the origin, the upstreams or the number of peers since 07:42 UTC on 27 Oct, when this site first looked at 156.235.73.0/24.

AS-path graph toward 156.235.73.0/24

origin Tier 1Tier 2edge network prefix best path: chosen by 7 of 328 peers (2%) number on a line = peers using that link RIS data up to 07:59 UTC what the colours mean 12 of 254 paths drawn 6 quieter networks left out

View JSON Raw upstream

328collector peers

23RIS collectors

254distinct AS paths

3.4average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	154	47%
AS174 Cogent Communications, LLC	58	18%
AS6830 LibertyGlobal Liberty Global Europe Holding B.V.	51	16%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	34	10%
AS6939 Hurricane Electric LLC	21	6%
AS3303 SWISSCOM Swisscom (Schweiz) AG	6	2%
AS60068 CDN77 Datacamp Limited	2	<1%
AS199524 GCORE G-Core Labs S.A.	1	<1%
AS64126 DOMINICAN TELECOM PRIME, DTP, S.R.L.	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	152	46%
AS174 Cogent Communications, LLC	58	18%
AS6830 LibertyGlobal Liberty Global Europe Holding B.V.	49	15%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	32	10%
AS6939 Hurricane Electric LLC	21	6%
AS2914 NTT America, Inc.	17	5%
AS3356 Level 3 Parent, LLC	8	2%
AS3303 SWISSCOM Swisscom (Schweiz) AG	6	2%
AS34549 MEER-AS meerfarbig GmbH & Co. KG	4	1%
AS1764 NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	3	<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	AS8218 AS6830 AS23520	7	2%	6
2	AS6461 AS1299 AS23520	5	2%	5
3	AS199524 AS1299 AS23520	5	2%	5
4	AS24482 AS2914 AS6762 AS23520	5	2%	5
5	AS13030 AS1299 AS23520	4	1%	4
6	AS9002 AS6830 AS23520	4	1%	4
7	AS12779 AS174 AS23520	4	1%	4
8	AS47147 AS1299 AS23520	4	1%	4
9	AS24482 AS2914 AS6830 AS23520	4	1%	4
10	AS48185 AS1299 AS23520	3	<1%	3
11	AS14907 AS1299 AS23520	3	<1%	3
12	AS25091 AS6830 AS23520	3	<1%	3
13	AS48362 AS1299 AS23520	3	<1%	3
14	AS51185 AS6762 AS23520	3	<1%	3
15	AS14840 AS6762 AS23520	3	<1%	2
16	AS6830 AS23520	2	<1%	2
17	AS1299 AS23520	2	<1%	2
18	AS6762 AS23520	2	<1%	2
19	AS34927 AS1299 AS23520	2	<1%	2
20	AS34927 AS6830 AS23520	2	<1%	2
21	AS3320 AS1299 AS23520	2	<1%	2
22	AS2914 AS6830 AS23520	2	<1%	2
23	AS3491 AS1299 AS23520	2	<1%	2
24	AS3257 AS1299 AS23520	2	<1%	2
25	AS25160 AS1299 AS23520	2	<1%	2
26	AS62167 AS174 AS23520	2	<1%	2
27	AS42473 AS1299 AS23520	2	<1%	2
28	AS917 AS60068 AS23520	2	<1%	2
29	AS49544 AS6830 AS23520	2	<1%	2
30	AS34019 AS3303 AS23520	2	<1%	2
31	AS8529 AS1299 AS23520	2	<1%	2
32	AS15547 AS174 AS23520	2	<1%	2
33	AS59890 AS6939 AS23520	2	<1%	2
34	AS2497 AS1299 AS23520	2	<1%	2
35	AS35280 AS1299 AS23520	2	<1%	2
36	AS19151 AS174 AS23520	2	<1%	2
37	AS31027 AS1299 AS23520	2	<1%	1
38	AS58057 AS34549 AS1299 AS23520	2	<1%	2
39	AS51184 AS1764 AS1299 AS23520	2	<1%	2
40	AS24482 AS2914 AS1299 AS23520	2	<1%	2
41	AS35710 AS3320 AS1299 AS23520	2	<1%	2
42	AS20612 AS9044 AS174 AS23520	2	<1%	1
43	AS49544 AS3356 AS1299 AS23520	2	<1%	1
44	AS142289 AS9583 AS4755 AS6453 AS174 AS23520	2	<1%	1
45	AS199524 AS23520	1	<1%	1
46	AS55720 AS6939 AS23520	1	<1%	1
47	AS7018 AS1299 AS23520	1	<1%	1
48	AS61218 AS6939 AS23520	1	<1%	1
49	AS852 AS1299 AS23520	1	<1%	1
50	AS37721 AS6762 AS23520	1	<1%	1

50 of 254 paths shown. All of them are in the JSON.

More prefixes from AS23520

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 07:59 UTC, fetched just now.