BGP map for 72.252.4.0/22

72.252.4.0/22 is announced by AS23520 Columbus Networks USA, Inc. and seen by 329 peers of 23 RIPE RIS collectors, over 260 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (30%), AS6830 LibertyGlobal (24%) and AS174 Cogent Communications, LLC (22%). The most common path, used by 7 peers, is AS8218 AS6830 AS23520.

Routes checked 23:54:51 UTC

No change in the origin, the upstreams or the number of peers since 23:54 UTC, when this site first looked at 72.252.4.0/22.

AS-path graph toward 72.252.4.0/22

origin Tier 1Tier 2edge network prefix best path: chosen by 7 of 329 peers (2%) number on a line = peers using that link RIS data up to 23:54 UTC what the colours mean 12 of 260 paths drawn 6 quieter networks left out

Download PNG View JSON Raw upstream

329collector peers

23RIS collectors

260distinct 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	99	30%
AS6830 LibertyGlobal Liberty Global Europe Holding B.V.	79	24%
AS174 Cogent Communications, LLC	71	22%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	42	13%
AS3257 GTT-BACKBONE GTT Communications Inc.	25	8%
AS3303 SWISSCOM Swisscom (Schweiz) AG	7	2%
AS60068 CDN77 Datacamp Limited	4	1%
AS199524 GCORE G-Core Labs S.A.	1	<1%
AS286 KPN GTT Communications Inc.	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	97	29%
AS6830 LibertyGlobal Liberty Global Europe Holding B.V.	77	23%
AS174 Cogent Communications, LLC	71	22%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	40	12%
AS3257 GTT-BACKBONE GTT Communications Inc.	24	7%
AS2914 NTT America, Inc.	22	7%
AS3356 Level 3 Parent, LLC	9	3%
AS3303 SWISSCOM Swisscom (Schweiz) AG	7	2%
AS60068 CDN77 Datacamp Limited	4	1%
AS34549 MEER-AS meerfarbig GmbH & Co. KG	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	AS8218 AS6830 AS23520	7	2%	6
2	AS199524 AS1299 AS23520	6	2%	6
3	AS24482 AS2914 AS6830 AS23520	5	2%	5
4	AS13030 AS1299 AS23520	4	1%	4
5	AS12779 AS3257 AS23520	4	1%	4
6	AS47147 AS6830 AS23520	4	1%	4
7	AS24482 AS2914 AS6762 AS23520	4	1%	4
8	AS48185 AS1299 AS23520	3	<1%	3
9	AS14840 AS6762 AS23520	3	<1%	2
10	AS51185 AS6762 AS23520	3	<1%	3
11	AS9002 AS3257 AS23520	3	<1%	3
12	AS25091 AS6830 AS23520	3	<1%	3
13	AS48362 AS1299 AS23520	3	<1%	3
14	AS6830 AS23520	2	<1%	2
15	AS1299 AS23520	2	<1%	2
16	AS6762 AS23520	2	<1%	2
17	AS917 AS60068 AS23520	2	<1%	2
18	AS3320 AS6830 AS23520	2	<1%	2
19	AS2914 AS6830 AS23520	2	<1%	2
20	AS62167 AS174 AS23520	2	<1%	2
21	AS25160 AS174 AS23520	2	<1%	2
22	AS42473 AS1299 AS23520	2	<1%	2
23	AS34927 AS1299 AS23520	2	<1%	2
24	AS34927 AS6830 AS23520	2	<1%	2
25	AS14907 AS1299 AS23520	2	<1%	2
26	AS31027 AS1299 AS23520	2	<1%	1
27	AS3491 AS174 AS23520	2	<1%	2
28	AS34019 AS6830 AS23520	2	<1%	2
29	AS15547 AS174 AS23520	2	<1%	2
30	AS6461 AS174 AS23520	2	<1%	2
31	AS49544 AS6830 AS23520	2	<1%	2
32	AS199524 AS174 AS23520	2	<1%	2
33	AS59890 AS60068 AS23520	2	<1%	2
34	AS271253 AS174 AS23520	2	<1%	1
35	AS35280 AS1299 AS23520	2	<1%	2
36	AS19151 AS174 AS23520	2	<1%	2
37	AS58057 AS34549 AS1299 AS23520	2	<1%	2
38	AS49544 AS3356 AS1299 AS23520	2	<1%	1
39	AS35710 AS3320 AS6830 AS23520	2	<1%	2
40	AS51184 AS1764 AS174 AS23520	2	<1%	2
41	AS47692 AS2914 AS6830 AS23520	2	<1%	2
42	AS24482 AS2914 AS1299 AS23520	2	<1%	2
43	AS142289 AS9583 AS4755 AS6453 AS174 AS23520	2	<1%	1
44	AS3257 AS23520	1	<1%	1
45	AS199524 AS23520	1	<1%	1
46	AS36924 AS1299 AS23520	1	<1%	1
47	AS6894 AS174 AS23520	1	<1%	1
48	AS31742 AS1299 AS23520	1	<1%	1
49	AS35266 AS3257 AS23520	1	<1%	1
50	AS286 AS3257 AS23520	1	<1%	1

50 of 260 paths shown. All of them are in the JSON.

More prefixes from AS23520

Routes seen by RIPE RIS in the 24 hours up to 15 Sep 2026, 23:54 UTC, fetched just now.