BGP map for 173.237.144.0/21

173.237.144.0/21 is announced by AS17378 TierPoint, LLC and seen by 329 peers of 23 RIPE RIS collectors, over 263 different AS paths. Its busiest upstreams are AS6461 Zayo Bandwidth (44%), AS3356 Level 3 Parent, LLC (29%) and AS3257 GTT-BACKBONE (15%). The most common path, used by 10 peers, is AS24482 AS6461 AS17378.

Routes checked 19:19:43 UTC

No change in the origin, the upstreams or the number of peers since 19:19 UTC, when this site first looked at 173.237.144.0/21.

AS-path graph toward 173.237.144.0/21

origin Tier 1Tier 2edge network prefix best path: chosen by 10 of 329 peers (3%) number on a line = peers using that link RIS data up to 19:19 UTC what the colours mean 12 of 263 paths drawn 5 quieter networks left out

View JSON Raw upstream

329collector peers

23RIS collectors

263distinct AS paths

3.5average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS6461 Zayo Bandwidth	146	44%
AS3356 Level 3 Parent, LLC	95	29%
AS3257 GTT-BACKBONE GTT Communications Inc.	50	15%
AS6939 Hurricane Electric LLC	19	6%
AS25091 IP-Max IP-Max SA	8	2%
AS49544 i3Dnet i3D.net B.V	2	<1%
AS137409 GSL Networks Pty LTD	2	<1%
AS1828 Unitas Global	1	<1%
AS14907 Wikimedia Foundation Inc.	1	<1%
AS209823 ENKI-AS Enki Multimedia EURL	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS6461 Zayo Bandwidth	141	43%
AS3356 Level 3 Parent, LLC	95	29%
AS3257 GTT-BACKBONE GTT Communications Inc.	49	15%
AS1299 TWELVE99 Arelion Sweden AB	20	6%
AS6939 Hurricane Electric LLC	19	6%
AS2914 NTT America, Inc.	11	3%
AS174 Cogent Communications, LLC	11	3%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	7	2%
AS25091 IP-Max IP-Max SA	5	2%
AS1764 NEXTLAYER-AS Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	5	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 AS6461 AS17378	10	3%	10
2	AS8218 AS6461 AS17378	7	2%	6
3	AS6461 AS17378	5	2%	5
4	AS199524 AS3257 AS17378	5	2%	5
5	AS13030 AS6461 AS17378	4	1%	4
6	AS14840 AS3356 AS17378	4	1%	2
7	AS47147 AS6461 AS17378	4	1%	4
8	AS25091 AS17378	3	<1%	3
9	AS48185 AS6461 AS17378	3	<1%	3
10	AS3214 AS6461 AS17378	3	<1%	3
11	AS49544 AS3356 AS17378	3	<1%	2
12	AS9002 AS3257 AS17378	3	<1%	3
13	AS49544 AS17378	2	<1%	2
14	AS6830 AS6461 AS17378	2	<1%	2
15	AS3320 AS6461 AS17378	2	<1%	2
16	AS62167 AS3356 AS17378	2	<1%	2
17	AS50628 AS3356 AS17378	2	<1%	2
18	AS35280 AS3356 AS17378	2	<1%	2
19	AS15547 AS6461 AS17378	2	<1%	2
20	AS12779 AS6461 AS17378	2	<1%	2
21	AS2914 AS6461 AS17378	2	<1%	2
22	AS34019 AS25091 AS17378	2	<1%	2
23	AS59890 AS3356 AS17378	2	<1%	2
24	AS271253 AS3356 AS17378	2	<1%	1
25	AS25160 AS2914 AS6461 AS17378	2	<1%	2
26	AS58057 AS1836 AS3356 AS17378	2	<1%	2
27	AS34927 AS1299 AS3356 AS17378	2	<1%	2
28	AS58057 AS34549 AS6461 AS17378	2	<1%	2
29	AS31027 AS6797 AS6461 AS17378	2	<1%	1
30	AS35710 AS3320 AS3257 AS17378	2	<1%	2
31	AS51185 AS6762 AS6461 AS17378	2	<1%	2
32	AS14907 AS2914 AS3356 AS17378	2	<1%	2
33	AS51184 AS1764 AS6461 AS17378	2	<1%	2
34	AS48362 AS1764 AS6461 AS17378	2	<1%	2
35	AS20612 AS8758 AS6461 AS17378	2	<1%	1
36	AS142289 AS9583 AS4755 AS6453 AS3356 AS17378	2	<1%	1
37	AS1828 AS17378	1	<1%	1
38	AS14907 AS17378	1	<1%	1
39	AS3257 AS17378	1	<1%	1
40	AS209823 AS17378	1	<1%	1
41	AS35280 AS17378	1	<1%	1
42	AS6894 AS3257 AS17378	1	<1%	1
43	AS35266 AS3257 AS17378	1	<1%	1
44	AS286 AS3257 AS17378	1	<1%	1
45	AS2914 AS3356 AS17378	1	<1%	1
46	AS3491 AS6461 AS17378	1	<1%	1
47	AS9002 AS6461 AS17378	1	<1%	1
48	AS42473 AS6461 AS17378	1	<1%	1
49	AS1299 AS6461 AS17378	1	<1%	1
50	AS3170 AS6461 AS17378	1	<1%	1

50 of 263 paths shown. All of them are in the JSON.

More prefixes from AS17378

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 19:19 UTC, fetched just now.