BGP map for 128.9.192.0/18

128.9.192.0/18 is announced by AS4 University of Southern California and seen by 330 peers of 23 RIPE RIS collectors, over 252 different AS paths. Its busiest upstreams are AS226 Los Nettos (77%) and AS567 Los Nettos (23%). The most common path, used by 11 peers, is AS24482 AS2914 AS226 AS4.

Routes checked 12:26:20 UTC

No change in the origin, the upstreams or the number of peers since 17:05 UTC on 25 Oct, when this site first looked at 128.9.192.0/18.

AS-path graph toward 128.9.192.0/18

origin Tier 1Tier 2transitedge network prefix best path: chosen by 11 of 330 peers (3%) number on a line = peers using that link RIS data up to 09:59 UTC what the colours mean 12 of 252 paths drawn 4 quieter networks left out

View JSON Raw upstream

330collector peers

23RIS collectors

252distinct AS paths

5.0average AS hops, 3 to 7

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS226 Los Nettos	254	77%
AS567 Los Nettos	76	23%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS226 Los Nettos	254	77%
AS2914 NTT America, Inc.	251	76%
AS2152 CENIC	76	23%
AS567 Los Nettos	76	23%
AS3356 Level 3 Parent, LLC	58	18%
AS1299 TWELVE99 Arelion Sweden AB	21	6%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	18	5%
AS3320 DTAG Deutsche Telekom AG	14	4%
AS9002 RETN-AS RETN Limited	14	4%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	14	4%

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 AS226 AS4	11	3%	11
2	AS8218 AS6461 AS2914 AS226 AS4	7	2%	6
3	AS6461 AS2914 AS226 AS4	5	2%	5
4	AS9002 AS2914 AS226 AS4	4	1%	4
5	AS12779 AS2914 AS226 AS4	4	1%	4
6	AS47147 AS3320 AS2914 AS226 AS4	4	1%	4
7	AS14840 AS3356 AS2152 AS567 AS4	4	1%	2
8	AS13030 AS1299 AS3356 AS2152 AS567 AS4	4	1%	4
9	AS2914 AS226 AS4	3	<1%	3
10	AS48185 AS2914 AS226 AS4	3	<1%	3
11	AS3491 AS2914 AS226 AS4	3	<1%	3
12	AS199524 AS2914 AS226 AS4	3	<1%	3
13	AS25091 AS2914 AS226 AS4	3	<1%	3
14	AS35280 AS2914 AS226 AS4	3	<1%	3
15	AS48362 AS1764 AS2914 AS226 AS4	3	<1%	3
16	AS51185 AS6762 AS2914 AS226 AS4	3	<1%	3
17	AS55720 AS2914 AS226 AS4	2	<1%	1
18	AS3320 AS2914 AS226 AS4	2	<1%	2
19	AS6830 AS2914 AS226 AS4	2	<1%	2
20	AS25160 AS2914 AS226 AS4	2	<1%	2
21	AS49544 AS2152 AS567 AS4	2	<1%	2
22	AS47692 AS2914 AS226 AS4	2	<1%	2
23	AS2497 AS2914 AS226 AS4	2	<1%	2
24	AS19151 AS2152 AS567 AS4	2	<1%	2
25	AS11164 AS2152 AS567 AS4	2	<1%	2
26	AS6762 AS2914 AS226 AS4	2	<1%	2
27	AS49544 AS2914 AS226 AS4	2	<1%	2
28	AS58057 AS34549 AS2914 AS226 AS4	2	<1%	2
29	AS3257 AS3356 AS2152 AS567 AS4	2	<1%	2
30	AS42473 AS9002 AS2914 AS226 AS4	2	<1%	2
31	AS1299 AS3356 AS2152 AS567 AS4	2	<1%	2
32	AS34019 AS25091 AS2914 AS226 AS4	2	<1%	2
33	AS8529 AS6453 AS2914 AS226 AS4	2	<1%	2
34	AS15547 AS3303 AS2914 AS226 AS4	2	<1%	2
35	AS51184 AS47692 AS2914 AS226 AS4	2	<1%	2
36	AS59890 AS60068 AS2914 AS226 AS4	2	<1%	2
37	AS35710 AS3320 AS2914 AS226 AS4	2	<1%	2
38	AS20612 AS9044 AS2914 AS226 AS4	2	<1%	1
39	AS49544 AS3356 AS2152 AS567 AS4	2	<1%	1
40	AS31027 AS3356 AS2152 AS567 AS4	2	<1%	1
41	AS58057 AS1836 AS5511 AS2914 AS226 AS4	2	<1%	2
42	AS62167 AS24785 AS6830 AS2914 AS226 AS4	2	<1%	2
43	AS142289 AS9583 AS6453 AS2914 AS226 AS4	2	<1%	1
44	AS7018 AS2914 AS226 AS4	1	<1%	1
45	AS37721 AS2914 AS226 AS4	1	<1%	1
46	AS50300 AS2914 AS226 AS4	1	<1%	1
47	AS38001 AS2914 AS226 AS4	1	<1%	1
48	AS34549 AS2914 AS226 AS4	1	<1%	1
49	AS1828 AS2152 AS567 AS4	1	<1%	1
50	AS14630 AS2914 AS226 AS4	1	<1%	1

50 of 252 paths shown. All of them are in the JSON.

More prefixes from AS4

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 09:59 UTC, fetched 1 hour ago.