BGP map for 178.133.0.0/17

178.133.0.0/17 is announced by AS21497 UMC-AS and seen by 335 peers of 23 RIPE RIS collectors, over 259 different AS paths. Its busiest upstreams are AS2914 NTT America, Inc. (42%), AS6939 Hurricane Electric LLC (4%) and AS24482 SG.GS (3%). The most common path, used by 11 peers, is AS24482 AS21497.

Routes checked 03:40:39 UTC

No change in the origin, the upstreams or the number of peers since 03:40 UTC, when this site first looked at 178.133.0.0/17.

AS-path graph toward 178.133.0.0/17

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 335 peers (3%) number on a line = peers using that link RIS data up to 03:40 UTC what the colours mean 12 of 259 paths drawn 5 quieter networks left out

Download PNG View JSON Raw upstream

335collector peers

23RIS collectors

259distinct AS paths

3.0average AS hops, 1 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS2914 NTT America, Inc.	142	42%
AS6939 Hurricane Electric LLC	15	4%
AS24482 SG.GS	11	3%
AS6461 Zayo Bandwidth	10	3%
AS8218 NEO-ASN Zayo Infrastructure France SA	7	2%
AS25091 IP-Max IP-Max SA	6	2%
AS5405 INTERDOTLINK Inter.link GmbH	6	2%
AS35280 F5 F5 Networks SARL	6	2%
AS12779 ITGATE IT.Gate S.p.A.	5	1%
AS14840 BR.Digital Telecom	5	1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS2914 NTT America, Inc.	139	41%
AS1299 TWELVE99 Arelion Sweden AB	21	6%
AS6939 Hurricane Electric LLC	15	4%
AS174 Cogent Communications, LLC	14	4%
AS3356 Level 3 Parent, LLC	11	3%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	6	2%
AS34549 MEER-AS meerfarbig GmbH & Co. KG	5	1%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	5	1%
AS35280 F5 F5 Networks SARL	5	1%
AS6461 Zayo Bandwidth	5	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	AS24482 AS21497	11	3%	11
2	AS8218 AS21497	7	2%	6
3	AS6461 AS21497	5	1%	5
4	AS12779 AS21497	4	1%	4
5	AS14840 AS21497	4	1%	2
6	AS47147 AS21497	4	1%	4
7	AS13030 AS2914 AS21497	4	1%	4
8	AS9002 AS2914 AS21497	4	1%	4
9	AS2914 AS21497	3	<1%	3
10	AS48185 AS21497	3	<1%	3
11	AS34019 AS21497	3	<1%	3
12	AS25091 AS21497	3	<1%	3
13	AS48362 AS21497	3	<1%	3
14	AS3491 AS2914 AS21497	3	<1%	3
15	AS199524 AS1299 AS2914 AS21497	3	<1%	3
16	AS25160 AS21497	2	<1%	2
17	AS212483 AS21497	2	<1%	1
18	AS49544 AS21497	2	<1%	2
19	AS15547 AS21497	2	<1%	2
20	AS51184 AS21497	2	<1%	2
21	AS3257 AS2914 AS21497	2	<1%	2
22	AS6830 AS2914 AS21497	2	<1%	2
23	AS3320 AS2914 AS21497	2	<1%	2
24	AS1299 AS2914 AS21497	2	<1%	2
25	AS31027 AS6797 AS21497	2	<1%	1
26	AS49544 AS2914 AS21497	2	<1%	2
27	AS8529 AS6939 AS21497	2	<1%	2
28	AS199524 AS2914 AS21497	2	<1%	2
29	AS35280 AS2914 AS21497	2	<1%	2
30	AS6762 AS2914 AS21497	2	<1%	2
31	AS47692 AS2914 AS21497	2	<1%	2
32	AS59890 AS6939 AS21497	2	<1%	2
33	AS20612 AS9044 AS21497	2	<1%	1
34	AS2497 AS2914 AS21497	2	<1%	2
35	AS19151 AS2914 AS21497	2	<1%	2
36	AS34927 AS1299 AS2914 AS21497	2	<1%	2
37	AS58057 AS34549 AS2914 AS21497	2	<1%	2
38	AS49544 AS3356 AS2914 AS21497	2	<1%	1
39	AS35710 AS3320 AS2914 AS21497	2	<1%	2
40	AS51185 AS6762 AS2914 AS21497	2	<1%	2
41	AS271253 AS3356 AS2914 AS21497	2	<1%	1
42	AS142289 AS9583 AS6453 AS2914 AS21497	2	<1%	1
43	AS21497	1	<1%	1
44	AS1828 AS21497	1	<1%	1
45	AS39122 AS21497	1	<1%	1
46	AS12969 AS21497	1	<1%	1
47	AS14630 AS21497	1	<1%	1
48	AS271253 AS21497	1	<1%	1
49	AS37721 AS21497	1	<1%	1
50	AS50300 AS21497	1	<1%	1

50 of 259 paths shown. All of them are in the JSON.

More prefixes from AS21497

Routes seen by RIPE RIS in the 24 hours up to 17 Sep 2026, 03:40 UTC, fetched just now.