BGP map for 178.136.236.0/23

178.136.236.0/23 is announced by AS21497 UMC-AS and seen by 331 peers of 23 RIPE RIS collectors, over 262 different AS paths. Its busiest upstreams are AS3257 GTT-BACKBONE (12%), AS1273 IDDQD-AS (12%) and AS2914 NTT America, Inc. (11%). The most common path, used by 9 peers, is AS24482 AS21497.

Routes checked 21:57:18 UTC

No change in the origin, the upstreams or the number of peers since 23:04 UTC on 29 Oct, when this site first looked at 178.136.236.0/23.

AS-path graph toward 178.136.236.0/23

origin Tier 1Tier 2edge network prefix best path: chosen by 9 of 331 peers (3%) number on a line = peers using that link RIS data up to 21:56 UTC what the colours mean 12 of 262 paths drawn 7 quieter networks left out

View JSON Raw upstream

331collector peers

23RIS collectors

262distinct AS paths

2.8average AS hops, 1 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS3257 GTT-BACKBONE GTT Communications Inc.	41	12%
AS1273 IDDQD-AS	40	12%
AS2914 NTT America, Inc.	38	11%
AS6939 Hurricane Electric LLC	12	4%
AS24482 SG.GS	9	3%
AS8218 NEO-ASN Zayo Infrastructure France SA	8	2%
AS6461 Zayo Bandwidth	8	2%
AS14840 BR.Digital Telecom	5	2%
AS47147 AS-ANX Anexia Cloud Solutions GmbH	4	1%
AS12779 ITGATE IT.Gate S.p.A.	4	1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1273 IDDQD-AS	40	12%
AS3257 GTT-BACKBONE GTT Communications Inc.	40	12%
AS2914 NTT America, Inc.	35	11%
AS6939 Hurricane Electric LLC	12	4%
AS1299 TWELVE99 Arelion Sweden AB	10	3%
AS3356 Level 3 Parent, LLC	7	2%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	5	2%
AS174 Cogent Communications, LLC	5	2%
AS50263 IXP-1-IX-EU A-Systems Sp. z o.o.	4	1%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	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	AS24482 AS21497	9	3%	9
2	AS8218 AS21497	7	2%	6
3	AS6461 AS21497	5	2%	5
4	AS14840 AS21497	4	1%	2
5	AS47147 AS21497	4	1%	4
6	AS13030 AS1273 AS21497	4	1%	4
7	AS2914 AS21497	3	<1%	3
8	AS12779 AS21497	3	<1%	3
9	AS48185 AS21497	3	<1%	3
10	AS34019 AS21497	3	<1%	3
11	AS25091 AS21497	3	<1%	3
12	AS48362 AS21497	3	<1%	3
13	AS9002 AS3257 AS21497	3	<1%	3
14	AS199524 AS3257 AS21497	3	<1%	3
15	AS21497	2	<1%	2
16	AS25160 AS21497	2	<1%	2
17	AS35710 AS21497	2	<1%	2
18	AS8529 AS21497	2	<1%	2
19	AS3214 AS21497	2	<1%	2
20	AS212483 AS21497	2	<1%	1
21	AS49544 AS21497	2	<1%	2
22	AS199524 AS21497	2	<1%	2
23	AS15547 AS21497	2	<1%	2
24	AS51184 AS21497	2	<1%	2
25	AS47692 AS21497	2	<1%	2
26	AS3491 AS3257 AS21497	2	<1%	2
27	AS62167 AS3257 AS21497	2	<1%	2
28	AS1299 AS1273 AS21497	2	<1%	2
29	AS58057 AS1836 AS21497	2	<1%	2
30	AS49544 AS2914 AS21497	2	<1%	2
31	AS6762 AS2914 AS21497	2	<1%	2
32	AS59890 AS6939 AS21497	2	<1%	2
33	AS20612 AS9044 AS21497	2	<1%	1
34	AS2497 AS1273 AS21497	2	<1%	2
35	AS19151 AS2914 AS21497	2	<1%	2
36	AS34927 AS1299 AS1273 AS21497	2	<1%	2
37	AS49544 AS3356 AS3257 AS21497	2	<1%	1
38	AS51185 AS6762 AS2914 AS21497	2	<1%	2
39	AS271253 AS3356 AS3257 AS21497	2	<1%	1
40	AS142289 AS9583 AS6453 AS1273 AS21497	2	<1%	1
41	AS1828 AS21497	1	<1%	1
42	AS39122 AS21497	1	<1%	1
43	AS12969 AS21497	1	<1%	1
44	AS14630 AS21497	1	<1%	1
45	AS271253 AS21497	1	<1%	1
46	AS34549 AS21497	1	<1%	1
47	AS37721 AS21497	1	<1%	1
48	AS50300 AS21497	1	<1%	1
49	AS3333 AS21497	1	<1%	1
50	AS6057 AS21497	1	<1%	1

50 of 262 paths shown. All of them are in the JSON.

More prefixes from AS21497

Routes seen by RIPE RIS in the 24 hours up to 1 Nov 2026, 21:56 UTC, fetched just now.