BGP map for 121.136.0.0/13

121.136.0.0/13 is announced by AS4766 Korea Telecom and seen by 327 peers of 23 RIPE RIS collectors, over 254 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (22%), AS174 Cogent Communications, LLC (20%) and AS3356 Level 3 Parent, LLC (12%). The most common path, used by 11 peers, is AS24482 AS2914 AS4766.

Routes checked 18:09:40 UTC

No change in the origin, the upstreams or the number of peers since 18:09 UTC, when this site first looked at 121.136.0.0/13.

AS-path graph toward 121.136.0.0/13

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 327 peers (3%) number on a line = peers using that link RIS data up to 18:09 UTC what the colours mean 12 of 254 paths drawn 5 quieter networks left out

Download PNG View JSON Raw upstream

327collector peers

23RIS collectors

254distinct AS paths

3.2average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	72	22%
AS174 Cogent Communications, LLC	64	20%
AS3356 Level 3 Parent, LLC	38	12%
AS9002 RETN-AS RETN Limited	21	6%
AS3257 GTT-BACKBONE GTT Communications Inc.	20	6%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	17	5%
AS2914 NTT America, Inc.	16	5%
AS6461 Zayo Bandwidth	16	5%
AS6830 LibertyGlobal Liberty Global Europe Holding B.V.	7	2%
AS33891 CORE-BACKBONE Core-Backbone GmbH	5	2%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	70	21%
AS174 Cogent Communications, LLC	64	20%
AS3356 Level 3 Parent, LLC	38	12%
AS3257 GTT-BACKBONE GTT Communications Inc.	18	6%
AS2914 NTT America, Inc.	17	5%
AS9002 RETN-AS RETN Limited	17	5%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	15	5%
AS6461 Zayo Bandwidth	11	3%
AS35625 EUROFIBER-FRANCE Eurofiber France SAS	6	2%
AS33891 CORE-BACKBONE Core-Backbone 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 AS2914 AS4766	11	3%	11
2	AS8218 AS6461 AS4766	7	2%	6
3	AS6461 AS4766	5	2%	5
4	AS9002 AS4766	4	1%	4
5	AS13030 AS1299 AS4766	4	1%	4
6	AS12779 AS174 AS4766	4	1%	4
7	AS49544 AS4766	3	<1%	3
8	AS2914 AS174 AS4766	3	<1%	3
9	AS34927 AS1299 AS4766	3	<1%	3
10	AS14840 AS3356 AS4766	3	<1%	2
11	AS51185 AS6762 AS4766	3	<1%	3
12	AS35280 AS3356 AS4766	3	<1%	3
13	AS199524 AS1299 AS4766	3	<1%	3
14	AS47147 AS1299 AS4766	3	<1%	3
15	AS199524 AS174 AS4766	3	<1%	3
16	AS34019 AS35625 AS3257 AS4766	3	<1%	3
17	AS3257 AS4766	2	<1%	2
18	AS6830 AS4766	2	<1%	2
19	AS1299 AS4766	2	<1%	2
20	AS6762 AS4766	2	<1%	2
21	AS2497 AS4766	2	<1%	2
22	AS917 AS60068 AS4766	2	<1%	2
23	AS3320 AS174 AS4766	2	<1%	2
24	AS25160 AS174 AS4766	2	<1%	2
25	AS48185 AS1299 AS4766	2	<1%	2
26	AS49544 AS3356 AS4766	2	<1%	1
27	AS31027 AS1299 AS4766	2	<1%	1
28	AS14907 AS1299 AS4766	2	<1%	2
29	AS15547 AS174 AS4766	2	<1%	2
30	AS25091 AS1299 AS4766	2	<1%	2
31	AS48362 AS9002 AS4766	2	<1%	2
32	AS47692 AS33891 AS4766	2	<1%	2
33	AS59890 AS60068 AS4766	2	<1%	2
34	AS271253 AS3356 AS4766	2	<1%	1
35	AS19151 AS174 AS4766	2	<1%	2
36	AS58057 AS34549 AS1299 AS4766	2	<1%	2
37	AS35710 AS3320 AS174 AS4766	2	<1%	2
38	AS51184 AS47692 AS33891 AS4766	2	<1%	2
39	AS20612 AS8758 AS9002 AS4766	2	<1%	1
40	AS142289 AS9583 AS4755 AS6453 AS174 AS4766	2	<1%	1
41	AS50304 AS4766	1	<1%	1
42	AS852 AS4766	1	<1%	1
43	AS45489 AS4766	1	<1%	1
44	AS36236 AS4766	1	<1%	1
45	AS8529 AS4766	1	<1%	1
46	AS3491 AS4766	1	<1%	1
47	AS14907 AS4766	1	<1%	1
48	AS8426 AS4766	1	<1%	1
49	AS8455 AS4766	1	<1%	1
50	AS39351 AS4766	1	<1%	1

50 of 254 paths shown. All of them are in the JSON.

More prefixes from AS4766

Routes seen by RIPE RIS in the 24 hours up to 15 Sep 2026, 18:09 UTC, fetched just now.