BGP map for 151.101.20.0/22

151.101.20.0/22 is announced by AS54113 Fastly, Inc. and seen by 326 peers of 23 RIPE RIS collectors, over 261 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (29%), AS174 Cogent Communications, LLC (19%) and AS3356 Level 3 Parent, LLC (18%). The most common path, used by 11 peers, is AS24482 AS54113.

Routes checked 10:50:39 UTC

No change in the origin, the upstreams or the number of peers since 05:01 UTC on 27 Oct, when this site first looked at 151.101.20.0/22.

AS-path graph toward 151.101.20.0/22

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 326 peers (3%) number on a line = peers using that link RIS data up to 07:59 UTC what the colours mean 12 of 261 paths drawn 3 quieter networks left out

View JSON Raw upstream

326collector peers

23RIS collectors

261distinct AS paths

3.3average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	96	29%
AS174 Cogent Communications, LLC	62	19%
AS3356 Level 3 Parent, LLC	58	18%
AS2914 NTT America, Inc.	51	16%
AS6461 Zayo Bandwidth	17	5%
AS6939 Hurricane Electric LLC	16	5%
AS24482 SG.GS	11	3%
AS7922 Comcast Cable Communications, LLC	3	<1%
AS49544 i3Dnet i3D.net B.V	2	<1%
AS7018 AT&T Enterprises, LLC	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	94	29%
AS174 Cogent Communications, LLC	62	19%
AS3356 Level 3 Parent, LLC	58	18%
AS2914 NTT America, Inc.	48	15%
AS6939 Hurricane Electric LLC	16	5%
AS6461 Zayo Bandwidth	12	4%
AS3257 GTT-BACKBONE GTT Communications Inc.	5	2%
AS34549 MEER-AS meerfarbig GmbH & Co. KG	4	1%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	4	1%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	4	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 AS54113	11	3%	11
2	AS8218 AS6461 AS54113	7	2%	6
3	AS6461 AS54113	5	2%	5
4	AS13030 AS1299 AS54113	4	1%	4
5	AS9002 AS2914 AS54113	4	1%	4
6	AS47147 AS1299 AS54113	4	1%	4
7	AS199524 AS1299 AS54113	4	1%	4
8	AS14840 AS3356 AS54113	4	1%	2
9	AS2914 AS54113	3	<1%	3
10	AS199524 AS174 AS54113	3	<1%	3
11	AS48362 AS1299 AS54113	3	<1%	3
12	AS1299 AS54113	2	<1%	2
13	AS49544 AS54113	2	<1%	2
14	AS3257 AS3356 AS54113	2	<1%	2
15	AS25160 AS2914 AS54113	2	<1%	2
16	AS42473 AS1299 AS54113	2	<1%	2
17	AS12779 AS174 AS54113	2	<1%	2
18	AS34927 AS1299 AS54113	2	<1%	2
19	AS14907 AS1299 AS54113	2	<1%	2
20	AS15547 AS174 AS54113	2	<1%	2
21	AS47692 AS2914 AS54113	2	<1%	2
22	AS59890 AS3356 AS54113	2	<1%	2
23	AS12779 AS2914 AS54113	2	<1%	2
24	AS19151 AS2914 AS54113	2	<1%	2
25	AS271253 AS3356 AS54113	2	<1%	1
26	AS49544 AS2914 AS54113	2	<1%	2
27	AS49544 AS3356 AS54113	2	<1%	1
28	AS31027 AS1299 AS54113	2	<1%	1
29	AS58057 AS34549 AS1299 AS54113	2	<1%	2
30	AS917 AS60068 AS174 AS54113	2	<1%	2
31	AS34019 AS25091 AS2914 AS54113	2	<1%	2
32	AS51184 AS47692 AS2914 AS54113	2	<1%	2
33	AS35710 AS3320 AS3356 AS54113	2	<1%	2
34	AS20612 AS9044 AS174 AS54113	2	<1%	1
35	AS142289 AS9583 AS6453 AS1299 AS54113	2	<1%	1
36	AS7018 AS54113	1	<1%	1
37	AS852 AS54113	1	<1%	1
38	AS34927 AS54113	1	<1%	1
39	AS35280 AS54113	1	<1%	1
40	AS18106 AS54113	1	<1%	1
41	AS36236 AS54113	1	<1%	1
42	AS55720 AS6939 AS54113	1	<1%	1
43	AS61218 AS6939 AS54113	1	<1%	1
44	AS50300 AS3356 AS54113	1	<1%	1
45	AS58057 AS174 AS54113	1	<1%	1
46	AS48185 AS3356 AS54113	1	<1%	1
47	AS38001 AS2914 AS54113	1	<1%	1
48	AS17639 AS6939 AS54113	1	<1%	1
49	AS4608 AS7575 AS54113	1	<1%	1
50	AS3549 AS3356 AS54113	1	<1%	1

50 of 261 paths shown. All of them are in the JSON.

More prefixes from AS54113

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 07:59 UTC, fetched just now.