BGP map for 104.156.240.0/21

104.156.240.0/21 is announced by AS20473 The Constant Company, LLC and seen by 322 peers of 23 RIPE RIS collectors, over 258 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (34%), AS2914 NTT America, Inc. (21%) and AS3491 PCCW Global (HK) Ltd. (17%). The most common path, used by 9 peers, is AS24482 AS2914 AS20473.

Routes checked 17:36:05 UTC

No change in the origin, the upstreams or the number of peers since 03:12 UTC on 29 Oct, when this site first looked at 104.156.240.0/21.

AS-path graph toward 104.156.240.0/21

origin Tier 1Tier 2edge network prefix best path: chosen by 9 of 322 peers (3%) number on a line = peers using that link RIS data up to 17:35 UTC what the colours mean 12 of 258 paths drawn 5 quieter networks left out

View JSON Raw upstream

322collector peers

23RIS collectors

258distinct AS paths

3.4average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	109	34%
AS2914 NTT America, Inc.	68	21%
AS3491 PCCW Global (HK) Ltd.	55	17%
AS3257 GTT-BACKBONE GTT Communications Inc.	54	17%
AS3303 SWISSCOM Swisscom (Schweiz) AG	14	4%
AS19151 BroadbandONE, LLC	2	<1%
AS1828 Unitas Global	1	<1%
AS271253 LINK BRASIL TELECOMUNICACOES LTDA	1	<1%
AS24482 SG.GS	1	<1%
AS61573 IP TELECOM	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	107	33%
AS2914 NTT America, Inc.	65	20%
AS3257 GTT-BACKBONE GTT Communications Inc.	53	16%
AS3491 PCCW Global (HK) Ltd.	52	16%
AS3303 SWISSCOM Swisscom (Schweiz) AG	14	4%
AS3356 Level 3 Parent, LLC	13	4%
AS174 Cogent Communications, LLC	12	4%
AS6461 Zayo Bandwidth	8	2%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	6	2%
AS34549 MEER-AS meerfarbig GmbH & Co. KG	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 AS2914 AS20473	9	3%	9
2	AS13030 AS3491 AS20473	4	1%	4
3	AS47147 AS1299 AS20473	4	1%	4
4	AS8218 AS6461 AS2914 AS20473	4	1%	3
5	AS14840 AS3356 AS3491 AS20473	4	1%	2
6	AS2914 AS20473	3	<1%	3
7	AS3491 AS20473	3	<1%	3
8	AS9002 AS3257 AS20473	3	<1%	3
9	AS34927 AS1299 AS20473	3	<1%	3
10	AS199524 AS1299 AS20473	3	<1%	3
11	AS49544 AS3491 AS20473	3	<1%	3
12	AS35280 AS2914 AS20473	3	<1%	3
13	AS34019 AS3303 AS20473	3	<1%	3
14	AS48362 AS1299 AS20473	3	<1%	3
15	AS8218 AS6461 AS3491 AS20473	3	<1%	3
16	AS1299 AS20473	2	<1%	2
17	AS19151 AS20473	2	<1%	2
18	AS6461 AS2914 AS20473	2	<1%	2
19	AS62167 AS3257 AS20473	2	<1%	2
20	AS25160 AS2914 AS20473	2	<1%	2
21	AS42473 AS1299 AS20473	2	<1%	2
22	AS55720 AS2914 AS20473	2	<1%	1
23	AS48185 AS2914 AS20473	2	<1%	2
24	AS14907 AS1299 AS20473	2	<1%	2
25	AS31027 AS1299 AS20473	2	<1%	1
26	AS8529 AS1299 AS20473	2	<1%	2
27	AS15547 AS3303 AS20473	2	<1%	2
28	AS12779 AS3257 AS20473	2	<1%	2
29	AS6461 AS3491 AS20473	2	<1%	2
30	AS47692 AS2914 AS20473	2	<1%	2
31	AS58057 AS1836 AS1299 AS20473	2	<1%	2
32	AS58057 AS34549 AS3257 AS20473	2	<1%	2
33	AS49544 AS3356 AS3491 AS20473	2	<1%	1
34	AS35710 AS3320 AS3257 AS20473	2	<1%	2
35	AS51184 AS47692 AS2914 AS20473	2	<1%	2
36	AS59890 AS60068 AS1299 AS20473	2	<1%	2
37	AS20612 AS8758 AS3303 AS20473	2	<1%	1
38	AS271253 AS3356 AS3491 AS20473	2	<1%	1
39	AS142289 AS9583 AS6453 AS1299 AS20473	2	<1%	1
40	AS1828 AS20473	1	<1%	1
41	AS271253 AS20473	1	<1%	1
42	AS24482 AS20473	1	<1%	1
43	AS61573 AS20473	1	<1%	1
44	AS36236 AS20473	1	<1%	1
45	AS3257 AS20473	1	<1%	1
46	AS13786 AS20473	1	<1%	1
47	AS263237 AS20473	1	<1%	1
48	AS20080 AS20473	1	<1%	1
49	AS52320 AS20473	1	<1%	1
50	AS199524 AS20473	1	<1%	1

50 of 258 paths shown. All of them are in the JSON.

More prefixes from AS20473

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 17:35 UTC, fetched just now.