BGP map for 132.244.72.0/21

132.244.72.0/21 is announced by AS5400 BT and seen by 330 peers of 23 RIPE RIS collectors, over 260 different AS paths. Its busiest upstreams are AS1299 TWELVE99 (20%), AS3356 Level 3 Parent, LLC (15%) and AS174 Cogent Communications, LLC (7%). The most common path, used by 8 peers, is AS24482 AS2914 AS3356 AS5400.

Routes checked 21:20:53 UTC

No change in the origin, the upstreams or the number of peers since 21:20 UTC, when this site first looked at 132.244.72.0/21.

AS-path graph toward 132.244.72.0/21

origin Tier 1Tier 2edge network prefix best path: chosen by 8 of 330 peers (2%) number on a line = peers using that link RIS data up to 21:20 UTC what the colours mean 12 of 260 paths drawn 4 quieter networks left out

Download PNG View JSON Raw upstream

330collector peers

23RIS collectors

260distinct AS paths

3.0average AS hops, 1 to 5

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	67	20%
AS3356 Level 3 Parent, LLC	48	15%
AS174 Cogent Communications, LLC	24	7%
AS3257 GTT-BACKBONE GTT Communications Inc.	18	5%
AS9002 RETN-AS RETN Limited	17	5%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	12	4%
AS6939 Hurricane Electric LLC	11	3%
AS13030 INIT7 Init7 (Switzerland) Ltd.	10	3%
AS8218 NEO-ASN Zayo Infrastructure France SA	8	2%
AS3491 PCCW Global (HK) Ltd.	8	2%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS1299 TWELVE99 Arelion Sweden AB	65	20%
AS3356 Level 3 Parent, LLC	48	15%
AS174 Cogent Communications, LLC	24	7%
AS3257 GTT-BACKBONE GTT Communications Inc.	16	5%
AS2914 NTT America, Inc.	15	5%
AS9002 RETN-AS RETN Limited	13	4%
AS6939 Hurricane Electric LLC	11	3%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	10	3%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	7	2%
AS3303 SWISSCOM Swisscom (Schweiz) AG	6	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 AS3356 AS5400	8	2%	8
2	AS8218 AS5400	7	2%	6
3	AS6461 AS5400	5	2%	5
4	AS13030 AS5400	4	1%	4
5	AS9002 AS5400	4	1%	4
6	AS199524 AS5400	4	1%	4
7	AS12779 AS3257 AS5400	4	1%	4
8	AS3491 AS5400	3	<1%	3
9	AS2914 AS3356 AS5400	3	<1%	3
10	AS34927 AS1299 AS5400	3	<1%	3
11	AS49544 AS3356 AS5400	3	<1%	2
12	AS14840 AS3356 AS5400	3	<1%	2
13	AS51185 AS6762 AS5400	3	<1%	3
14	AS199524 AS1299 AS5400	3	<1%	3
15	AS34019 AS3303 AS5400	3	<1%	3
16	AS3257 AS5400	2	<1%	2
17	AS6830 AS5400	2	<1%	2
18	AS3320 AS5400	2	<1%	2
19	AS1299 AS5400	2	<1%	2
20	AS31027 AS5400	2	<1%	1
21	AS6762 AS5400	2	<1%	2
22	AS49544 AS5400	2	<1%	2
23	AS35280 AS5400	2	<1%	2
24	AS2497 AS5400	2	<1%	2
25	AS19151 AS5400	2	<1%	2
26	AS917 AS60068 AS5400	2	<1%	2
27	AS25160 AS1299 AS5400	2	<1%	2
28	AS48185 AS1299 AS5400	2	<1%	2
29	AS58057 AS1836 AS5400	2	<1%	2
30	AS35710 AS3320 AS5400	2	<1%	2
31	AS15547 AS174 AS5400	2	<1%	2
32	AS48362 AS9002 AS5400	2	<1%	2
33	AS47692 AS33891 AS5400	2	<1%	2
34	AS47147 AS1299 AS5400	2	<1%	2
35	AS59890 AS60068 AS5400	2	<1%	2
36	AS271253 AS3356 AS5400	2	<1%	1
37	AS58057 AS34549 AS1299 AS5400	2	<1%	2
38	AS51184 AS47692 AS33891 AS5400	2	<1%	2
39	AS24482 AS2914 AS1299 AS5400	2	<1%	2
40	AS142289 AS9583 AS4755 AS6453 AS5400	2	<1%	1
41	AS5400	1	<1%	1
42	AS1828 AS5400	1	<1%	1
43	AS50304 AS5400	1	<1%	1
44	AS3333 AS5400	1	<1%	1
45	AS1257 AS5400	1	<1%	1
46	AS6881 AS5400	1	<1%	1
47	AS45489 AS5400	1	<1%	1
48	AS24961 AS5400	1	<1%	1
49	AS680 AS5400	1	<1%	1
50	AS12956 AS5400	1	<1%	1

50 of 260 paths shown. All of them are in the JSON.

More prefixes from AS5400

Routes seen by RIPE RIS in the 24 hours up to 15 Sep 2026, 21:20 UTC, fetched just now.