BGP map for 201.163.0.0/21

201.163.0.0/21 is announced by AS11172 Alestra, S. de R.L. de C.V. and seen by 329 peers of 23 RIPE RIS collectors, over 252 different AS paths. Its busiest upstreams are AS174 Cogent Communications, LLC (67%), AS32098 Transtelco Inc (29%) and AS1299 TWELVE99 (4%). The most common path, used by 11 peers, is AS24482 AS32098 AS11172.

Routes checked 03:23:56 UTC

No change in the origin, the upstreams or the number of peers since 03:23 UTC, when this site first looked at 201.163.0.0/21.

AS-path graph toward 201.163.0.0/21

origin Tier 1Tier 2transitedge network prefix best path: chosen by 11 of 329 peers (3%) number on a line = peers using that link RIS data up to 03:22 UTC what the colours mean 12 of 252 paths drawn 6 quieter networks left out

Download PNG View JSON Raw upstream

329collector peers

23RIS collectors

252distinct AS paths

3.7average AS hops, 2 to 6

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	221	67%
AS32098 Transtelco Inc	94	29%
AS1299 TWELVE99 Arelion Sweden AB	13	4%
AS8151 UNINET	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	221	67%
AS32098 Transtelco Inc	94	29%
AS3356 Level 3 Parent, LLC	26	8%
AS2914 NTT America, Inc.	19	6%
AS3257 GTT-BACKBONE GTT Communications Inc.	14	4%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	12	4%
AS1299 TWELVE99 Arelion Sweden AB	11	3%
AS6453 TATA COMMUNICATIONS (AMERICA) INC	10	3%
AS6461 Zayo Bandwidth	9	3%
AS3320 DTAG Deutsche Telekom AG	9	3%

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 AS32098 AS11172	11	3%	11
2	AS199524 AS174 AS11172	9	3%	9
3	AS8218 AS6461 AS174 AS11172	7	2%	6
4	AS6461 AS174 AS11172	5	2%	5
5	AS13030 AS1299 AS11172	4	1%	4
6	AS12779 AS174 AS11172	4	1%	4
7	AS14840 AS174 AS11172	4	1%	2
8	AS47147 AS3320 AS174 AS11172	4	1%	4
9	AS2914 AS32098 AS11172	3	<1%	3
10	AS3491 AS174 AS11172	3	<1%	3
11	AS25091 AS32098 AS11172	3	<1%	3
12	AS9002 AS3257 AS32098 AS11172	3	<1%	3
13	AS48362 AS1764 AS174 AS11172	3	<1%	3
14	AS1299 AS11172	2	<1%	2
15	AS6830 AS174 AS11172	2	<1%	2
16	AS3320 AS174 AS11172	2	<1%	2
17	AS62167 AS174 AS11172	2	<1%	2
18	AS25160 AS174 AS11172	2	<1%	2
19	AS15547 AS174 AS11172	2	<1%	2
20	AS6762 AS174 AS11172	2	<1%	2
21	AS49544 AS32098 AS11172	2	<1%	2
22	AS59890 AS174 AS11172	2	<1%	2
23	AS271253 AS174 AS11172	2	<1%	1
24	AS2497 AS174 AS11172	2	<1%	2
25	AS19151 AS32098 AS11172	2	<1%	2
26	AS917 AS60068 AS32098 AS11172	2	<1%	2
27	AS48185 AS3356 AS174 AS11172	2	<1%	2
28	AS50628 AS3356 AS174 AS11172	2	<1%	2
29	AS58057 AS34549 AS174 AS11172	2	<1%	2
30	AS49544 AS3356 AS174 AS11172	2	<1%	1
31	AS31027 AS3356 AS174 AS11172	2	<1%	1
32	AS35710 AS3320 AS174 AS11172	2	<1%	2
33	AS49544 AS2914 AS32098 AS11172	2	<1%	2
34	AS51184 AS1764 AS174 AS11172	2	<1%	2
35	AS34019 AS25091 AS32098 AS11172	2	<1%	2
36	AS47692 AS2914 AS32098 AS11172	2	<1%	2
37	AS51185 AS6762 AS174 AS11172	2	<1%	2
38	AS20612 AS9044 AS174 AS11172	2	<1%	1
39	AS42473 AS9002 AS3257 AS32098 AS11172	2	<1%	2
40	AS142289 AS9583 AS4755 AS6453 AS32098 AS11172	2	<1%	1
41	AS6894 AS174 AS11172	1	<1%	1
42	AS31742 AS174 AS11172	1	<1%	1
43	AS1828 AS32098 AS11172	1	<1%	1
44	AS6424 AS174 AS11172	1	<1%	1
45	AS39122 AS174 AS11172	1	<1%	1
46	AS12969 AS1299 AS11172	1	<1%	1
47	AS34927 AS1299 AS11172	1	<1%	1
48	AS3170 AS174 AS11172	1	<1%	1
49	AS7018 AS174 AS11172	1	<1%	1
50	AS50304 AS1299 AS11172	1	<1%	1

50 of 252 paths shown. All of them are in the JSON.

More prefixes from AS11172

Routes seen by RIPE RIS in the 24 hours up to 16 Sep 2026, 03:22 UTC, fetched just now.