BGP map for 18.15.0.0/16

18.15.0.0/16 is announced by AS3 Massachusetts Institute of Technology and seen by 333 peers of 23 RIPE RIS collectors, over 262 different AS paths. Its busiest upstreams are AS174 Cogent Communications, LLC (47%), AS3356 Level 3 Parent, LLC (40%) and AS11164 Internet2 (4%). The most common path, used by 11 peers, is AS24482 AS2914 AS3356 AS3.

Routes checked 06:14:20 UTC

No change in the origin, the upstreams or the number of peers since 06:14 UTC, when this site first looked at 18.15.0.0/16.

AS-path graph toward 18.15.0.0/16

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 333 peers (3%) number on a line = peers using that link RIS data up to 06:14 UTC what the colours mean 12 of 262 paths drawn 4 quieter networks left out

Download PNG View JSON Raw upstream

333collector peers

23RIS collectors

262distinct AS paths

3.6average AS hops, 2 to 7

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	157	47%
AS3356 Level 3 Parent, LLC	132	40%
AS11164 Internet2	14	4%
AS6939 Hurricane Electric LLC	14	4%
AS7015 Comcast Cable Communications, LLC	8	2%
AS11537 Internet2	7	2%
AS293 ESnet	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS174 Cogent Communications, LLC	157	47%
AS3356 Level 3 Parent, LLC	132	40%
AS1299 TWELVE99 Arelion Sweden AB	29	9%
AS2914 NTT America, Inc.	24	7%
AS6939 Hurricane Electric LLC	14	4%
AS11164 Internet2	12	4%
AS6461 Zayo Bandwidth	10	3%
AS7922 Comcast Cable Communications, LLC	8	2%
AS7015 Comcast Cable Communications, LLC	8	2%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	7	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 AS3	11	3%	11
2	AS199524 AS174 AS3	7	2%	7
3	AS8218 AS6461 AS174 AS3	6	2%	6
4	AS6461 AS174 AS3	5	2%	5
5	AS9002 AS3356 AS3	4	1%	4
6	AS12779 AS174 AS3	4	1%	4
7	AS13030 AS1299 AS174 AS3	4	1%	4
8	AS2914 AS3356 AS3	3	<1%	3
9	AS48185 AS3356 AS3	3	<1%	3
10	AS49544 AS3356 AS3	3	<1%	2
11	AS25091 AS3356 AS3	3	<1%	3
12	AS11164 AS3	2	<1%	2
13	AS6830 AS174 AS3	2	<1%	2
14	AS3320 AS3356 AS3	2	<1%	2
15	AS25160 AS174 AS3	2	<1%	2
16	AS1299 AS174 AS3	2	<1%	2
17	AS50628 AS3356 AS3	2	<1%	2
18	AS14840 AS3356 AS3	2	<1%	1
19	AS14840 AS174 AS3	2	<1%	2
20	AS31027 AS3356 AS3	2	<1%	1
21	AS3491 AS174 AS3	2	<1%	2
22	AS35280 AS3356 AS3	2	<1%	2
23	AS15547 AS174 AS3	2	<1%	2
24	AS49544 AS11164 AS3	2	<1%	2
25	AS59890 AS3356 AS3	2	<1%	2
26	AS271253 AS3356 AS3	2	<1%	1
27	AS199524 AS11164 AS3	2	<1%	2
28	AS2497 AS174 AS3	2	<1%	2
29	AS19151 AS11164 AS3	2	<1%	2
30	AS917 AS60068 AS174 AS3	2	<1%	2
31	AS34927 AS1299 AS174 AS3	2	<1%	2
32	AS58057 AS34549 AS174 AS3	2	<1%	2
33	AS35710 AS3320 AS3356 AS3	2	<1%	2
34	AS51185 AS6762 AS174 AS3	2	<1%	2
35	AS14907 AS2914 AS3356 AS3	2	<1%	2
36	AS51184 AS1764 AS174 AS3	2	<1%	2
37	AS48362 AS1764 AS174 AS3	2	<1%	2
38	AS47147 AS1299 AS174 AS3	2	<1%	2
39	AS20612 AS9044 AS174 AS3	2	<1%	1
40	AS142289 AS9583 AS4755 AS6453 AS7922 AS7015 AS3	2	<1%	1
41	AS6894 AS174 AS3	1	<1%	1
42	AS31742 AS174 AS3	1	<1%	1
43	AS3257 AS3356 AS3	1	<1%	1
44	AS1828 AS11164 AS3	1	<1%	1
45	AS3491 AS3356 AS3	1	<1%	1
46	AS62167 AS3356 AS3	1	<1%	1
47	AS6424 AS174 AS3	1	<1%	1
48	AS39122 AS174 AS3	1	<1%	1
49	AS3170 AS174 AS3	1	<1%	1
50	AS7018 AS3356 AS3	1	<1%	1

50 of 262 paths shown. All of them are in the JSON.

More prefixes from AS3

Routes seen by RIPE RIS in the 24 hours up to 17 Sep 2026, 06:14 UTC, fetched just now.