BGP map for 18.3.0.0/16

18.3.0.0/16 is announced by AS3 Massachusetts Institute of Technology and seen by 334 peers of 23 RIPE RIS collectors, over 261 different AS paths. Its busiest upstreams are AS3356 Level 3 Parent, LLC (46%), AS174 Cogent Communications, LLC (40%) and AS6939 Hurricane Electric LLC (5%). The most common path, used by 11 peers, is AS24482 AS2914 AS3356 AS3.

Routes checked 12:31:31 UTC

No change in the origin, the upstreams or the number of peers since 00:21 UTC on 27 Oct, when this site first looked at 18.3.0.0/16.

AS-path graph toward 18.3.0.0/16

origin Tier 1Tier 2edge network prefix best path: chosen by 11 of 334 peers (3%) number on a line = peers using that link RIS data up to 09:59 UTC what the colours mean 12 of 261 paths drawn 6 quieter networks left out

View JSON Raw upstream

334collector peers

23RIS collectors

261distinct AS paths

3.6average AS hops, 2 to 8

Upstreams

Networks directly in front of the origin.

Network	Peers	Share
AS3356 Level 3 Parent, LLC	154	46%
AS174 Cogent Communications, LLC	133	40%
AS6939 Hurricane Electric LLC	17	5%
AS11164 Internet2	13	4%
AS7015 Comcast Cable Communications, LLC	9	3%
AS11537 Internet2	7	2%
AS293 ESnet	1	<1%

Transit networks

Networks between the collector peer and the origin.

Network	Peers	Share
AS3356 Level 3 Parent, LLC	154	46%
AS174 Cogent Communications, LLC	133	40%
AS1299 TWELVE99 Arelion Sweden AB	25	7%
AS2914 NTT America, Inc.	22	7%
AS6939 Hurricane Electric LLC	17	5%
AS11164 Internet2	11	3%
AS6461 Zayo Bandwidth	9	3%
AS7922 Comcast Cable Communications, LLC	9	3%
AS7015 Comcast Cable Communications, LLC	9	3%
AS6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.	8	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	AS8218 AS6461 AS3356 AS3	7	2%	6
3	AS199524 AS174 AS3	6	2%	6
4	AS9002 AS3356 AS3	4	1%	4
5	AS12779 AS174 AS3	4	1%	4
6	AS14840 AS3356 AS3	4	1%	2
7	AS13030 AS1299 AS174 AS3	4	1%	4
8	AS48185 AS3356 AS3	3	<1%	3
9	AS25091 AS3356 AS3	3	<1%	3
10	AS6461 AS3356 AS3	3	<1%	3
11	AS49544 AS3356 AS3	3	<1%	2
12	AS51185 AS6762 AS3356 AS3	3	<1%	3
13	AS11164 AS3	2	<1%	2
14	AS50628 AS3356 AS3	2	<1%	2
15	AS3320 AS3356 AS3	2	<1%	2
16	AS2914 AS3356 AS3	2	<1%	2
17	AS3257 AS3356 AS3	2	<1%	2
18	AS6461 AS174 AS3	2	<1%	2
19	AS6830 AS174 AS3	2	<1%	2
20	AS6424 AS174 AS3	2	<1%	2
21	AS25160 AS174 AS3	2	<1%	2
22	AS1299 AS174 AS3	2	<1%	2
23	AS49544 AS11164 AS3	2	<1%	2
24	AS15547 AS174 AS3	2	<1%	2
25	AS59890 AS3356 AS3	2	<1%	2
26	AS35280 AS3356 AS3	2	<1%	2
27	AS19151 AS11164 AS3	2	<1%	2
28	AS6762 AS3356 AS3	2	<1%	2
29	AS271253 AS3356 AS3	2	<1%	1
30	AS3491 AS174 AS3	2	<1%	2
31	AS31027 AS3356 AS3	2	<1%	1
32	AS58057 AS34549 AS174 AS3	2	<1%	2
33	AS917 AS60068 AS174 AS3	2	<1%	2
34	AS34019 AS25091 AS3356 AS3	2	<1%	2
35	AS47147 AS1299 AS174 AS3	2	<1%	2
36	AS48362 AS1764 AS174 AS3	2	<1%	2
37	AS47147 AS3320 AS3356 AS3	2	<1%	2
38	AS51184 AS1764 AS174 AS3	2	<1%	2
39	AS35710 AS3320 AS3356 AS3	2	<1%	2
40	AS20612 AS9044 AS174 AS3	2	<1%	1
41	AS14907 AS2914 AS3356 AS3	2	<1%	2
42	AS142289 AS9583 AS4755 AS6453 AS7922 AS7015 AS3	2	<1%	1
43	AS55720 AS6939 AS3	1	<1%	1
44	AS7018 AS3356 AS3	1	<1%	1
45	AS61218 AS6939 AS3	1	<1%	1
46	AS852 AS11164 AS3	1	<1%	1
47	AS37721 AS6939 AS3	1	<1%	1
48	AS50300 AS3356 AS3	1	<1%	1
49	AS58057 AS174 AS3	1	<1%	1
50	AS17639 AS3356 AS3	1	<1%	1

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

More prefixes from AS3

Routes seen by RIPE RIS in the 24 hours up to 8 Nov 2026, 09:59 UTC, fetched just now.