206208 looking glass

AS237 Merit Network Inc. 🇺🇸 US

Announcing 92 prefixes, seen at the RIS collectors.

IPv4 prefixes
83
2,359,808 (9,218 × /24)
IPv6 prefixes
9
2 × /32
Upstreams
6
transit providers observed
Peers
2
settlement-free adjacencies
Downstreams
34
transit customers observed
Customer cone
33
ASes reachable through it

Registry and operator data

AS number
AS237
Name
Merit Network Inc.
Organisation
Merit Network
Country
🇺🇸 US
RIR
ARIN
Allocated
1988-09-12
Network type
Educational/Research
Traffic levels
300-500Gbps
Scope
Regional
Peering policy
Selective
IRR as-set
RADB::AS-MICHNET
Website
http://www.merit.edu
PeeringDB
net/928
Exchanges
4
Facilities
6

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

59 valid (64.1%) 0 invalid (0.0%) 33 no ROA (35.9%)

Upstreams

Networks seen providing transit to this one

Network Country Cone IPv4 prefixes Paths Source
AS1299 Arelion (fka. Telia Carrier) 🇸🇪 SE 68,760 133 3,525 CAIDA
AS174 Cogent Communications, LLC 🇺🇸 US 66,047 3,955 1,399 CAIDA
AS2914 NTT America, Inc. 🇺🇸 US 56,718 1,476 1,096 CAIDA
AS7018 AT&T Enterprises, LLC 🇺🇸 US 25,879 629 292 CAIDA
AS11537 Internet2 🇺🇸 US 2,248 23 431 CAIDA
AS11164 Internet2 I2PX 🇺🇸 US 1,266 13 442 CAIDA

Peers

Adjacencies that look settlement-free rather than transit

Network Country Cone IPv4 prefixes Paths Source
AS6939 Hurricane Electric LLC 🇺🇸 US 54,152 185 1,240 CAIDA
AS3303 Swisscom (Schweiz) AG 🇨🇭 CH 20,587 345 1 CAIDA

Downstreams

Networks this one appears to provide transit to

Network Country Cone IPv4 prefixes Paths Source
AS231 Michigan State University 🇺🇸 US 2 7 330 CAIDA
AS11206 Ferris State University 🇺🇸 US 0 33 1,324 CAIDA
AS25609 Detroit Medical Center 🇺🇸 US 0 30 720 CAIDA
AS36375 University of Michigan 🇺🇸 US 0 19 710 CAIDA
AS27274 Central Michigan University 🇺🇸 US 0 3 163 CAIDA
AS62618 Michigan Technological University 🇺🇸 US 0 3 128 CAIDA
AS62676 University of Michigan - Dearborn 🇺🇸 US 0 2 86 CAIDA
AS22251 Regional Educational Media Center 1 (REMC1) 🇺🇸 US 0 10 85 CAIDA
AS394769 University of Michigan - Flint 🇺🇸 US 0 2 84 CAIDA
AS1638 Mott Community College 🇺🇸 US 0 2 84 CAIDA
AS14924 Merit Network Inc. 🇺🇸 US 0 2 82 CAIDA
AS1432 Albion College 🇺🇸 US 0 2 78 CAIDA
AS229 Merit Network Inc. 🇺🇸 US 0 2 75 CAIDA
AS46825 Coldwater Board of Public Utilities 🇺🇸 US 0 1 74 CAIDA
AS396470 Lansing Community College 🇺🇸 US 0 3 69 CAIDA
AS177 University of Michigan 🇺🇸 US 0 0 66 inferred
AS400238 PIE&G 🇺🇸 US 0 43 50 CAIDA
AS19106 Andrews University 🇺🇸 US 0 1 47 CAIDA
AS22217 Calvin College 🇺🇸 US 0 3 46 CAIDA
AS402639 Washtenaw Community College 🇺🇸 US 0 1 43 CAIDA
AS46241 Washtenaw ISD 🇺🇸 US 0 3 43 CAIDA
AS26174 Saginaw Valley State University 🇺🇸 US 0 1 42 CAIDA
AS393817 Lake Michigan College 🇺🇸 US 0 1 42 CAIDA
AS400927 Barger Creek Wireless 🇺🇸 US 0 1 41 CAIDA
AS15099 County of Monroe 🇺🇸 US 0 1 39 CAIDA
AS11494 Kellogg Community College 🇺🇸 US 0 1 30 CAIDA
AS398261 Monroe County Community College 🇺🇸 US 0 1 15 inferred
AS32285 Henry Ford College 🇺🇸 US 0 1 12 CAIDA
AS393665 Baker College 🇺🇸 US 0 1 10 CAIDA
AS395945 Holland Board of Public Works 🇺🇸 US 0 4 6 CAIDA
AS3730 Aquinas College 🇺🇸 US 0 1 5 CAIDA
AS30154 Davenport University 🇺🇸 US 0 2 5 CAIDA
AS40044 Bronson Healthcare Group, Inc. 🇺🇸 US 0 1 3 CAIDA
AS53263 Grand Rapids Community College 🇺🇸 US 0 2 2 CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.