AS Number
AS237
AS Name
MERIT-AS-14
Org Name
Merit Network Inc.
Registry

arin

RegDate

2009-12-08

Updated

2020-04-21

AS237 Looking Glass
IPv4Prefixes

89

IPv6Prefixes

8

IPv4 NUMs

2,217,984

IPv6 NUMs(/64)

8,591,114,240

2,217,984 IPv4 Addresses
CIDR Description IP Num
23.135.208.0/24
IRR Valid
ANYROAM 256
35.7.112.0/20
ROA Signed and Valid IRR Valid
University of Michigan - Flint 4096
35.16.0.0/16
ROA Signed and Valid IRR Valid
Wayne State University 65536
35.24.0.0/17
ROA Signed and Valid IRR Valid
Northern Michigan University (C07537175) 32768
35.24.128.0/18
ROA Signed and Valid IRR Valid
Northern Michigan University (C07537175) 16384
35.24.192.0/19
ROA Signed and Valid IRR Valid
Northern Michigan University 8192
35.24.224.0/19
ROA Signed and Valid IRR Valid
Northern Michigan University 8192
35.25.0.0/16
ROA Signed and Valid IRR Valid
Northern Michigan University 65536
35.33.0.0/18
ROA Signed and Valid IRR Valid
Central Michigan University 16384
35.33.5.0/24
IRR Valid
Central Michigan University 256
35.33.6.0/24
ROA Signed and Valid IRR Valid
Central Michigan University 256
35.34.0.0/18
ROA Signed and Valid IRR Valid
Central Michigan University 16384
35.37.0.0/16
ROA Signed and Valid IRR Valid
Merit Network Inc. 65536
35.38.0.0/16
ROA Signed and Valid IRR Valid
Grand Valley State University 65536
35.39.0.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.39.32.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.39.64.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.39.128.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.39.160.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.39.192.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.39.224.0/19
ROA Signed and Valid IRR Valid
Grand Valley State University 8192
35.40.0.0/16
ROA Signed and Valid IRR Valid
Grand Valley State University 65536
35.46.0.0/18
ROA Signed and Valid IRR Valid
Western Michigan University 16384
35.46.64.0/18
ROA Signed and Valid IRR Valid
Western Michigan University 16384
35.50.0.0/18
IRR Valid
Oakland University 16384
35.50.0.0/17
ROA Signed and Valid IRR InValid
Oakland University 32768
35.50.64.0/18
IRR Valid
Oakland University 16384
35.58.0.0/16
ROA Signed and Valid IRR Valid
Merit Network Inc. 65536
35.62.0.0/16
IRR InValid
City of Marshall 65536
35.63.0.0/16
ROA Signed and Valid IRR Valid
Merit Network Inc. 65536
35.64.0.0/14
ROA Signed and Valid IRR Valid
Merit Network Inc. 262144
35.68.0.0/15
ROA Signed and Valid IRR Valid
Merit Network Inc. 131072
35.70.0.0/16
ROA Signed and Valid IRR Valid
Merit Network Inc. 65536
35.71.0.0/18
ROA Signed and Valid IRR Valid
Merit Network Inc. 16384
74.115.236.0/24
IRR Parent Valid
Oakland Community College 256
74.115.236.0/23
IRR Valid
Oakland Community College 512
74.115.237.0/24
IRR Parent Valid
Oakland Community College 256
141.210.0.0/24
IRR Parent Valid
Oakland University 256
141.210.0.0/17
ROA Signed and Valid IRR Parent Valid
Oakland University 32768
141.210.0.0/16
ROA Signed and Valid IRR Valid
Oakland University 65536
141.210.32.0/19
IRR Parent Valid
Oakland University 8192
141.210.128.0/17
ROA Signed and Valid IRR Parent Valid
Oakland University 32768
141.210.224.0/19
ROA Signed and Valid IRR Parent Valid
Oakland University 8192
141.217.0.0/16
IRR Valid
Wayne State University 65536
141.218.0.0/24
IRR Parent Valid
Western Michigan University 256
141.218.0.0/16
IRR Valid
Western Michigan University 65536
141.218.11.0/24
IRR Parent Valid
Western Michigan University 256
141.218.203.0/24
IRR Parent Valid
Western Michigan University 256
141.218.204.0/22
IRR Parent Valid
Western Michigan University 1024
141.218.208.0/20
IRR Parent Valid
Western Michigan University 4096
141.218.224.0/22
IRR Parent Valid
Western Michigan University 1024
141.218.228.0/23
IRR Parent Valid
Western Michigan University 512
148.61.0.0/24
IRR Parent Valid
Grand Valley State University 256
148.61.0.0/16
IRR Valid
Grand Valley State University 65536
161.133.0.0/17
IRR Parent Valid
Delta College 32768
161.133.2.0/24
IRR Parent Valid
Delta College 256
161.133.104.0/21
IRR Parent Valid
Delta College 2048
161.133.112.0/21
IRR Parent Valid
Delta College 2048
161.133.120.0/21
IRR Parent Valid
Delta College 2048
161.133.128.0/17
IRR Parent Valid
Delta College 32768
161.133.129.0/24
IRR Parent Valid
Delta College 256
163.253.36.0/22
IRR Valid
Internet2 TSG 1024
164.76.0.0/24
IRR Parent Valid
Eastern Michigan University 256
164.76.0.0/16
IRR Valid
Eastern Michigan University 65536
164.76.160.0/19
IRR Parent Valid
Eastern Michigan University 8192
192.35.170.0/24
IRR Valid
Merit Network Inc. 256
192.41.229.0/24
IRR Valid
Merit Network Inc. 256
192.41.232.0/22
IRR InValid
University of Michigan 1024
192.88.242.0/24
ROA Signed and Valid IRR Valid
Northwestern Michigan College 256
192.101.250.0/24
ROA Signed and Valid IRR Valid
Alma College 256
192.122.182.0/23
ROA Signed and Valid IRR Valid
Merit Network Inc. 512
192.122.184.0/21
IRR Valid
Merit Network Inc. 2048
192.122.200.0/24
ROA Signed and Valid IRR Valid
Merit Network Inc. 256
192.138.137.0/24
ROA Signed and Valid IRR Valid
Kettering University 256
192.160.192.0/24
ROA Signed and Valid IRR Valid
Kettering University 256
192.160.204.0/24
ROA Signed and Valid IRR Valid
Kettering University 256
192.188.100.0/24
IRR Valid
Michigan State University 256
192.203.195.0/24
ROA Signed and Valid IRR Valid
Merit Network Inc. 256
192.245.252.0/24
ROA Signed and Valid IRR Valid
Kettering University 256
192.245.254.0/24
ROA Signed and Valid IRR Valid
Kettering University 256
198.17.130.0/23
IRR InValid
Western Michigan University 512
198.17.132.0/23
IRR InValid
Western Michigan University 512
198.17.134.0/24
IRR Valid
Western Michigan University 256
198.108.0.0/14
ROA Signed and Valid IRR Valid
Merit Network Inc. 262144
204.38.0.0/16
ROA Signed and Valid IRR Valid
Merit Network Inc. 65536
204.39.195.0/24
IRR Valid
Merit Network Inc. 256
206.201.157.0/24
IRR Valid
Genesee County 256
207.72.0.0/14
ROA Signed and Valid IRR Valid
Merit Network Inc. 262144
207.75.164.0/23
ROA Signed and Valid IRR Parent Valid
University Corporation for Advanced Internet Development 512
CIDR Description IP NUMs(prefix /64)
2001:468:2620::/48
ROA Signed and Valid IRR Valid
Internet2 65536
2001:468:26e1::/48
ROA Signed and Valid IRR Valid
Internet2 65536
2001:48a8::/32
ROA Signed and Valid IRR Valid
Merit Network Inc. 4294967296
2001:48a8:800::/40
ROA Signed and Valid IRR Parent Valid
Merit Network Inc. 16777216
2001:48a8:68fe::/48
IRR Valid
Merit Network Inc. 65536
2001:48a8:7800::/40
ROA Signed and Valid IRR Valid
Wayne State University 16777216
2606:9700::/32
IRR Valid
Wayne State University 4294967296
2620:13f:6000::/44
IRR Valid
ANYROAM 1048576
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS11537 INTERNET2-RESEARCH-EDU - Internet2, US United States 8,960 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 94,976 355,679,338,496 IPv4 IPv4 IPv6 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 35,824,128 258,745,434,112 IPv4 IPv4 IPv6 IPv6
AS293 ESNET, US United States 135,936 4,295,163,904 IPv4 IPv4 IPv6 IPv6
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 220,672 214,765,666,304 IPv4 IPv4 IPv6 IPv6
AS3303 SWISSCOM - Swisscom (Schweiz) AG, CH Switzerland 3,591,424 200,052,441,088 IPv4 IPv4
AS6327 SHAW - Shaw Communications Inc., CA Canada 5,406,720 77,317,799,936 IPv4 IPv4
AS30600 AS-CMN - Metronet, US United States 203,776 1,099,511,627,776 IPv4 IPv4 IPv6 IPv6
AS6939 HURRICANE - Hurricane Electric LLC, US United States 474,368 282,631,665,745,920 IPv4 IPv4 IPv6 IPv6
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US United States 93,755,136 2,737,557,012,480 IPv4 IPv4 IPv6 IPv6
AS11164 INTERNET2-I2PX - Internet2, US United States 2,048 17,170,432 IPv4 IPv4 IPv6 IPv6
AS19151 BBO-1 - BroadbandONE, LLC, US United States 32,512 4,294,967,296 IPv4 IPv4
AS20253 QWILTED-PROD-01 - Qwilt Inc., US United States 7,680 19,791,872 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS53263 GRCC-AS1 - Grand Rapids Community College, US United States 1,280 0 IPv4 IPv4
AS393665 BAKERS - Baker College, US United States 2,048 0 IPv4 IPv4
AS11206 FSU-AS-1 - Ferris State University, US United States 65,536 0 IPv4 IPv4
AS36375 UMICH-AS-5 - University of Michigan, US United States 826,496 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS40044 BRONSON-HEALTHCARE-GROUP-INC - Bronson Healthcare Group, Inc., US United States 512 0 IPv4 IPv4
AS46241 WASHTENAW-ISD-ASN - Washtenaw ISD, US United States 2,048 0 IPv4 IPv4
AS229 MERIT-AS-6 - Merit Network Inc., US United States 1,024 65,536 IPv4 IPv4 IPv6 IPv6
AS395945 HBPW - Holland Board of Public Works, US United States 2,048 4,294,967,296 IPv4 IPv4