SURFnet BV

IPv4 IPv6

Updated: 03 July 2020

We found 181 IPv4 networks operated by this organization.
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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: N/A
IP Range: 145.88.0.0 - 145.127.255.255
Block size: 2,621,440

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: N/A
IP Range: 145.88.0.0 - 145.118.255.255
Block size: 2,031,616

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.16.0.0/13
IP Range: 145.23.0.0 - 145.30.255.255
Block size: 524,288

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.120.0.0/13
IP Range: 145.120.0.0 - 145.127.255.255
Block size: 524,288

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Netherlands SURFnet BV
SURFNET-BLOCKB136

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.136.0.0/13
IP Range: 145.136.0.0 - 145.143.255.255
Block size: 524,288

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: N/A
IP Range: 145.73.0.0 - 145.79.255.255
Block size: 458,752

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.56.0.0/14
IP Range: 145.56.0.0 - 145.59.255.255
Block size: 262,144

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.16.0.0/14
IP Range: 145.18.0.0 - 145.21.255.255
Block size: 262,144

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.40.0.0/14
IP Range: 145.41.0.0 - 145.44.255.255
Block size: 262,144

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CIDR: N/A
IP Range: 145.2.0.0 - 145.4.255.255
Block size: 196,608

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: N/A
IP Range: 145.47.0.0 - 145.49.255.255
Block size: 196,608

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: N/A
IP Range: 145.8.0.0 - 145.10.255.255
Block size: 196,608

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: N/A
IP Range: 145.37.0.0 - 145.39.255.255
Block size: 196,608

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.60.0.0/15
IP Range: 145.61.0.0 - 145.62.255.255
Block size: 131,072

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.50.0.0/15
IP Range: 145.51.0.0 - 145.52.255.255
Block size: 131,072

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.14.0.0/15
IP Range: 145.15.0.0 - 145.16.255.255
Block size: 131,072

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.66.0.0/15
IP Range: 145.67.0.0 - 145.68.255.255
Block size: 131,072

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.84.0.0/15
IP Range: 145.85.0.0 - 145.86.255.255
Block size: 131,072

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.83.0.0/16
IP Range: 145.83.0.0 - 145.83.255.255
Block size: 65,536

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Netherlands SURFnet BV
NL-SURFNET-950612

CIDR: 194.171.0.0/16
IP Range: 194.171.0.0 - 194.171.255.255
Block size: 65,536

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Netherlands SURFnet BV
NL-SURFNET-970616

CIDR: 195.169.0.0/16
IP Range: 195.169.0.0 - 195.169.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.35.0.0/16
IP Range: 145.35.0.0 - 145.35.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.6.0.0/16
IP Range: 145.6.0.0 - 145.6.255.255
Block size: 65,536

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Netherlands SURFnet BV
HANZE-NET

Hanzehogeschool Groningen
Zernikeplein 1
9747 AS Groningen

CIDR: 145.33.0.0/16
IP Range: 145.33.0.0 - 145.33.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.71.0.0/16
IP Range: 145.71.0.0 - 145.71.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-EARLY-REGISTRATIONS

P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.65.0.0/16
IP Range: 145.65.0.0 - 145.65.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET7

SURFnet7 Network
SURFnet BV
P.O. Box 19035
Utrecht
3501 DA

CIDR: 145.145.0.0/16
IP Range: 145.145.0.0 - 145.145.255.255
Block size: 65,536

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Netherlands SURFnet4 Backbone
SURFNET4

CIDR: 145.41.0.0/16
IP Range: 145.41.0.0 - 145.41.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB220

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.220.0.0/16
IP Range: 145.220.0.0 - 145.220.255.255
Block size: 65,536

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Netherlands SURFnet BV
NL-SURFNET-20030715

CIDR: 192.87.0.0/16
IP Range: 192.87.0.0 - 192.87.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB86

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.90.0.0/16
IP Range: 145.90.0.0 - 145.90.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB91

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.95.0.0/16
IP Range: 145.95.0.0 - 145.95.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB92

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.96.0.0/16
IP Range: 145.96.0.0 - 145.96.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB98

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.102.0.0/16
IP Range: 145.102.0.0 - 145.102.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB100

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.104.0.0/16
IP Range: 145.104.0.0 - 145.104.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB101

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.105.0.0/16
IP Range: 145.105.0.0 - 145.105.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB102

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.106.0.0/16
IP Range: 145.106.0.0 - 145.106.255.255
Block size: 65,536

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Netherlands SURFnet BV
SPEELTUIN-NET

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.111.0.0/16
IP Range: 145.111.0.0 - 145.111.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB108

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.112.0.0/16
IP Range: 145.112.0.0 - 145.112.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB109

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.113.0.0/16
IP Range: 145.113.0.0 - 145.113.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB110

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.114.0.0/16
IP Range: 145.114.0.0 - 145.114.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB111

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.115.0.0/16
IP Range: 145.115.0.0 - 145.115.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB114

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.118.0.0/16
IP Range: 145.118.0.0 - 145.118.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB117

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.121.0.0/16
IP Range: 145.121.0.0 - 145.121.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB118

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.122.0.0/16
IP Range: 145.122.0.0 - 145.122.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB119

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.123.0.0/16
IP Range: 145.123.0.0 - 145.123.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB120

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.124.0.0/16
IP Range: 145.124.0.0 - 145.124.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB122

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.126.0.0/16
IP Range: 145.126.0.0 - 145.126.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB123

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.127.0.0/16
IP Range: 145.127.0.0 - 145.127.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB130

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.134.0.0/16
IP Range: 145.134.0.0 - 145.134.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB131

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.135.0.0/16
IP Range: 145.135.0.0 - 145.135.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB140

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.144.0.0/16
IP Range: 145.144.0.0 - 145.144.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-NETHERLIGHT

Netherlight project

CIDR: 145.146.0.0/16
IP Range: 145.146.0.0 - 145.146.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB143

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.147.0.0/16
IP Range: 145.147.0.0 - 145.147.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB144

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.148.0.0/16
IP Range: 145.148.0.0 - 145.148.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB145

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.149.0.0/16
IP Range: 145.149.0.0 - 145.149.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB146

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.150.0.0/16
IP Range: 145.150.0.0 - 145.150.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB147

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.151.0.0/16
IP Range: 145.151.0.0 - 145.151.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB148

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.152.0.0/16
IP Range: 145.152.0.0 - 145.152.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB149

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.153.0.0/16
IP Range: 145.153.0.0 - 145.153.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB150

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.154.0.0/16
IP Range: 145.154.0.0 - 145.154.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB151

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.155.0.0/16
IP Range: 145.155.0.0 - 145.155.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB152

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.156.0.0/16
IP Range: 145.156.0.0 - 145.156.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB153

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.157.0.0/16
IP Range: 145.157.0.0 - 145.157.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB154

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.158.0.0/16
IP Range: 145.158.0.0 - 145.158.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB155

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.159.0.0/16
IP Range: 145.159.0.0 - 145.159.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB156

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.160.0.0/16
IP Range: 145.160.0.0 - 145.160.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB157

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.161.0.0/16
IP Range: 145.161.0.0 - 145.161.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB158

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.162.0.0/16
IP Range: 145.162.0.0 - 145.162.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB159

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.163.0.0/16
IP Range: 145.163.0.0 - 145.163.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB160

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.164.0.0/16
IP Range: 145.164.0.0 - 145.164.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB161

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.165.0.0/16
IP Range: 145.165.0.0 - 145.165.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB162

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.166.0.0/16
IP Range: 145.166.0.0 - 145.166.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB163

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.167.0.0/16
IP Range: 145.167.0.0 - 145.167.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB164

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.168.0.0/16
IP Range: 145.168.0.0 - 145.168.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB165

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.169.0.0/16
IP Range: 145.169.0.0 - 145.169.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB166

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.170.0.0/16
IP Range: 145.170.0.0 - 145.170.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB167

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.171.0.0/16
IP Range: 145.171.0.0 - 145.171.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB168

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.172.0.0/16
IP Range: 145.172.0.0 - 145.172.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB169

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.173.0.0/16
IP Range: 145.173.0.0 - 145.173.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB170

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.174.0.0/16
IP Range: 145.174.0.0 - 145.174.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB171

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.175.0.0/16
IP Range: 145.175.0.0 - 145.175.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB172

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.176.0.0/16
IP Range: 145.176.0.0 - 145.176.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB173

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.177.0.0/16
IP Range: 145.177.0.0 - 145.177.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB174

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.178.0.0/16
IP Range: 145.178.0.0 - 145.178.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB175

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.179.0.0/16
IP Range: 145.179.0.0 - 145.179.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB176

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.180.0.0/16
IP Range: 145.180.0.0 - 145.180.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB177

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.181.0.0/16
IP Range: 145.181.0.0 - 145.181.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB178

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.182.0.0/16
IP Range: 145.182.0.0 - 145.182.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB179

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.183.0.0/16
IP Range: 145.183.0.0 - 145.183.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB180

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.184.0.0/16
IP Range: 145.184.0.0 - 145.184.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB181

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.185.0.0/16
IP Range: 145.185.0.0 - 145.185.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB182

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.186.0.0/16
IP Range: 145.186.0.0 - 145.186.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB183

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.187.0.0/16
IP Range: 145.187.0.0 - 145.187.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB184

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.188.0.0/16
IP Range: 145.188.0.0 - 145.188.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB185

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.189.0.0/16
IP Range: 145.189.0.0 - 145.189.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB186

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.190.0.0/16
IP Range: 145.190.0.0 - 145.190.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB187

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.191.0.0/16
IP Range: 145.191.0.0 - 145.191.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB188

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.192.0.0/16
IP Range: 145.192.0.0 - 145.192.255.255
Block size: 65,536

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Netherlands SURFnet BV
SURFNET-BLOCKB189

P.O. Box 19035
3501 DA Utrecht

CIDR: 145.193.0.0/16
IP Range: 145.193.0.0 - 145.193.255.255
Block size: 65,536

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