AS1101 is the autonomous system of SURF B.V.. It holds 1,773,056 IPv4 addresses in 14 prefixes plus 5 IPv6 ranges, mainly in 
Netherlands.
By IPv4 addresses the network ranks #222 worldwide and #5 of 1,310 networks in Netherlands. That is 3.1% of the country’s IPv4 space.
The largest block is 145.192.0.0 to 145.215.255.255 with 1,572,864 addresses, geolocated to Utrecht.
- IPv4 addresses
- 1,773,056
- IPv4 prefixes
- 14
- World rank
- #222
- Country share
- 3.1%
- IPv6 ranges
- 5
Addresses by country
- Netherlands 100%
Largest blocks
- 145.192.0.0 Utrecht1,572,864
- 145.220.0.0 Utrecht65,536
- 145.99.0.0 Utrecht65,536
- 44.137.0.0 Amsterdam65,536
- 192.42.128.0 Amsterdam1,024
- 192.42.117.0 Amsterdam768
- 145.102.4.0 Utrecht512
- 192.150.94.0 Utrecht256
Networks of similar size
- AS9812 Oriental Cable Network Co., Ltd.
1,785,856 - AS8708 DIGI ROMANIA S.A.
1,782,016 - AS16232 Telecom Italia S.p.A.
1,777,664 - AS3 Massachusetts Institute of Technology
1,776,128 - AS8402 PJSC "Vimpelcom"
1,771,008 - AS2860 NOS COMUNICACOES, S.A.
1,770,496 - AS33771 Safaricom Limited
1,752,576 - AS24835 Vodafone Data - Egypt
1,751,040
IPv4 prefixes
Questions and answers
Who owns AS1101?
Autonomous system AS1101 is operated by SURF B.V..
How many IP addresses does AS1101 have?
The network holds 1,773,056 IPv4 addresses in 14 prefixes, plus 5 IPv6 ranges.
Which country is AS1101 in?
The main country is Netherlands.
How big is AS1101?
By IPv4 addresses it ranks #222 worldwide.
What is the largest address block of AS1101?
145.192.0.0 to 145.215.255.255, 1,572,864 addresses.