All ASNs

Autonomous System details for AS1101

AS1101

SURF B.V. • notsurf.net

AS1101 — SURF B.V.

AS Name

IP-EEND-AS

Country

The Netherlands (NL)

Website

notsurf.net

Number of IPv4

1,903,616

Number of IPv6

7.92 × 10²⁸

ASN type

Education

Status

Allocated

Registry

RIPE

Allocated

August 21, 2002

Last updated

March 06, 2026

IP Ranges

14 IPv4 prefixes, 3 IPv6 prefixes

Prefix	Company	Number of IPs
44.137.0.0/16	Amateur Radio Digital Communications	65,536
145.99.0.0/16	SURF bv	65,536
145.192.0.0/12	SURF B.V.	1,048,576
145.208.0.0/13	SURF B.V.	524,288
145.216.0.0/15	SURF B.V.	131,072
145.220.0.0/16	SURF B.V.	65,536
185.17.73.0/24	Darkness Reigns (Holding) B.V.	256
185.100.59.0/24	Darkness Reigns (Holding) B.V.	256
192.12.54.0/24	SURF bv	256
192.16.200.0/24	SURFnet bv	256
192.42.117.0/24	SURFnet bv	256
192.42.118.0/23	SURFnet bv	512
192.42.128.0/22	SURFnet bv	1,024
192.150.94.0/24	SURF bv	256
2001:67c:6ec::/48	SURF B.V.	1.21 × 10²⁴
2001:67c:12d8::/48	Darkness Reigns (Holding) B.V.	1.21 × 10²⁴
2a04:601::/32	Darkness Reigns (Holding) B.V.	7.92 × 10²⁸

IP ranges are the different blocks of IP addresses advertised by an Autonomous System (AS). These ranges can be used by the same organization operating the AS, or by different organizations.

Peers of AS1101

120 peers

AS1031 AS293 AS559 AS1267 AS1828 AS3214 AS3216 AS3333 AS4230 AS4455 AS4657 AS5405 AS5713 AS6424 AS6696 AS6939 AS7713 AS8218 AS8966 AS9044 AS12552 AS12637 AS12969 AS13194 AS13237 AS14630 AS14907 AS15576 AS18106 AS20485 AS20764 AS20932 AS24482 AS24940 AS24961 AS25091 AS25160 AS25220 AS28917 AS29140 AS30844 AS33891 AS34019 AS34177 AS34288 AS34927 AS35280 AS35360 AS37100 AS37468 AS37497 AS37662 AS38880 AS39351 AS41327 AS41666 AS42541 AS45352 AS47147 AS47957 AS48200 AS48362 AS48919 AS49434 AS49544 AS49605 AS50300 AS50629 AS50763 AS51184 AS51185 AS51873 AS52075 AS52320 AS56655 AS56911 AS56987 AS58057 AS58299 AS61049 AS61568 AS62167 AS63927 AS64475 AS132337 AS137409 AS199938 AS202365 AS204092 AS205112 AS205206 AS209823 AS212483 AS212635 AS263152 AS271253 AS1140 AS1764 AS3399 AS6057 AS6777 AS8283 AS8298 AS8881 AS12779 AS12859 AS14537 AS15547 AS15605 AS22356 AS29075 AS37721 AS39120 AS39122 AS41441 AS48185 AS57866 AS58511 AS199524 AS262355

AS1101 peers with these other Autonomous Systems.

Peering is a direct, often free, traffic exchange between Autonomous Systems (ASNs). They share routes only to their own networks and customers, making connections faster and cheaper for that specific traffic, without providing full internet access to each other.

Upstreams of AS1101

3 upstreams

AS1103 AS39686 AS64404

AS1101 uses these Autonomous Systems as its upstreams.

An upstream (or transit provider) is another AS that AS1101 pays for full internet connectivity, allowing it to reach all global destinations and be reachable by them.

Downstreams of AS1101

3 downstreams

AS1102 AS214380 AS215125

AS1101 provides internet connectivity to these downstream Autonomous Systems.

A downstream is a customer Autonomous System that pays another AS (its provider) for internet access. The provider AS carries the downstream's traffic and makes its network reachable.