Organização

SURF B.V.

Enterprise The Netherlands

Endereços IPv4

9,540,864

Intervalos CIDR

156

Categoria

enterprise

BGP prefixes announced

141

live routing →

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100

Moderate

How this score is built

Baseline (neutral) 65
Enterprise allocation +4
Trust score 69 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About SURFnet

SURF is an organization that develops, implements and maintains the national research and education network (NREN) of the Netherlands. It operates the national research network formally called SURFnet.

Founded

1989

Headquarters

Utrecht

Parent

SURF (Samenwerkende Universitaire Rekenfaciliteiten)

Operates 3 networks present at 5 internet exchanges with a open peering policy.

Official website ↗ Summary from Wikipedia, CC BY-SA 4.0 · Data from Wikidata

SURF B.V. — pegada global de IP

Cidades onde SURF B.V. possui alocação IPv4 mensurável. Clique em qualquer ponto para abrir a página daquela cidade. O tamanho e a cor escalam com a contagem de IP.

Países atendidos por SURF B.V.

Cada país onde esta organização possui alocações IPv4, classificados por IPs detidos.

The Netherlands 10.59M

ASNs de propriedade de SURF B.V.

ASN	Nome	IPs	Prefixos	País
AS1103	SURF B.V.	7.20M	120	NL
AS1101	SURF B.V.	1.90M	15	NL
AS1199	SURF B.V.	590.8K	3	NL
AS1128	SURF B.V.	196.6K	3	NL
AS1161	SURF B.V.	69.6K	2	NL
AS1133	SURF B.V.	65.5K	1	NL
AS1147	SURF B.V.	34.8K	2	NL
AS1145	SURF B.V.	4.1K	1	NL
AS1152	SURF B.V.	2.6K	2	NL
AS1102	SURF B.V.	1.3K	4	NL
AS1149	SURF B.V.	1.0K	3	NL

Maiores intervalos CIDR

CIDR	IPs	PTR Density	ASN	País	State	City
145.144.0.0/12	1.05M	86.5%	AS1103	NL	Gelderland	Wehl
145.160.0.0/12	1.05M	0.0%	AS1103	NL	—	—
145.192.0.0/12	1.05M	99.8%	AS1101	NL	—	—
145.144.0.0/13	524.3K	73.1%	AS1103	NL	Gelderland	Wehl
145.152.0.0/13	524.3K	100.0%	AS1199	NL	—	—
145.208.0.0/13	524.3K	97.7%	AS1101	NL	—	—
145.88.0.0/14	262.1K	18.5%	AS1103	NL	South Holland	Leiden
145.120.0.0/14	262.1K	50.0%	AS1103	NL	Gelderland	Barneveld
145.140.0.0/14	262.1K	75.0%	AS1103	NL	South Holland	Rotterdam
145.148.0.0/14	262.1K	0.0%	AS1103	NL	—	—
145.2.0.0/15	131.1K	25.2%	AS1103	NL	Overijssel	Deventer
145.28.0.0/15	131.1K	10.8%	AS1103	NL	North Holland	Spierdijk
145.38.0.0/15	131.1K	1.3%	AS1103	NL	—	—
145.48.0.0/15	131.1K	0.0%	AS1103	NL	North Brabant	Oosterhout
145.74.0.0/15	131.1K	14.7%	AS1103	NL	Gelderland	Nijmegen
145.92.0.0/15	131.1K	0.0%	AS1103	NL	North Brabant	Eindhoven
145.124.0.0/15	131.1K	0.2%	AS1103	NL	—	—
145.136.0.0/15	131.1K	57.9%	AS1103	NL	South Holland	Rotterdam
145.216.0.0/15	131.1K	95.3%	AS1101	NL	—	—
44.137.0.0/16	65.5K	6.2%	AS1101	US	—	—
129.125.0.0/16	65.5K	32.7%	AS1103	NL	Groningen	Groningen
130.37.0.0/16	65.5K	14.0%	AS1103	NL	North Holland	Amsterdam
130.89.0.0/16	65.5K	20.3%	AS1133	NL	Overijssel	Enschede
130.161.0.0/16	65.5K	2.0%	AS1128	NL	—	—
131.155.0.0/16	65.5K	44.1%	AS1161	NL	North Brabant	Eindhoven
131.174.0.0/16	65.5K	5.4%	AS1103	NL	Gelderland	Wijchen
131.180.0.0/16	65.5K	3.5%	AS1128	NL	South Holland	Delft
131.211.0.0/16	65.5K	19.6%	AS1103	NL	Utrecht	Utrecht
131.224.0.0/16	65.5K	0.8%	AS1103	NL	Utrecht	De Bilt
132.229.0.0/16	65.5K	10.2%	AS1103	NL	South Holland	Leiden
134.221.0.0/16	65.5K	3.2%	AS1103	NL	—	—
136.231.0.0/16	65.5K	11.8%	AS1103	NL	South Holland	Delft
137.56.0.0/16	65.5K	48.7%	AS1103	NL	North Brabant	Tilburg
137.120.0.0/16	65.5K	1.8%	AS1103	NL	Limburg	Maastricht
137.224.0.0/16	65.5K	0.8%	AS1103	NL	Gelderland	Wageningen
139.63.0.0/16	65.5K	11.2%	AS1103	NL	South Holland	Delft
141.252.0.0/16	65.5K	0.1%	AS1103	NL	Friesland	Leeuwarden
143.121.0.0/16	65.5K	1.2%	AS1103	NL	Utrecht	Utrecht
145.0.0.0/16	65.5K	0.4%	AS1103	NL	North Holland	Amsterdam
145.5.0.0/16	65.5K	28.1%	AS1103	NL	South Holland	Rotterdam
145.9.0.0/16	65.5K	0.0%	AS1103	NL	—	—
145.19.0.0/16	65.5K	29.1%	AS1103	NL	Zeeland	Flushing
145.20.0.0/16	65.5K	5.1%	AS1103	NL	—	—
145.23.0.0/16	65.5K	0.1%	AS1103	NL	Utrecht	Bilthoven
145.24.0.0/16	65.5K	18.4%	AS1103	NL	North Holland	Egmond aan den Hoef
145.33.0.0/16	65.5K	0.2%	AS1103	NL	Groningen	Hoogezand
145.37.0.0/16	65.5K	0.0%	AS1103	NL	Groningen	Groningen
145.41.0.0/16	65.5K	0.0%	AS1103	NL	—	—
145.44.0.0/16	65.5K	38.7%	AS1103	NL	Overijssel	Ommen
145.51.0.0/16	65.5K	0.6%	AS1103	NL	—	—
145.52.0.0/16	65.5K	1.8%	AS1103	NL	South Holland	The Hague
145.76.0.0/16	65.5K	0.1%	AS1103	NL	Overijssel	Hengelo
145.81.0.0/16	65.5K	61.1%	AS1103	NL	North Holland	Amsterdam
145.85.0.0/16	65.5K	0.2%	AS1103	NL	North Brabant	Eindhoven
145.94.0.0/16	65.5K	0.8%	AS1128	NL	South Holland	Delft
145.95.0.0/16	65.5K	0.0%	AS1103	NL	—	—
145.96.0.0/16	65.5K	98.5%	AS1103	NL	—	—
145.99.0.0/16	65.5K	0.0%	AS1101	NL	—	—
145.101.0.0/16	65.5K	66.1%	AS1103	NL	North Brabant	Breda
145.103.0.0/16	65.5K	100.0%	AS1103	NL	South Holland	The Hague
145.108.0.0/16	65.5K	89.8%	AS1103	NL	North Holland	Amstelveen
145.111.0.0/16	65.5K	0.0%	AS1199	NL	—	—
145.117.0.0/16	65.5K	100.0%	AS1103	NL	North Holland	Amsterdam
145.118.0.0/16	65.5K	49.9%	AS1103	NL	South Holland	Leiden
145.126.0.0/16	65.5K	45.0%	AS1103	NL	Overijssel	Enschede
145.138.0.0/16	65.5K	74.6%	AS1103	NL	Overijssel	Raalte
145.144.0.0/16	65.5K	0.0%	AS1103	NL	Gelderland	Wehl
145.147.0.0/16	65.5K	0.0%	AS1103	NL	—	—
145.220.0.0/16	65.5K	91.4%	AS1101	NL	—	—
156.83.0.0/16	65.5K	1.5%	AS1103	NL	South Holland	Rotterdam
192.87.0.0/16	65.5K	49.8%	AS1103	NL	North Holland	Amsterdam
194.171.0.0/16	65.5K	0.0%	AS1103	NL	Utrecht	Utrecht
195.169.0.0/16	65.5K	25.4%	AS1103	NL	Utrecht	Amersfoort
145.1.0.0/17	32.8K	0.0%	AS1103	NL	North Holland	Den Hoorn
145.97.128.0/17	32.8K	96.0%	AS1103	NL	Groningen	Groningen
145.98.128.0/17	32.8K	100.0%	AS1103	NL	—	—
145.100.128.0/17	32.8K	45.4%	AS1103	NL	Limburg	Venlo
145.107.128.0/17	32.8K	0.4%	AS1103	NL	Utrecht	Utrecht
145.127.0.0/17	32.8K	100.0%	AS1103	NL	Limburg	Maastricht
145.127.128.0/17	32.8K	97.1%	AS1147	NL	Friesland	Heerenveen
145.145.0.0/17	32.8K	0.0%	AS1103	NL	—	—
145.146.128.0/17	32.8K	0.0%	AS1103	NL	—	—
194.171.128.0/17	32.8K	50.2%	AS1103	NL	Utrecht	Utrecht
145.97.64.0/18	16.4K	74.9%	AS1103	NL	Overijssel	Saasveld
145.98.64.0/18	16.4K	0.3%	AS1103	NL	—	—
145.100.0.0/18	16.4K	14.1%	AS1103	NL	North Holland	Amsterdam
145.102.64.0/18	16.4K	64.1%	AS1103	NL	North Holland	Amsterdam
145.102.192.0/18	16.4K	37.5%	AS1103	NL	Gelderland	Nijmegen
145.107.64.0/18	16.4K	0.0%	AS1103	NL	Utrecht	Utrecht
145.116.64.0/18	16.4K	0.0%	AS1103	NL	South Holland	The Hague
145.116.128.0/18	16.4K	0.0%	AS1103	NL	Gelderland	Nijmegen
145.145.192.0/18	16.4K	0.0%	AS1103	NL	—	—
145.146.64.0/18	16.4K	0.0%	AS1103	NL	—	—
194.171.0.0/18	16.4K	42.7%	AS1103	NL	North Holland	Amsterdam
145.97.0.0/19	8.2K	31.3%	AS1103	NL	Gelderland	Nijmegen
145.98.32.0/19	8.2K	100.0%	AS1103	NL	—	—
145.100.64.0/19	8.2K	25.0%	AS1103	NL	North Holland	Amsterdam
145.102.32.0/19	8.2K	0.5%	AS1103	NL	South Holland	Leiden
145.102.160.0/19	8.2K	0.4%	AS1103	NL	North Holland	Beverwijk
145.107.32.0/19	8.2K	25.2%	AS1103	NL	Limburg	Horst aan de Maas Municipality

Frequently Asked Questions

Quantos endereços IP SURF B.V. possui?

SURF B.V. controla 9.54M endereços IPv4 distribuídos por 156 intervalos CIDR. A organização está registrada em The Netherlands.

Quais ASNs SURF B.V. opera?

SURF B.V. opera 11 Autonomous Systems. Cada ASN representa uma rede roteada independentemente que SURF B.V. gerencia para a entrega de tráfego da internet.

Que tipo de organização é SURF B.V.?

SURF B.V. is categorized as enterprise. Esta classificação é baseada no uso principal da organização de suas alocações de endereços IP.

Última atualização: 2026-07-24 18:55:31 UTC