145.102.4.0
Utrecht · The Netherlands · SURF B.V.
- Autonomous system
- AS1101
- Country
- NL
- Risk score
- Not a probability
IP address summary
- IP address
- 145.102.4.0
- ASN
- AS1101
- Network operator
- SURF B.V.
- ISP
- SURF B.V.
- Containing network profile
- 145.0.0.0/8
- Operator category
- Academic
The containing profile is the nearest published aggregate. It is not a registry allocation or BGP ownership record.
Public ASN reference
- Reference ASN
- AS1101
- Source label
- IP-EEND-AS SURF B.V.
- Reference interval
- 145.102.4.0 to 145.102.5.255
- Collected
IPtoASN maps this address interval to AS1101. An interval is not necessarily a BGP prefix or registered allocation. It does not establish geolocation or ownership.
IP geolocation
- Country
- The Netherlands
- City
- Utrecht
- Region
- Utrecht
- Postal code
- Not supplied
- Timezone
- Europe/
Amsterdam - Local time
- Approximate coordinates
- 52.105, 5.113
Network-level coordinates do not identify a precise user or device location. How geolocation works
VPN, proxy and network signals
0/ 100
- Threat evidence
- 0No threat-feed match
- Anonymity context
- 0Policy points
Score = max(threat, anonymity). Overlapping signals are not added.
Attribution and snapshot details
- DROP IPv4Current at lookup
- Checked:
Valid until: - ASN-DROPCurrent at lookup
- Checked:
Valid until:
© 2026 The Spamhaus Project SLU. DROP · Attribution and snapshot details
ipquery-risk-v2A low score is not proof that an address is safe. This assessment describes an address, not a person or a request.
View scoring methodASN and network operator
AS1101 profile- Organization
- SURF B.V.
- ASN domain
- as1101.net
- Operator type
- Academic
The ASN organization can differ from the organization using an individual address.
Network registration
- Matching record range
- 145.102.4.0/23
- Registered network name
- Orkaan-NET
- Registered network block
- 145.102.4.0/23
- Registration source
- RIPENCC WHOIS
- Company
- Onweer Service Provider
- Usage type
- business
- Company website
- surf.nl
Registration and company fields describe this source record. They can differ from the ASN operator and from live routing announcements.
Abuse contact
- Contact name
- Wim Biemolt
- Published contact network
- 145.102.4.0/23
- Abuse email
- cert@surfcert.nl
- Phone
- +31 88 7873000
- Postal address
- SURF bv, attn. SURFcert, P.O.Box 19035, NL-3501 DA, Utrecht, Netherlands
- Contact country
- The Netherlands
This contact is attached to the network record. Include the source IP, UTC timestamps and relevant logs when reporting abuse.
Actual API response
Open JSON{
"ip": "145.102.4.0",
"isp": {
"asn": "AS1101",
"org": "SURF B.V.",
"isp": "SURF B.V."
},
"location": {
"country": "The Netherlands",
"country_code": "NL",
"city": "Utrecht",
"state": "Utrecht",
"zipcode": "",
"latitude": 52.10508159981333,
"longitude": 5.11338200912814,
"timezone": "Europe/Amsterdam",
"localtime": "2026-11-05T09:57:15"
},
"risk": {
"is_mobile": false,
"is_vpn": false,
"is_tor": false,
"is_proxy": false,
"is_datacenter": false,
"risk_score": 0,
"assessment": {
"version": "ipquery-risk-v2",
"level": "none",
"threat_score": 0,
"anonymity_score": 0,
"coverage": "fresh",
"reasons": [],
"sources": [
{
"id": "spamhaus_drop_v4",
"status": "fresh",
"checked_at": "2026-11-05T04:15:06Z",
"expires_at": "2026-11-06T06:15:06Z",
"published_at": "2026-11-04T18:44:02Z"
},
{
"id": "spamhaus_asndrop",
"status": "fresh",
"checked_at": "2026-11-05T04:15:06Z",
"expires_at": "2026-11-06T06:15:06Z",
"published_at": "2026-11-05T03:44:02Z"
}
]
}
}
}