37.1.104.0

Haarlem · The Netherlands · onecentral B.V.

Autonomous system: AS49250
Country: NL
Legacy classification score: Not a probability

IP address summary

IP address: 37.1.104.0
ASN: AS49250
Network operator: onecentral B.V.
ISP: onecentral B.V.
Containing network profile: 37.1.0.0/16
Operator category: Business Broadband

The containing profile is the nearest published aggregate. It is not a registry allocation or BGP ownership record.

Public ASN reference

Reference ASN: AS49250
Source label: onecentral onecentral B.V.
Reference interval: 37.1.104.0 to 37.1.111.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS49250. An interval is not necessarily a BGP prefix or registered allocation. It does not establish geolocation or ownership.

IPtoASN source Reference methodology

IP geolocation

World map with country boundaries — Approximate network location; not a device positionNatural Earth map data

Country: The Netherlands
City: Haarlem
Region: North Holland
Postal code: Not supplied
Timezone: Europe/Amsterdam
Local time: 2026-11-09 08:11:43
Approximate coordinates: 52.395, 4.628

Network-level coordinates do not identify a precise user or device location. How geolocation works

VPN, proxy and network signals

VPNNot listed

ProxyNot listed

TorNot classified

HostingNot classified

MobileNot classified

Legacy classification score: 0

This response predates the evidence-based model.

Read exact field definitions

ASN and network operator

AS49250 profile

Organization: onecentral B.V.
ASN domain: onecentral.nl
Operator type: Business Broadband

The ASN organization can differ from the organization using an individual address.

Network registration

Matching record range: 37.1.104.0/23
Registered network name: BROADBAND_AMS1_NETWORK
Registered network block: 37.1.104.0/23
Registration source: RIPENCC WHOIS
Company: onecentral B.V.
Usage type: residential
Company website: onecentralyieldergroup.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: Abuse NOC
Published contact network: 37.1.104.0/23
Abuse email: abuse@onecentral.net
Phone: +31881118111
Postal address: onecentral B.V. Hoofdweg 20 3067 GH Rotterdam 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

37.1.104.0 · live response

{
  "ip": "37.1.104.0",
  "isp": {
    "asn": "AS49250",
    "org": "onecentral B.V.",
    "isp": "onecentral B.V."
  },
  "location": {
    "country": "The Netherlands",
    "country_code": "NL",
    "city": "Haarlem",
    "state": "North Holland",
    "zipcode": "",
    "latitude": 52.395091599813334,
    "longitude": 4.627992009128139,
    "timezone": "Europe/Amsterdam",
    "localtime": "2026-11-09T08:11:43"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}