2001:468:501::

Boulder · United States · University of Colorado at Boulder

Registration lookup IPv6 address formats

Autonomous system: AS104
Country: US
Risk score: Not a probability

IP address summary

IP address: 2001:468:501::
ASN: AS104
Network operator: University of Colorado at Boulder
ISP: University of Colorado at Boulder
Containing network profile: 2001:468::/32
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: AS104
Source label: COLORADO-AS - University of Colorado at Boulder
Reference interval: 2001:468:501:: to 2001:468:501:ffff:ffff:ffff:ffff:ffff
Collected: 2026-11-02

IPtoASN maps this address interval to AS104. 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: United States
City: Boulder
Region: Colorado
Postal code: Not supplied
Timezone: America/Denver
Local time: 2026-11-03 04:29:02
Approximate coordinates: 40.064, -105.223

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

Risk score: 0

A low score is not proof that an address is safe.

Read exact field definitions

ASN and network operator

AS104 profile

Organization: University of Colorado at Boulder
ASN domain: colorado.edu
Operator type: Academic

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

Network registration

Matching record range: 2001:468:501::/48
Registered network name: NET-UCAR-V6
Registered network block: 2001:468:500::/40
Registration source: ARIN RDAP
Company: University Corporation for Atmospheric Research
Usage type: business
Company website: ucar.edu

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
Published contact network: 2001:468:500::/40
Abuse email: abuse@ucar.edu
Phone: +1-307-996-4300
Postal address: 1850 Table Mesa Drive, Boulder, CO, 80305, United States
Contact country: United States

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

2001:468:501:: · live response

{
  "ip": "2001:468:501::",
  "isp": {
    "asn": "AS104",
    "org": "University of Colorado at Boulder",
    "isp": "University of Colorado at Boulder"
  },
  "location": {
    "country": "United States",
    "country_code": "US",
    "city": "Boulder",
    "state": "Colorado",
    "zipcode": "",
    "latitude": 40.063951599813336,
    "longitude": -105.22313799087185,
    "timezone": "America/Denver",
    "localtime": "2026-11-03T04:29:02"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}