2600:400::

Washington · United States · DEPARTMENT OF HOMELAND SECURITY

Registration lookup IPv6 address formats

Autonomous system: AS15147
Country: US
Risk score: Not a probability

IP address summary

IP address: 2600:400::
ASN: AS15147
Network operator: DEPARTMENT OF HOMELAND SECURITY
ISP: DEPARTMENT OF HOMELAND SECURITY
Containing network profile: No indexed aggregate
Operator category: Government

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

Public ASN reference

Reference ASN: AS15147
Source label: DHSINETNOC - DEPARTMENT OF HOMELAND SECURITY
Reference interval: 2600:400:: to 2600:400:ffff:ffff:ffff:ffff:ffff:ffff
Collected: 2026-11-02

IPtoASN maps this address interval to AS15147. 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: Washington
Region: District of Columbia
Postal code: Not supplied
Timezone: America/New_York
Local time: 2026-11-03 17:31:28
Approximate coordinates: 38.909, -77.046

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

AS15147 profile

Organization: DEPARTMENT OF HOMELAND SECURITY
ASN domain: dhs.gov
Operator type: Government

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

Network registration

Matching record range: 2600:400:: – 2600:400:26ff:ffff:ffff:ffff:ffff:ffff
Registered network name: ONENET
Registered network block: 2600:400::/32
Registration source: ARIN RDAP
Company: DEPARTMENT OF HOMELAND SECURITY
Usage type: business
Company website: dhs.gov

Registration and company fields describe this source record. They can differ from the ASN operator and from live routing announcements.

Abuse contact

Contact name: DHS-NOC
Published contact network: 2600:400::/32
Abuse email: DHSNOSCInfrastructureNetworkManagementTools@hq.dhs.gov
Phone: +1-877-347-1638;ext1
Postal address: 245 Murray Lane, SW, Washington, DC, 20528, 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

2600:400:: · live response

{
  "ip": "2600:400::",
  "isp": {
    "asn": "AS15147",
    "org": "DEPARTMENT OF HOMELAND SECURITY",
    "isp": "DEPARTMENT OF HOMELAND SECURITY"
  },
  "location": {
    "country": "United States",
    "country_code": "US",
    "city": "Washington",
    "state": "District of Columbia",
    "zipcode": "",
    "latitude": 38.909351599813334,
    "longitude": -77.04573799087186,
    "timezone": "America/New_York",
    "localtime": "2026-11-03T17:31:28"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}