2001:428:b21::

Monroe · United States · CenturyLink Communications, LLC

Registration lookup IPv6 address formats

Autonomous system: AS4015
Country: US
Risk score: Not a probability

IP address summary

IP address: 2001:428:b21::
ASN: AS4015
Network operator: CenturyLink Communications, LLC
ISP: CenturyLink Communications, LLC
Containing network profile: 2001:428::/32
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: AS4015
Source label: CENTURYLINK-LEGACY-QWEST-SPA-OMAHA - CenturyLink Communications, LLC
Reference interval: 2001:428:b21:: to 2001:428:b21:ffff:ffff:ffff:ffff:ffff
Collected: 2026-11-02

IPtoASN maps this address interval to AS4015. 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: Monroe
Region: Louisiana
Postal code: Not supplied
Timezone: America/Chicago
Local time: 2026-11-03 04:50:03
Approximate coordinates: 32.543, -92.115

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

AS4015 profile

Organization: CenturyLink Communications, LLC
ASN domain: centurylink.com
Operator type: Business Broadband

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

Network registration

Matching record range: 2001:428:b21::/48
Registered network name: QWEST-IPV6-1
Registered network block: 2001:428::/32
Registration source: ARIN RDAP
Company: CenturyLink Communications, LLC
Usage type: business
Company website: centurylink.com

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

Abuse contact

Contact name: Centurylink Abuse Desk
Published contact network: 2001:428::/32
Abuse email: abuse@aup.lumen.com
Phone: +1-877-886-6515
Postal address: 100 CENTURYLINK DR, Monroe, LA, 71203, 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

2001:428:b21:: · live response

{
  "ip": "2001:428:b21::",
  "isp": {
    "asn": "AS4015",
    "org": "CenturyLink Communications, LLC",
    "isp": "CenturyLink Communications, LLC"
  },
  "location": {
    "country": "United States",
    "country_code": "US",
    "city": "Monroe",
    "state": "Louisiana",
    "zipcode": "",
    "latitude": 32.54285159981333,
    "longitude": -92.11493799087185,
    "timezone": "America/Chicago",
    "localtime": "2026-11-03T04:50:03"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}