38.75.133.0

Chicago · United States · American College of Surgeons

Autonomous system: AS54583
Country: US
Risk score

IP address summary

IP address: 38.75.133.0
ASN: AS54583
Network operator: American College of Surgeons
ISP: American College of Surgeons
Containing network profile: 38.75.0.0/16
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: AS54583
Source label: 54583 - American College of Surgeons
Reference interval: 38.75.133.0 to 38.75.133.255
Collected: 2026-11-02

IPtoASN maps this address interval to AS54583. 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: Chicago
Region: Illinois
Postal code: Not supplied
Timezone: America/Chicago
Local time: 2026-11-14 17:14:34
Approximate coordinates: 41.864, -87.659

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 / 100

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

Read exact field definitions

ASN and network operator

AS54583 profile

Organization: American College of Surgeons
ASN domain: facs.org
Operator type: Academic

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

Network registration

Matching record range: 38.75.133.0/24
Registered network name: NET4-264B850018
Registered network block: 38.75.133.0/24
Registration source: ARIN RWHOIS
Company: American College Of Surgeons
Usage type: business

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

Abuse contact

Contact name: Cogent Abuse
Published contact network: 38.75.133.0/24
Abuse email: abuse@cogentco.com
Phone: +1-877-875-4311
Postal address: 2450 N street, NW, Washington, DC, 20037, 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

38.75.133.0 · live response

{
  "ip": "38.75.133.0",
  "isp": {
    "asn": "AS54583",
    "org": "American College of Surgeons",
    "isp": "American College of Surgeons"
  },
  "location": {
    "country": "United States",
    "country_code": "US",
    "city": "Chicago",
    "state": "Illinois",
    "zipcode": "",
    "latitude": 41.86428159981333,
    "longitude": -87.65888799087185,
    "timezone": "America/Chicago",
    "localtime": "2026-11-14T17:14:34"
  },
  "risk": {
    "is_mobile": false,
    "is_vpn": false,
    "is_tor": false,
    "is_proxy": false,
    "is_datacenter": false,
    "risk_score": 0
  }
}