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Harvard University logo

Harvard University

🇺🇸 United States

The ASN (Autonomous System Number) is a unique number assigned to an autonomous system, used to identify the network. ASN

AS1742

The RIR (Regional Internet Registry) is the organization responsible for managing ASN allocation in a specific region. RIR

ARIN

The type of ASN. Can be business, isp, hosting, government, or education. Type

education

Website

harvard.edu

Related ASNs have the same name or website. Related

AS10578 AS40127 AS32318

IPv4 CIDRs

14

IPv4 addresses

204800

IPv6 CIDRs

4

IPv6 addresses

285278209

Upstreams are networks that provide transit to this ASN. Upstreams (5)

AS10578 Harvard University logo Harvard University
AS396450 -
AS174 Cogent Communications logo Cogent Communications
AS3356 Lumen (Level 3) logo Lumen (Level 3)
AS11164 Internet2 I2PX logo Internet2 I2PX

Downstreams are networks that receive transit from this ASN. Downstreams (2)

AS40127 Longwood Medical and Academic Area (LMA) logo Longwood Medical and Academic Area (LMA)
AS13315 Harvard Business School logo Harvard Business School

Peers are networks that exchange traffic with this ASN. Peers (8)

AS3356 Lumen (Level 3) logo Lumen (Level 3)
AS13315 Harvard Business School logo Harvard Business School
AS11164 Internet2 I2PX logo Internet2 I2PX
AS40127 Longwood Medical and Academic Area (LMA) logo Longwood Medical and Academic Area (LMA)
AS10578 Harvard University logo Harvard University
View more
AS174 Cogent Communications logo Cogent Communications
AS396450 -
AS11537 Internet2 logo Internet2

Location

City

Cambridge

Country

🇺🇸 United States

Coordinates

40.28195, -100.16569

Timezone

America/Chicago

We transparently share the different sources used to determine a likely location for this IP address. Source

whois

Abuse

Email

abuse@harvard.edu

Phone

+1-617-495-3574

Query via the API View API documentation

curl iplib.re/AS1742

JSON response

{
  "network": {
    "rir": "ARIN",
    "asn": 1742,
    "name": "Harvard University",
    "type": "education",
    "website": "harvard.edu",
    "related": [
      10578,
      40127,
      32318
    ]
  },
  "connectivity": {
    "upstreams": [
      10578,
      396450,
      174,
      3356,
      11164
    ],
    "downstreams": [
      40127,
      13315
    ],
    "peers": [
      3356,
      13315,
      11164,
      40127,
      10578
    ]
  },
  "location": {
    "latitude": 40.28195,
    "longitude": -100.16569,
    "country": "US",
    "city": "Cambridge",
    "source": "whois",
    "timezone": "America/Chicago"
  },
  "abuse": {
    "email": "abuse@harvard.edu",
    "phone": "+1-617-495-3574"
  },
  "ipv4": {
    "ranges": [
      "65.112.0.0/20",
      "67.134.204.0/22",
      "128.103.0.0/16",
      "128.103.204.0/24",
      "131.142.0.0/16"
    ],
    "cidrs": 14,
    "ips": 204800
  },
  "ipv6": {
    "ranges": [
      "2602:fca9::/36",
      "2607:fb60::/32",
      "2607:fb60:2400::/40",
      "2620:32:8000::/48"
    ],
    "cidrs": 4,
    "ips": 285278209
  }
}