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Organization

Harvard University

IPv4 addresses
211,712
CIDR ranges
10
Category
academic
BGP prefixes announced
18

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

71/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Academic allocation +6
  • Trust score 71 / 100

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

About Harvard University

Harvard University is a private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636, and named Harvard College in 1639 in honor of its first benefactor, Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States.

Founded
1636
Headquarters
Cambridge
Industry
higher education
Parent
President and Fellows of Harvard College

Operates 1 network present at 2 internet exchanges with a selective peering policy.

Countries served by Harvard University

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Harvard University

ASNNameIPsPrefixesCountry
AS1742 Harvard University 203.5K 9 US
AS10578 Harvard University 8.2K 1 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
128.103.0.0/16 65.5K
25.1%
AS1742 US Massachusetts Melrose
131.142.0.0/16 65.5K
6.6%
AS1742 US Massachusetts Cambridge
140.247.0.0/16 65.5K
65.0%
AS1742 US Massachusetts Cambridge
18.2.192.0/19 8.2K
0.0%
AS10578 US — —
65.112.0.0/20 4.1K
7.3%
AS1742 US Massachusetts Cambridge
67.134.204.0/22 1.0K
95.2%
AS1742 US Massachusetts Cambridge
199.94.60.0/22 1.0K
3.0%
AS1742 US — —
192.5.66.0/24 256
0.8%
AS1742 US — —
192.54.223.0/24 256
9.0%
AS1742 US — —
192.131.102.0/24 256
0.0%
AS1742 US — —

Frequently Asked Questions

How many IP addresses does Harvard University own?

Harvard University controls 211.7K IPv4 addresses distributed across 10 CIDR ranges. The organization is registered in United States.

What ASNs does Harvard University operate?

Harvard University operates 2 Autonomous Systems. Each ASN represents an independently routed network that Harvard University manages for internet traffic delivery.

What type of organization is Harvard University?

Harvard University is categorized as academic. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-11-11 20:09:06 UTC
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