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Organization

Charles River Operation

IPv4 addresses
23,296
CIDR ranges
51
Category
unknown
BGP prefixes announced
62

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.

65/100
Moderate
How this score is built

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

Countries served by Charles River Operation

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

ASNs owned by Charles River Operation

ASNNameIPsPrefixesCountry
AS64249 Charles River Operation 23.3K 51 US

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
207.32.128.0/19 8.2K
0.0%
AS64249 US New York New York
74.118.68.0/22 1.0K
0.0%
AS64249 US — —
45.67.142.0/23 512
0.0%
AS64249 US Virginia Reston
52.124.20.0/23 512
0.0%
AS64249 US — —
63.246.156.0/23 512
0.0%
AS64249 US California Los Angeles
94.154.168.0/23 512
0.0%
AS64249 US California Los Angeles
154.3.236.0/23 512
4.1%
AS64249 US Massachusetts Waltham
198.145.142.0/23 512
0.0%
AS64249 US Massachusetts Boston
5.182.51.0/24 256
8.2%
AS64249 US Massachusetts Boston
5.182.199.0/24 256
0.0%
AS64249 US — —
31.132.54.0/24 256
0.0%
AS64249 US Massachusetts Boston
38.124.1.0/24 256
3.9%
AS64249 US Massachusetts Waltham
38.146.55.0/24 256
3.1%
AS64249 US — —
38.242.7.0/24 256
10.5%
AS64249 US Massachusetts Boston
38.242.12.0/24 256
8.2%
AS64249 US Massachusetts Waltham
38.242.18.0/24 256
7.4%
AS64249 US Massachusetts Waltham
38.242.24.0/24 256
5.1%
AS64249 US Massachusetts Waltham
44.32.53.0/24 256
0.0%
AS64249 US — —
44.104.110.0/24 256
0.0%
AS64249 US — —
45.10.23.0/24 256
19.9%
AS64249 DE — —
45.58.211.0/24 256
0.0%
AS64249 US Massachusetts Boston
45.67.144.0/24 256
0.0%
AS64249 US Virginia Reston
63.246.128.0/24 256
0.0%
AS64249 US New York New York
63.251.142.0/24 256
0.0%
AS64249 US — —
66.150.192.0/24 256
0.0%
AS64249 US — —
66.150.196.0/24 256
2.3%
AS64249 US — —
66.150.198.0/24 256
0.8%
AS64249 US — —
67.22.61.0/24 256
0.0%
AS64249 US Utah Lehi
67.22.62.0/24 256
0.0%
AS64249 US Massachusetts Boston
79.98.181.0/24 256
0.0%
AS64249 US California Los Angeles
79.98.182.0/24 256
0.0%
AS64249 US Massachusetts Boston
83.143.107.0/24 256
14.8%
AS64249 SC — —
92.249.28.0/24 256
0.0%
AS64249 US California Los Angeles
94.154.176.0/24 256
0.0%
AS64249 US California Los Angeles
94.154.179.0/24 256
0.0%
AS64249 US California Los Angeles
144.86.187.0/24 256
0.0%
AS64249 US — —
147.189.137.0/24 256
32.8%
AS64249 US Massachusetts Boston
154.3.45.0/24 256
3.9%
AS64249 US Massachusetts Waltham
154.3.129.0/24 256
0.8%
AS64249 US Massachusetts Waltham
154.3.222.0/24 256
1.2%
AS64249 US Massachusetts Waltham
154.9.0.0/24 256
3.1%
AS64249 US Massachusetts Waltham
154.9.154.0/24 256
1.6%
AS64249 US Massachusetts Waltham
154.12.2.0/24 256
1.6%
AS64249 US Massachusetts Waltham
154.12.6.0/24 256
0.0%
AS64249 US Massachusetts Waltham
154.13.0.0/24 256
0.8%
AS64249 US Massachusetts Waltham
154.39.0.0/24 256
0.0%
AS64249 US Massachusetts Waltham
154.39.2.0/24 256
0.4%
AS64249 US Massachusetts Waltham
192.203.175.0/24 256
28.9%
AS64249 US — —
193.148.94.0/24 256
0.0%
AS64249 US California Los Angeles
198.145.141.0/24 256
0.0%
AS64249 US Massachusetts Boston
206.197.231.0/24 256
2.0%
AS64249 US — —

Frequently Asked Questions

How many IP addresses does Charles River Operation own?

Charles River Operation controls 23.3K IPv4 addresses distributed across 51 CIDR ranges. The organization is registered in United States.

What ASNs does Charles River Operation operate?

Charles River Operation operates 1 Autonomous System. Each ASN represents an independently routed network that Charles River Operation manages for internet traffic delivery.

What type of organization is Charles River Operation?

Charles River Operation is categorized as unknown. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-11-13 09:39:05 UTC
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