AS64249

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Summary

IP address summary information
Name	Charles River Operation
Country	United States
Website	host.io/endoffice.com·endoffice.com
Hosted domains	673
IPv4 addresses	22,272
IPv6 addresses	8.45 × 10²⁸
ASN type	Hosting
Registry	ARIN
Allocated	10 years ago on Apr 8, 2016
Updated	10 years ago on Apr 8, 2016

Ranking

#4,140

Overall rank

among 74,696 networks

Traffic

#4,125

Infrastructure

#3,610

#740inUnited States

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

United States
100%

Held location over 90 days: 93%
Held location over 1 year: 97%
Median days between moves: 147 days
Geolocation scope: City

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A weak daily rhythm — a blend of human and always-on traffic (carrier-NAT, mobile, or proxy-heavy).

Mon

IP Ranges

Netblock	Company	Num of IPs
207.32.128.0/19	Charles River Operation	8,192
52.124.20.0/23	Charles River Operation	512
94.154.168.0/23	Charles River Operation	512
5.182.51.0/24	Charles River Operation	256
5.182.199.0/24	Charles River Operation	256
31.132.54.0/24	Charles River Operation	256
38.124.1.0/24	Charles River Operation	256
38.242.12.0/24	Charles River Operation	256
38.242.18.0/24	Charles River Operation	256
38.242.24.0/24	Charles River Operation	256

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 673 domain names hosted across 237 IP addresses on this ASN.

IP Address	Domain	Count
154.3.237.116		48
154.3.237.18		41
154.12.2.114		39
154.12.2.90		35
38.242.12.200		28

Places

Peers

There are 5 peers for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS1239	Cogent Communications, LLC
AS26824	VLUZNET
AS27552	TowardEX Technologies International, Inc.
AS395584	Data Management

Upstreams

There are 3 upstreams for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS27552	TowardEX Technologies International, Inc.
AS395584	Data Management

Downstreams

There are 1 downstreams for this ASN.

ASN	Name	Rank
AS26824	VLUZNET

Pingable IPs

90 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more

IP Address	ASN	Details
207.32.136.192 Ping	AS64249Charles River Operation	0.36ms from Boston, US
45.67.144.145 Ping	AS64249Charles River Operation	0.37ms from Boston, US
45.10.23.1 Ping	AS64249Charles River Operation	0.21ms from Boston, US
94.154.168.226 Ping	AS64249Charles River Operation	0.37ms from Boston, US
207.32.141.91 Ping	AS64249Charles River Operation	0.37ms from Boston, US
207.32.137.169 Ping	AS64249Charles River Operation	0.37ms from Boston, US
154.3.236.122 Ping	AS64249Charles River Operation	0.34ms from Boston, US
63.246.157.235 Ping	AS64249Charles River Operation	0.37ms from Boston, US
207.32.134.177 Ping	AS64249Charles River Operation	0.36ms from Boston, US
63.246.128.150 Ping	AS64249Charles River Operation	0.35ms from Boston, US

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS64249


154.9.154.50	Waltham, United States
154.12.6.38	Waltham, United States
154.3.222.183	Waltham, United States
154.12.6.170	Waltham, United States
52.124.20.254	Boston, United States
154.12.6.154	Waltham, United States
66.150.196.50	Boston, United States
38.242.24.90	Waltham, United States
154.12.6.180	Waltham, United States
38.242.12.22	Waltham, United States

Important routers in AS64249

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.Traceroute →

$ traceroute -a -n -q1 -f5 79.98.182.14

traceroute to 79.98.182.14 (79.98.182.14): 64 hops max, 52 byte packets

5 [AS3356] 4.31.155.202 73.504 ms

6 [AS27552] 198.160.62.4 73.169 ms

7 [AS27552] 198.160.62.203 74.207 ms

8 [AS27552] 185.134.180.86 73.651 ms

9 [AS64249] 154.3.236.202 73.028 ms

10 [AS64249] 79.98.182.14 73.121 ms

Measurement taken from

IPinfo ProbeNet in Fremont, US

On September 17, 2026

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS64249 at robtex.

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AS64249

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS64249

Important routers in AS64249

Traceroute

Related Networks

AS10827

AS16774

AS20383

AS32605

AS36366

What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

Important routers in AS64249

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

IP Ranges

AS10827

AS16774

AS20383

AS32605

AS36366

AS393575