66.59.221.0/24

AS400448 · Town of Castle Rock

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Summary

Country	United States
Domain	castlerock-township.com
ASN	AS400448
Registry	ARIN
ID	TOCR-EDGE

WHOIS Details

NetHandle:      NET-66-59-221-0-1
OrgID:          TCR-144
Parent:         NET-66-0-0-0-0
NetName:        TOCR-EDGE
NetRange:       66.59.221.0 - 66.59.221.255
NetType:        allocation
RegDate:        2022-02-04
Updated:        2022-02-04
Source:         ARIN


OrgID:          TCR-144
OrgName:        Town of Castle Rock
CanAllocate:    
Street:         100 N. Wilcox St
City:           CASTLE ROCK
State/Prov:     CO
Country:        US
PostalCode:     80104
RegDate:        2021-10-28
Updated:        2021-10-28
OrgAdminHandle: NETWO9555-ARIN
OrgTechHandle:  NETWO9555-ARIN
OrgAbuseHandle: NETWO9555-ARIN
Source:         ARIN


POCHandle:      NETWO9555-ARIN
IsRole:         Y
LastName:       Network Team
FirstName:      
Street:         100 N wilcox st.
City:           CASTLE ROCK
State/Prov:     CO
Country:        US
PostalCode:     80104
RegDate:        2021-10-04
Updated:        2026-01-07
OfficePhone:    +1-720-733-3594
Mailbox:        networkinfrastructure@crgov.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 66.59.0.0/16

Range	ASN	Company	Num of IPs
66.59.224.0/19	AS11123	Ultimate Internet Access, Inc	8,192
66.59.0.0/19	AS16509	J2 Global Ventures, LLC	8,192
66.59.48.0/20	AS14618	RingSquared CC	4,096
66.59.32.0/20	AS14265	TPx Communications	4,096
66.59.48.0/20	AS22301	RingSquared CC	4,096
66.59.64.0/20	AS4906	Frontline Communications	4,096
66.59.196.0/22	AS13649	VIRMACHVPS	1,024
66.59.92.0/22	AS46867	Sebastian	1,024
66.59.218.0/24	AS400077	Pueblo City-County Library District	256
66.59.219.0/24	AS400364	DSLD HOMES, LLC	256
66.59.64.0/24	AS4906	Frontline Communications	256
66.59.65.0/24	AS4906	Frontline Communications	256
66.59.67.0/24	AS4906	Frontline Communications	256
66.59.68.0/24	AS4906	Frontline Communications	256
66.59.69.0/24	AS4906	Frontline Communications	256
66.59.70.0/24	AS4906	Frontline Communications	256
66.59.71.0/24	AS4906	Frontline Communications	256
66.59.72.0/24	AS4906	Frontline Communications	256
66.59.73.0/24	AS4906	Frontline Communications	256
66.59.74.0/24	AS4906	Frontline Communications	256
66.59.75.0/24	AS4906	Frontline Communications	256
66.59.76.0/24	AS4906	Frontline.net	256
66.59.194.0/24	AS62594	PDT Partners LLC	256
66.59.121.0/24	AS11590	RASER Inc	256
66.59.192.0/24	AS14020	Longwood Gardens Inc.	256
66.59.216.0/24	AS14434	Love City Community Network	256
66.59.193.0/24	AS23223	Total Quality Logistics LLC	256
66.59.217.0/24	AS31883	Thornburg Investment Management Inc.	256
66.59.223.0/24	AS397283	RocketNode Inc	256
66.59.220.0/24	AS399978	City of Franklin	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
66.59.221.43	AS400448 Town of Castle Rock	`2.81ms` from Denver, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
76.129.27.8	AS7922 Comcast Cable Communications, LLC	`11.10ms` from Atlanta, US
114.254.119.248	AS4808 China Unicom Beijing Province Network	`3.90ms` from Beijing, CN
97.150.74.184	AS6167 Verizon Business	`14.89ms` from Dallas, US
104.41.203.72	AS8075 Microsoft Corporation	`0.24ms` from Dublin, IE
136.34.116.184	AS16591 Google Fiber Inc.	`0.57ms` from Kansas City, US
76.166.8.40	AS20001 Charter Communications Inc	`1.10ms` from Los Angeles, US
153.136.244.72	AS4713 NTT DOCOMO BUSINESS,Inc.	`12.31ms` from Osaka, JP
179.209.42.40	AS28573 Claro NXT Telecomunicacoes Ltda	`1.17ms` from Osasco, BR
70.15.83.72	AS3737 PenTeleData Inc.	`12.59ms` from Philadelphia, US
187.148.2.248	AS8151 UNINET	`8.37ms` from Santiago de Queretaro, MX
113.199.87.136	AS17608 ABN	`1.61ms` from Seoul, KR
149.156.237.8	AS8267 Academic Computer Centre CYFRONET AGH	`9.77ms` from Warsaw, PL
99.87.247.232	AS7018 AT&T Enterprises, LLC	`1.70ms` from Atlanta, US
86.121.191.152	AS8708 DIGI ROMANIA S.A.	`0.93ms` from Bucharest, RO
34.253.130.248	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
31.41.34.104	AS210000 TwentyWAN Networks	`0.24ms` from Fremont, US
107.146.152.200	AS33363 Charter Communications, Inc	`11.28ms` from Murfreesboro, US
182.164.227.152	AS17511 OPTAGE Inc.	`2.62ms` from Osaka, JP
104.107.182.72	AS16625 Akamai Technologies, Inc.	`0.23ms` from Pittsburgh, US
128.95.234.8	AS73 University of Washington	`0.49ms` from Seattle, US
110.149.198.168	AS1221 Telstra Limited	`8.76ms` from Sydney, AU
116.179.201.24	AS4837 CHINA UNICOM China169 Backbone	`7.25ms` from Taiyuan, CN
126.11.75.168	AS17676 SoftBank Corp.	`4.28ms` from Tokyo, JP
20.122.194.104	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
36.251.195.248	AS4837 CHINA UNICOM China169 Backbone	`8.14ms` from Fuzhou, CN

Traceroute

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

traceroute -a -n -q1 -f3 66.59.221.25

traceroute to 66.59.221.25 (66.59.221.25): 64 hops max, 52 byte packets

3 [AS174] 154.24.100.141 0.895 ms

4 [AS174] 154.54.10.2 0.854 ms

5 *

6 [AS3356] 209.245.2.182 2.827 ms

7 *

8 [AS400448] 66.59.221.25 2.994 ms

Measurement taken from

IPinfo ProbeNet in Denver, US

On March 13th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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