204.228.64.0/18

AS209 · CenturyLink Communications, LLC

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Summary

Country	United States
Domain	adams12.org
ASN	AS209
Registry	ARIN
ID	ADAMS-12

WHOIS Details

NetHandle:      NET-204-228-89-0-1
OrgID:          AFSS-11-Z
Parent:         NET-204-0-0-0-0
NetName:        ADAMS-12
NetRange:       204.228.89.0 - 204.228.127.255
NetType:        allocation
RegDate:        1995-01-12
Updated:        2021-12-14
Source:         ARIN


OrgID:          AFSS-11-Z
OrgName:        Adams 12
CanAllocate:    
Street:         1500 E 128th Ave
City:           Thornton
State/Prov:     CO
Country:        US
PostalCode:     80241-2601
RegDate:        2018-06-20
Updated:        2022-11-18
OrgAdminHandle: ADARI-ARIN
OrgTechHandle:  ADARI-ARIN
OrgAbuseHandle: ADARI-ARIN
OrgNOCHandle:   INFRA224-ARIN
Source:         ARIN


POCHandle:      ADARI-ARIN
IsRole:         Y
LastName:       AD12ARINAdmin
FirstName:      
Street:         1500 E 128th Ave
City:           Thornton
State/Prov:     CO
Country:        US
PostalCode:     80241-2601
RegDate:        2014-11-03
Updated:        2025-12-19
OfficePhone:    +1-720-972-4110
OfficePhone:    +1-720-972-6029
Mailbox:        [email protected]
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      INFRA224-ARIN
IsRole:         Y
LastName:       Infrastructure-NOC
FirstName:      
Street:         1500 E 128 Av
City:           Thornton
State/Prov:     CO
Country:        US
PostalCode:     80241
RegDate:        2022-11-18
Updated:        2024-11-26
OfficePhone:    +1-720-972-4120
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 204.228.64.0/18

Range	ASN	Company	Num of IPs
204.228.81.0/24	AS33652	County of Grand, East Grand School District #2	256
204.228.64.0/24	AS32920	ITHAKA Harbors, Inc.	256
204.228.80.0/24	AS104	University of Colorado Boulder	256
204.228.68.0/22	AS62671	ECS-Infrastructure	1,024

Nearby Ranges

BGP prefixes that overlap with 204.228.0.0/16

Range	ASN	Company	Num of IPs
204.228.128.0/19	AS6315	XMission, L.C.	8,192
204.228.68.0/22	AS62671	ECS-Infrastructure	1,024
204.228.80.0/24	AS104	University of Colorado Boulder	256
204.228.248.0/24	AS14230	Regular Guy Enterprises	256
204.228.64.0/24	AS32920	ITHAKA Harbors, Inc.	256
204.228.81.0/24	AS33652	County of Grand, East Grand School District #2	256

Hosted domains

There are 2 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
204.228.71.135	AS62671 ECS-Infrastructure	`0.57ms` from Denver, US
204.228.68.114	AS62671 ECS-Infrastructure	`0.62ms` from Denver, US
204.228.64.2	AS32920 ITHAKA Harbors, Inc.	`1.37ms` from New York City, US
204.228.104.12	AS30136 Adams 12	`0.85ms` from Denver, US
204.228.70.23	AS62671 ECS-Infrastructure	`0.65ms` from Denver, US
204.228.69.9	AS62671 ECS-Infrastructure	`0.94ms` 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
150.136.99.34	AS31898 Oracle Corporation	`0.35ms` from Ashburn, US
69.61.58.226	AS22653 Cyber Wurx LLC	`0.33ms` from Atlanta, US
36.89.32.2	AS7713 PT Telekomunikasi Indonesia	`0.91ms` from Batam, ID
103.117.155.34	AS59162 U.P. COMMUNICATION SERVICES PVT LTD	`4.58ms` from Delhi, IN
184.164.97.194	AS10835 Visionary Communications LLC	`7.14ms` from Denver, US
187.139.46.2	AS8151 UNINET	`6.09ms` from Guadalajara, MX
115.18.160.226	AS4766 Korea Telecom	`7.16ms` from Incheon, KR
77.98.9.210	AS5089 Virgin Media Limited	`10.42ms` from London, GB
97.164.167.66	AS6167 Verizon Business	`7.55ms` from Miami, US
131.212.45.226	AS217 University of Minnesota	`4.17ms` from Minneapolis, US
143.244.148.114	AS14061 DigitalOcean, LLC	`0.21ms` from New York City, US
220.153.102.34	AS18081 Kintetsu Cable Network Co., Ltd.	`1.67ms` from Osaka, JP
202.222.54.226	AS18121 Ishikawa Computer Center Co.,LTD.	`5.45ms` from Osaka, JP
83.202.169.210	AS3215 Orange S.A.	`3.12ms` from Paris, FR
87.21.182.34	AS3269 Telecom Italia S.p.A.	`4.16ms` from Rome, IT
222.115.203.114	AS4766 Korea Telecom	`3.21ms` from Seoul, KR
182.23.156.98	AS4628 Pacific Internet Pte Ltd	`1.09ms` from Singapore, SG
175.133.123.98	AS2516 KDDI CORPORATION	`0.73ms` from Tokyo, JP
122.222.239.146	AS2519 ARTERIA Networks Corporation	`2.52ms` from Tokyo, JP
20.103.141.50	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
207.231.149.2	AS36351 IBM Cloud	`0.58ms` from Ashburn, US
114.246.219.130	AS4808 China Unicom Beijing Province Network	`3.77ms` from Beijing, CN
175.34.37.178	AS4804 Microplex PTY LTD	`1.67ms` from Brisbane, AU
64.111.17.2	AS33302 Data102	`1.80ms` from Denver, US
141.94.128.66	AS16276 OVH SAS	`0.06ms` from Gravelines, FR

Traceroute

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

traceroute -a -n -q1 -m10 204.228.83.146

traceroute to 204.228.83.146 (204.228.83.146): 10 hops max, 52 byte packets

1 [AS17054] 66.181.65.65 24.025 ms

2 [AS17054] 66.181.66.122 0.172 ms

3 [AS17054] 209.221.26.114 0.482 ms

4 [AS17054] 66.230.78.162 0.395 ms

5 [AS17054] 66.230.78.193 3.886 ms

6 [AS17054] 209.166.144.22 3.816 ms

7 [AS209] 209.211.30.41 4.459 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Cleveland, US

On January 30th 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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