66.158.8.0/21

AS6325 · Illinois Century Network

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Summary

Country	United States
Domain	illinois.gov
ASN	AS6325
Parent Range	66.158.0.0/17
Registry	ARIN
ID	ICN8

WHOIS Details

NetHandle:      NET-66-158-0-0-1
OrgID:          ILTN
Parent:         NET-66-0-0-0-0
NetName:        ICN8
NetRange:       66.158.0.0 - 66.158.127.255
NetType:        allocation
RegDate:        2001-07-30
Updated:        2015-11-16
TechHandle:     ZI83-ARIN
Source:         ARIN


OrgID:          ILTN
OrgName:        Illinois Century Network
CanAllocate:    
Street:         120 W Jefferson
Street:         Suite B
City:           Springfield
State/Prov:     IL
Country:        US
PostalCode:     62702
RegDate:        1970-01-01
Updated:        2025-09-24
ReferralServer: rwhois://rwhois.illinois.net:4321
OrgAdminHandle: ZI83-ARIN
OrgTechHandle:  RESER5-ARIN
OrgTechHandle:  WEBST193-ARIN
OrgTechHandle:  ZI83-ARIN
OrgAbuseHandle: ICNAB-ARIN
Source:         ARIN


POCHandle:      WEBST193-ARIN
IsRole:         N
LastName:       Webster
FirstName:      Andrew
Street:         120 W Jefferson St
City:           Springfield
State/Prov:     IL
Country:        US
PostalCode:     62702
RegDate:        2025-07-21
Updated:        2025-07-21
OfficePhone:    +1-217-558-1106
Mailbox:        andy.webster@illinois.gov
Source:         ARIN


POCHandle:      RESER5-ARIN
IsRole:         N
LastName:       Reserva
FirstName:      Chuck
Street:         120 West Jefferson, Springfield, Illinois, 62702
City:           Springfield
State/Prov:     IL
Country:        US
PostalCode:     62702
RegDate:        2025-09-23
Updated:        2025-09-23
OfficePhone:    +1-217-786-8872
Mailbox:        chuck.reserva@illinois.gov
Source:         ARIN


POCHandle:      ICNAB-ARIN
IsRole:         Y
LastName:       ICN Abuse
FirstName:      
Street:         120 W Jefferson
Street:         Suite B
City:           Springfield
State/Prov:     IL
Country:        US
PostalCode:     62702
RegDate:        2003-10-09
Updated:        2025-07-21
OfficePhone:    +1-217-524-3648
Mailbox:        doit.security@illinois.gov
Source:         ARIN


POCHandle:      ZI83-ARIN
IsRole:         Y
LastName:       Hostmaster
FirstName:      
Street:         120 W Jefferson
Street:         Suite B
City:           Springfield
State/Prov:     IL
Country:        US
PostalCode:     62702
RegDate:        2001-10-31
Updated:        2025-05-29
OfficePhone:    +1-815-936-4643
MobilePhone:    +1-779-801-4071
Mailbox:        DoIT.ICN.Hostmasternet@illinois.gov
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 66.158.8.0/21

Range	ASN	Company	Num of IPs
66.158.0.0/17	AS6325	Illinois Century Network	32,768

Nearby Ranges

BGP prefixes that overlap with 66.158.0.0/16

Range	ASN	Company	Num of IPs
66.158.0.0/17	AS6325	Illinois Century Network	32,768
66.158.128.0/19	AS16532	B2B2C Inc	8,192
66.158.160.0/20	AS11069	Altafiber	4,096
66.158.176.0/20	AS12231	Conway Corporation	4,096
66.158.152.0/22	AS1403	EBOX	1,024
66.158.148.0/22	AS1403	EBOX	1,024
66.158.156.0/22	AS1403	EBOX	1,024
66.158.104.0/24	AS6325	SAC-H001	256
66.158.58.0/24	AS33248	CITY OF EVANSTON - CIVIC CENTER	256
66.158.46.0/24	AS32344	CHSD 99	256
66.158.65.0/24	AS33248	CITY OF EVANSTON - CIVIC CENTER	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
67.222.2.37	AS63410 PrivateSystems Networks	`0.38ms` from Atlanta, US
137.128.100.213	AS668 United States Department of Defense (DoD)	`4.19ms` from Chicago, US
117.0.151.85	AS7552 Viettel Group	`3.01ms` from Hanoi, VN
60.171.13.69	AS4134 CHINANET-BACKBONE	`8.63ms` from Huai'an, CN
218.234.17.149	AS9318 SK Broadband Co Ltd	`0.84ms` from Incheon, KR
178.206.149.5	AS28840 PJSC TATTELECOM	`4.36ms` from Kazan, RU
176.49.202.21	AS12389 PJSC Rostelecom	`0.82ms` from Krasnoyarsk, RU
85.33.144.101	AS3269 Telecom Italia S.p.A.	`8.78ms` from Milan, IT
94.75.154.85	AS12389 PJSC Rostelecom	`11.98ms` from Moscow, RU
74.90.3.21	AS6128 Cablevision Systems Corp.	`8.44ms` from New York City, US
199.241.245.133	AS22742 Connecticut Education Network	`5.97ms` from Providence, US
68.85.241.69	AS7922 Comcast Cable Communications, LLC	`0.41ms` from Seattle, US
148.170.132.133	AS11260 EastLink	`10.06ms` from Toronto, CA
174.55.206.213	AS7922 Comcast Cable Communications, LLC	`18.73ms` from Ashburn, US
181.110.226.101	AS7303 Telecom Argentina S.A.	`7.47ms` from Asuncion, PY
122.137.250.229	AS4837 CHINA UNICOM China169 Backbone	`2.35ms` from Changchun, CN
3.254.98.133	AS16509 Amazon.com, Inc.	`0.28ms` from Dublin, IE
23.218.157.5	AS16625 Akamai Technologies, Inc.	`0.26ms` from Kuala Lumpur, MY
107.212.106.133	AS7018 AT&T Enterprises, LLC	`7.17ms` from Miami, US
176.207.183.197	AS1267 WIND TRE S.P.A.	`7.13ms` from Milan, IT
112.173.66.197	AS4766 Korea Telecom	`7.05ms` from Seoul, KR
203.41.239.5	AS1221 Telstra Limited	`0.48ms` from Sydney, AU
102.45.226.5	AS8452 TE-AS	`4.01ms` from Cairo, EG
152.110.67.69	AS20011 Dimension Data	`1.45ms` from Cape Town, ZA
50.90.93.165	AS33363 Charter Communications, Inc	`8.40ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f5 -m17 66.158.8.98

traceroute to 66.158.8.98 (66.158.8.98): 17 hops max, 52 byte packets

5 [AS1299] 62.115.181.129 1.254 ms

6 [AS32787] 2.21.113.104 0.819 ms

7 *

8 *

9 *

10 [AS32787] 209.200.130.66 66.649 ms

11 *

12 *

13 *

14 [AS6325] 206.166.9.238 72.949 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On February 16th 2026

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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.

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