66.158.2.0/23

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:      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


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

Overlapping Ranges

BGP prefixes that contain 66.158.2.0/23

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
124.230.13.87	AS4134 CHINANET-BACKBONE	`6.39ms` from Changsha, CN
136.0.117.151	AS27411 Leaseweb USA, Inc.	`1.14ms` from Chicago, US
81.173.153.87	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`2.21ms` from Duesseldorf, DE
79.200.133.167	AS3320 Deutsche Telekom AG	`6.11ms` from Hamburg, DE
27.74.222.151	AS7552 Viettel Group	`2.23ms` from Ho Chi Minh City, VN
185.248.14.7	AS204457 Atlantis Telekomunikasyon Bilisim Hizmetleri San. Tic. Ltd	`1.24ms` from Istanbul, TR
175.138.96.135	AS4788 TM TECHNOLOGY SERVICES SDN. BHD.	`5.82ms` from Kuala Lumpur, MY
82.5.242.135	AS5089 Virgin Media Limited	`10.05ms` from London, GB
79.53.70.87	AS3269 Telecom Italia S.p.A.	`8.88ms` from Milan, IT
85.164.235.55	AS2119 Telenor Norge AS	`12.13ms` from Oslo, NO
197.238.126.103	AS37705 TOPNET	`17.87ms` from Palermo, IT
34.206.61.103	AS14618 Amazon.com, Inc.	`0.16ms` from Reston, US
73.222.139.135	AS7922 Comcast Cable Communications, LLC	`8.11ms` from San Jose, US
189.35.249.151	AS28573 Claro NXT Telecomunicacoes Ltda	`9.81ms` from Sao Paulo, BR
119.217.122.231	AS4766 Korea Telecom	`7.10ms` from Seoul, KR
20.191.155.103	AS8075 Microsoft Corporation	`0.70ms` from Singapore, SG
144.125.1.119	AS394089 Google LLC	`0.14ms` from Ashburn, US
142.44.129.199	AS16276 OVH SAS	`0.07ms` from Beauharnois, CA
20.45.187.167	AS8075 Microsoft Corporation	`0.20ms` from Cardiff, GB
97.171.214.87	AS6167 Verizon Business	`17.36ms` from Denver, US
52.178.198.151	AS8075 Microsoft Corporation	`0.21ms` from Dublin, IE
91.40.247.151	AS3320 Deutsche Telekom AG	`8.08ms` from Frankfurt am Main, DE
117.67.63.167	AS4134 CHINANET-BACKBONE	`11.82ms` from Huai'an, CN
109.165.5.215	AS12389 PJSC Rostelecom	`17.11ms` from Moscow, RU
3.208.149.199	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f3 -m16 66.158.3.254

traceroute to 66.158.3.254 (66.158.3.254): 16 hops max, 52 byte packets

3 [AS6453] 64.86.8.61 1.286 ms

4 *

5 *

6 *

7 *

8 [AS32787] 23.211.114.210 12.001 ms

9 [AS32787] 72.52.25.42 31.522 ms

10 *

11 *

12 *

13 [AS6325] 206.166.9.238 35.045 ms

14 *

15 *

16 *

Measurement taken from

IPinfo ProbeNet in Atlanta, 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.

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