66.99.128.0/17
AS6325 · Illinois Century Network
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| Country |
United States
|
| Domain | illinois.gov |
| ASN | AS6325 |
| Parent Range | 66.99.0.0/16 |
| Registry | ARIN |
| ID | ICN7 |
WHOIS Details
NetHandle: NET-66-99-0-0-1 OrgID: ILTN Parent: NET-66-0-0-0-0 NetName: ICN7 NetRange: 66.99.0.0 - 66.99.255.255 NetType: allocation RegDate: 2001-04-09 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: 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: 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
Overlapping Ranges
BGP prefixes that contain 66.99.128.0/17
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 66.99.0.0/16 | AS6325 | Illinois Century Network | 65,536 |
BGP prefixes that are contained by 66.99.128.0/17
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 66.99.209.0/24 | AS6325 | PALATINE CCSD 15 | 256 |
| 66.99.240.0/23 | AS46286 | COOK COUNTY | 512 |
Nearby Ranges
BGP prefixes that overlap with 66.99.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 66.99.0.0/16 | AS6325 | Illinois Century Network | 65,536 |
| 66.99.240.0/23 | AS46286 | COOK COUNTY | 512 |
| 66.99.5.0/24 | AS19480 | HAROLD WASHINGTON LIBRARY CENTER | 256 |
| 66.99.209.0/24 | AS6325 | PALATINE CCSD 15 | 256 |
| 66.99.51.0/24 | AS6325 | MANNHEIM SD 83 | 256 |
Hosted domains
There are 46 domain names hosted across 24 IP addresses on this ASN. Checkout our API to access full domain hosting information.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 66.99.138.90 | roe22.k12.il.us | 1 |
| 66.99.138.93 | roe33.k12.il.us | 1 |
| 66.99.233.5 | hppl.lib.il.us | 1 |
| 66.99.250.67 | stlukecemetery.org | 1 |
| 66.99.217.101 | glenview.lib.il.us | 1 |
| 66.99.140.166 | sclaonline.com | 1 |
| 66.99.138.92 | roe27.k12.il.us | 1 |
| 66.99.206.48 | moutray.net | 1 |
| 66.99.191.236 | madison12.k12.il.us | 1 |
Hosted domains API
Pingable IPs
365 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 66.99.193.2 |
4.38ms from Chicago,
US
|
|
| 66.99.143.3 |
5.03ms from Chicago,
US
|
|
| 66.99.237.129 |
2.40ms from Chicago,
US
|
|
| 66.99.236.1 |
1.62ms from Chicago,
US
|
|
| 66.99.190.201 |
8.10ms from Chicago,
US
|
|
| 66.99.217.98 |
3.20ms from Chicago,
US
|
|
| 66.99.252.209 |
1.87ms from Chicago,
US
|
|
| 66.99.142.81 |
15.17ms from Detroit,
US
|
|
| 66.99.240.1 |
0.50ms from Chicago,
US
|
|
| 66.99.223.250 |
2.63ms from Chicago,
US
|
|
| 66.99.248.1 |
2.83ms from Chicago,
US
|
|
| 66.99.170.193 |
7.27ms from Chicago,
US
|
|
| 66.99.224.226 |
1.01ms from Chicago,
US
|
|
| 66.99.159.121 |
9.23ms from Chicago,
US
|
|
| 66.99.180.163 |
7.41ms from Chicago,
US
|
|
| 66.99.128.136 |
7.38ms from Chicago,
US
|
|
| 66.99.202.1 |
4.13ms from Chicago,
US
|
|
| 66.99.229.1 |
1.20ms from Chicago,
US
|
|
| 66.99.130.8 |
7.24ms from Chicago,
US
|
|
| 66.99.140.217 |
5.34ms from Chicago,
US
|
|
| 66.99.218.129 |
1.98ms from Chicago,
US
|
|
| 66.99.129.193 |
7.22ms from Chicago,
US
|
|
| 66.99.191.209 |
10.60ms from Chicago,
US
|
|
| 66.99.192.225 |
8.79ms from Chicago,
US
|
|
| 66.99.155.6 |
9.20ms from Chicago,
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 |
|---|---|---|
| 84.29.236.1 |
2.63ms from Amsterdam,
NL
|
|
| 199.160.138.33 |
1.62ms from Ashburn,
US
|
|
| 97.151.161.1 |
10.58ms from Ashburn,
US
|
|
| 98.252.19.1 |
6.30ms from Ashburn,
US
|
|
| 68.112.64.1 |
9.71ms from Atlanta,
US
|
|
| 120.12.135.193 |
5.60ms from Beijing,
CN
|
|
| 200.70.24.241 |
0.78ms from Buenos Aires,
AR
|
|
| 216.66.168.65 |
5.63ms from Calgary,
CA
|
|
| 165.165.129.1 |
12.41ms from Cape Town,
ZA
|
|
| 113.4.76.97 |
7.34ms from Changchun,
CN
|
|
| 182.150.169.129 |
2.09ms from Chengdu,
CN
|
|
| 173.226.225.1 |
1.03ms from Cincinnati,
US
|
|
| 104.251.184.1 |
2.26ms from Dallas,
US
|
|
| 45.13.236.1 |
0.72ms from Frankfurt am Main,
DE
|
|
| 194.158.244.49 |
1.28ms from Geneve,
CH
|
|
| 47.96.25.97 |
3.86ms from Hangzhou,
CN
|
|
| 116.148.120.1 |
5.52ms from Hangzhou,
CN
|
|
| 70.120.186.49 |
18.62ms from Houston,
US
|
|
| 117.68.103.17 |
4.53ms from Huai'an,
CN
|
|
| 195.175.43.177 |
8.08ms from Izmir,
TR
|
|
| 123.232.20.65 |
1.61ms from Jinan,
CN
|
|
| 155.93.171.1 |
0.52ms from Johannesburg,
ZA
|
|
| 46.174.163.177 |
0.88ms from Kyiv,
UA
|
|
| 60.165.41.209 |
1.21ms from Lanzhou,
CN
|
|
| 124.234.66.1 |
13.85ms from Liaoyang,
CN
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in New York City, US
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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