1. All IP Ranges
  2. 66.0.0.0/8
  3. 66.99.0.0/16
  4. AS6325  | 66.99.128.0/18

66.99.128.0/18

AS6325  ·  Illinois Century Network

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Summary

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:      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:        [email protected]
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:        [email protected]
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:        [email protected]
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 66.99.128.0/18

Range ASN Company Num of IPs
66.99.0.0/16 AS6325 Illinois Century Network 65,536

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 38 domain names hosted across 17 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
66.99.142.47 rwhois.cc.il.us 6
66.99.138.96 roe48.k12.il.us 1
66.99.138.92 roe27.k12.il.us 1
66.99.138.98 roe53.k12.il.us 1
66.99.140.166 sclaonline.com 1
66.99.191.236 madison12.k12.il.us 1

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

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

IP Address ASN Details
66.99.180.163 AS6325 Illinois Century Network 7.38ms from Chicago, US
66.99.169.106 AS6325 Illinois Century Network 6.83ms from Chicago, US
66.99.159.121 AS6325 Illinois Century Network 9.21ms from Chicago, US
66.99.155.6 AS6325 Illinois Century Network 9.22ms from Chicago, US
66.99.191.209 AS6325 Illinois Century Network 10.74ms from Chicago, US
66.99.128.136 AS6325 Illinois Century Network 7.38ms from Chicago, US
66.99.130.8 AS6325 Illinois Century Network 7.26ms from Chicago, US
66.99.190.201 AS6325 Illinois Century Network 8.14ms from Chicago, US
66.99.129.193 AS6325 Illinois Century Network 7.17ms from Chicago, US
66.99.142.81 AS6325 Illinois Century Network 15.33ms from Detroit, US
66.99.140.217 AS6325 Illinois Century Network 5.32ms from Chicago, US
66.99.170.193 AS6325 Illinois Century Network 7.25ms from Chicago, US
66.99.143.4 AS6325 Illinois Century Network 5.06ms 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
199.160.138.34 AS6079 RCN 1.63ms from Ashburn, US
212.144.78.162 AS3209 Vodafone GmbH 5.66ms from Berlin, DE
2.205.30.114 AS3209 Vodafone GmbH 3.97ms from Berlin, DE
24.34.22.66 AS7922 Comcast Cable Communications, LLC 5.86ms from Boston, US
190.123.98.50 AS27877 Coop. Telefonica de Capitán Bermúdez 5.23ms from Buenos Aires, AR
196.120.33.2 AS36925 MEDITELECOM 3.96ms from Casablanca, MA
92.142.105.242 AS3215 Orange S.A. 2.06ms from Cayenne, GF
175.23.183.130 AS4837 CHINA UNICOM China169 Backbone 8.00ms from Changchun, CN
162.238.119.82 AS7018 AT&T Enterprises, LLC 8.87ms from Chicago, US
87.51.27.66 AS3292 TDC Holding A/S 1.33ms from Copenhagen, DK
13.225.225.98 AS16509 Amazon.com, Inc. 0.28ms from Dallas, US
92.117.138.194 AS8881 1&1 Versatel GmbH 2.51ms from Duesseldorf, DE
80.155.163.18 AS3320 Deutsche Telekom AG 1.03ms from Hamburg, DE
103.136.160.2 AS58495 PT Parsaoran Global Datatrans 0.77ms from Jakarta, ID
103.38.248.2 AS150424 Janaki Net Link 2.08ms from Kathmandu, NP
42.87.165.162 AS4837 CHINA UNICOM China169 Backbone 9.79ms from Liaoyang, CN
87.242.232.210 AS13285 TalkTalk Communications Limited 1.46ms from London, GB
18.133.81.194 AS16509 Amazon.com, Inc. 0.16ms from London, GB
66.215.2.98 AS20115 Charter Communications LLC 0.69ms from Los Angeles, US
2.98.195.226 AS13285 TalkTalk Communications Limited 5.70ms from Manchester, GB
172.253.216.50 AS15169 Google LLC 0.20ms from Moncks Corner, US
79.52.153.2 AS3269 Telecom Italia S.p.A. 4.61ms from Naples, IT
46.212.162.66 AS25400 Telia Norge AS 15.58ms from Sandefjord, NO
76.147.136.82 AS7922 Comcast Cable Communications, LLC 5.45ms from Seattle, US
47.236.83.210 AS45102 Alibaba (US) Technology Co., Ltd. 0.60ms from Singapore, SG

Traceroute

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

$
traceroute -a -n -q1 -m7 66.99.188.89
traceroute to 66.99.188.89 (66.99.188.89): 7 hops max, 52 byte packets
3 [] 208.115.136.22 91.03 ms
4 [AS6325] 206.166.9.209 97.557 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Paris, FR
On

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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