205.172.132.0/24

AS399721 · Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas

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Summary

Country	United States
Domain	hcsc.net
ASN	AS399721
Registry	ARIN
ID	BCBSILLINOIS

WHOIS Details

NetHandle:      NET-205-172-132-0-1
OrgID:          BBI
Parent:         NET-205-0-0-0-0
NetName:        BCBSILLINOIS
NetRange:       205.172.132.0 - 205.172.135.255
NetType:        allocation
OriginAS:       23494
RegDate:        1995-04-12
Updated:        2021-12-14
TechHandle:     MSA111-ARIN
AbuseHandle:    MSA111-ARIN
Source:         ARIN


OrgID:          BBI
OrgName:        BlueCross BlueShield of Illinois
CanAllocate:    
Street:         300 East Randolph
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60604-5655
RegDate:        1995-04-12
Updated:        2024-05-16
OrgAdminHandle: BARRK5-ARIN
OrgTechHandle:  MSA111-ARIN
OrgAbuseHandle: MSA111-ARIN
Source:         ARIN


POCHandle:      MSA111-ARIN
IsRole:         N
LastName:       Sanner
FirstName:      Michael
Street:         300 East Randolph
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60601-5655
RegDate:        2006-09-06
Updated:        2024-05-16
OfficePhone:    +1-972-766-3576
MobilePhone:    +1-214-354-8112
Mailbox:        michael_sanner@bcbstx.com
Mailbox:        michael_sanner@hcsc.net
Source:         ARIN


POCHandle:      BARRK5-ARIN
IsRole:         N
LastName:       Barr
FirstName:      Kevin
Street:         300 E. Randolph Street
City:           Chicago
State/Prov:     IL
Country:        US
PostalCode:     60601
RegDate:        2024-05-16
Updated:        2025-05-16
OfficePhone:    +1-972-766-4412
MobilePhone:    +1-214-862-5353
Mailbox:        kevin_barr@bcbstx.com
Source:         ARIN

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
205.172.132.3	AS399721 Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas	`0.83ms` 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
173.75.6.184	AS701 Verizon Business	`6.48ms` from Ashburn, US
49.48.62.104	AS45758 Triple T Broadband Public Company Limited	`4.37ms` from Bangkok, TH
195.225.88.40	AS31709 Cortex Consult A/S	`0.70ms` from Copenhagen, DK
186.153.219.40	AS7303 Telecom Argentina S.A.	`11.64ms` from Cordoba, AR
3.252.33.120	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
41.76.229.72	AS327693 Echotel Pty Ltd	`0.19ms` from Johannesburg, ZA
42.55.147.104	AS4837 CHINA UNICOM China169 Backbone	`10.02ms` from Liaoyang, CN
72.134.54.88	AS20001 Charter Communications Inc	`4.48ms` from Los Angeles, US
95.233.38.152	AS3269 Telecom Italia S.p.A.	`9.75ms` from Milan, IT
210.99.7.72	AS10185 Hana Bank Co.	`3.11ms` from Seoul, KR
118.233.93.104	AS38841 kbro CO. Ltd.	`6.17ms` from Taipei, TW
171.43.12.232	AS4134 CHINANET-BACKBONE	`4.24ms` from Wuhan, CN
117.251.44.216	AS9829 National Internet Backbone	`4.06ms` from Chennai, IN
97.234.38.184	AS6167 Verizon Business	`18.33ms` from Chicago, US
97.228.129.104	AS6167 Verizon Business	`7.86ms` from Denver, US
118.71.159.40	AS18403 FPT Telecom Company	`1.71ms` from Ho Chi Minh City, VN
98.145.21.24	AS20001 Charter Communications Inc	`7.89ms` from Los Angeles, US
68.6.239.200	AS22773 Cox Communications Inc.	`7.38ms` from Los Angeles, US
80.70.119.24	AS34758 Axera SpA	`7.29ms` from Milan, IT
179.250.115.184	AS26615 TIM S/A	`16.08ms` from Osasco, BR
98.165.213.152	AS22773 Cox Communications Inc.	`5.55ms` from Phoenix, US
73.228.102.200	AS7922 Comcast Cable Communications, LLC	`8.07ms` from Salt Lake City, US
38.141.41.8	AS27578 AirBridge Broadband LLC	`7.70ms` from Seattle, US
175.123.123.72	AS9318 SK Broadband Co Ltd	`1.41ms` from Seoul, KR
47.88.152.56	AS45102 Alibaba (US) Technology Co., Ltd.	`0.64ms` 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 -f4 205.172.132.3

traceroute to 205.172.132.3 (205.172.132.3): 64 hops max, 52 byte packets

4 [] 15.230.139.194 18.204 ms

5 *

6 *

7 *

8 *

9 [AS16509] 99.83.70.224 1.125 ms

10 *

11 *

12 [AS3356] 4.2.191.26 0.775 ms

13 [AS399721] 205.172.132.3 0.833 ms

Measurement taken from

IPinfo ProbeNet in Chicago, US

On September 11th 2025

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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