198.251.18.0/23

AS36319 · NorthShore University HealthSystem

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Summary

Country	United States
Domain	nch.org
ASN	AS36319
Registry	ARIN
ID	NETBLK-NWCHDATCOM

WHOIS Details

NetHandle:      NET-198-251-16-0-1
OrgID:          NCH-1
Parent:         NET-198-0-0-0-0
NetName:        NETBLK-NWCHDATCOM
NetRange:       198.251.16.0 - 198.251.30.255
NetType:        allocation
RegDate:        1993-08-30
Updated:        2021-12-14
TechHandle:     DUKIC2-ARIN
AbuseHandle:    DUKIC2-ARIN
NOCHandle:      DUKIC2-ARIN
Source:         ARIN


OrgID:          NCH-1
OrgName:        Northwest Community Hospital
CanAllocate:    
Street:         800 West Central Road
City:           Arlington Heights
State/Prov:     IL
Country:        US
PostalCode:     60005
RegDate:        1993-08-30
Updated:        2025-01-08
OrgAdminHandle: DUKIC2-ARIN
OrgTechHandle:  DUKIC2-ARIN
OrgTechHandle:  MARKA51-ARIN
OrgTechHandle:  SMITH6239-ARIN
OrgAbuseHandle: DUKIC2-ARIN
OrgAbuseHandle: MARKA51-ARIN
OrgNOCHandle:   DUKIC2-ARIN
OrgNOCHandle:   MARKA51-ARIN
OrgRoutingHandle:   DUKIC2-ARIN
OrgRoutingHandle:   MARKA51-ARIN
OrgRoutingHandle:   SMITH6239-ARIN
OrgDNSHandle:   DUKIC2-ARIN
OrgDNSHandle:   MARKA51-ARIN
Source:         ARIN


POCHandle:      DUKIC2-ARIN
IsRole:         N
LastName:       Dukich
FirstName:      Paul
Street:         800 W. Central Rd
City:           Arlington Heights
State/Prov:     IL
Country:        US
PostalCode:     60005
RegDate:        2016-10-10
Updated:        2025-10-01
OfficePhone:    +1-847-618-4887
Mailbox:        [email protected]
Mailbox:        [email protected]
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      SMITH6239-ARIN
IsRole:         N
LastName:       Smith
FirstName:      Daniel
Street:         4201 Winfield Rd
City:           Warrenville
State/Prov:     IL
Country:        US
PostalCode:     60555
RegDate:        2025-01-08
Updated:        2026-01-09
OfficePhone:    +1-630-527-5663
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      MARKA51-ARIN
IsRole:         N
LastName:       Eilken
FirstName:      Mark
Street:         800 W. Central Rd.
City:           Arlington Heights
State/Prov:     IL
Country:        US
PostalCode:     60005
RegDate:        2022-11-23
Updated:        2022-11-23
OfficePhone:    +1-847-618-4834
MobilePhone:    +1-630-401-9289
Mailbox:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 198.251.0.0/16

Range	ASN	Company	Num of IPs
198.251.64.0/20	AS8560	IONOS Inc.	4,096
198.251.96.0/20	AS54923	Network Communications	4,096
198.251.48.0/20	AS5769	ViaNetTV Inc	4,096
198.251.112.0/20	AS13866	Data Center West, Inc.	4,096
198.251.48.0/20	AS54198	ViaNetTV Inc	4,096
198.251.40.0/21	AS21668	ElbertonNet	2,048
198.251.92.0/22	AS14956	RouterHosting LLC	1,024
198.251.31.0/24	AS40521	Bluefin Trading, LLC	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

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Pingable IPs

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

IP Address	ASN	Details
198.251.18.33	AS36319 NorthShore University HealthSystem	`120.91ms` from Girona, ES
198.251.19.220	AS36319 NorthShore University HealthSystem	`125.58ms` from Tirana, AL

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
172.205.144.39	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
75.241.107.167	AS6167 Verizon Business	`19.79ms` from Atlanta, US
75.181.37.247	AS11426 Charter Communications Inc	`5.74ms` from Charlotte, US
34.174.134.23	AS396982 Google LLC	`0.13ms` from Dallas, US
20.203.214.23	AS8075 Microsoft Corporation	`0.17ms` from Kloten, CH
182.244.112.167	AS4134 CHINANET-BACKBONE	`3.69ms` from Kunming, CN
20.50.124.71	AS8075 Microsoft Corporation	`0.21ms` from London, GB
90.166.252.7	AS12479 Orange Espagne SA	`10.97ms` from Madrid, ES
88.22.63.7	AS3352 TELEFONICA DE ESPANA S.A.U.	`11.44ms` from Madrid, ES
217.217.100.151	AS20326 TeraSwitch Networks Inc.	`1.03ms` from New York City, US
60.140.97.103	AS17676 SoftBank Corp.	`9.67ms` from Osaka, JP
200.162.128.135	AS22177 Transit do Brasil S/A	`0.92ms` from Osasco, BR
47.77.224.167	AS45102 Alibaba (US) Technology Co., Ltd.	`0.39ms` from Santa Clara, US
18.139.13.215	AS16509 Amazon.com, Inc.	`0.14ms` from Singapore, SG
42.60.186.87	AS9506 Singtel Fibre Broadband	`1.36ms` from Singapore, SG
132.220.205.23	AS8075 Microsoft Corporation	`0.24ms` from Amsterdam, NL
14.137.13.151	AS55850 Mercury NZ Limited	`1.08ms` from Auckland, NZ
52.36.150.7	AS16509 Amazon.com, Inc.	`0.12ms` from Boardman, US
120.152.21.167	AS1221 Telstra Limited	`17.41ms` from Brisbane, AU
186.129.221.39	AS22927 Telefonica de Argentina	`2.79ms` from Buenos Aires, AR
78.160.173.39	AS9121 Turk Telekomunikasyon Anonim Sirketi	`6.67ms` from Bursa, TR
86.2.5.7	AS5089 Virgin Media Limited	`1.94ms` from Erith, GB
176.57.185.7	AS56876 Ociris GmbH	`0.48ms` from Frankfurt am Main, DE
103.74.117.71	AS63759 TaDu Joint Stock Company	`1.58ms` from Ho Chi Minh City, VN
68.169.26.7	AS22903 Databank Holdings, Ltd	`1.47ms` from Kansas City, US

Traceroute

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

traceroute -a -n -q1 -m4 198.251.19.188

traceroute to 198.251.19.188 (198.251.19.188): 4 hops max, 52 byte packets

1 [AS202105] 87.237.225.3 0.305 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Jeddah, SA

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.

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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