Dataweaz

158.71.55.245

Bad reputation: listed in 1 blacklist

Summary

Hostname
—
ASN
—
Organization
U.S. Dept. of Health and Human Services
Network
NET-HHS2
Range
158.71.0.0 - 158.71.255.255
/24 block
158.71.55.0/24
Country
US
Blacklists
1 of 14
Abuse contact
[email protected]

Presence of 158.71.55.245 in blacklists

ListStatus
zen.spamhaus.orgListed
bl.spamcop.netNot listed
black.junkemailfilter.comNot listed
multi.surbl.orgNot listed
dnsbl.sorbs.netNot listed
b.barracudacentral.orgNot listed
dnsbl.tornevall.orgNot listed
dnsbl.httpbl.orgNot listed
dnsbl-1.uceprotect.netNot listed
dnsbl-2.uceprotect.netNot listed
dnsbl-3.uceprotect.netNot listed
v4.fullbogons.cymru.comNot listed
bl.blocklist.deNot listed
rbl.blockedservers.comNot listed

What is a blacklist (RBL)?

An RBL (Real-time Blackhole List), also known as a DNSBL (DNS-based Blackhole List), is a mechanism used to fight spam by blocking e-mails coming from sources known to send spam. RBLs are databases listing the IP addresses deemed responsible for sending unsolicited e-mail. Mail server administrators use these lists to filter incoming e-mails by checking whether the sender's IP address appears in one or more RBLs. If it does, the e-mail may be rejected or subjected to additional checks.

There are different types of RBLs, each with its own criteria for listing IP addresses. Some focus on IP addresses that send spam directly, while others list IP addresses belonging to networks known to host computers infected with malware and used as bots to send spam. RBL operators keep their lists up to date through automatic and manual contributions, and IP address owners can often request removal from a list if they believe the listing is unjustified.

WHOIS data for 158.71.55.245

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
NetRange:       158.71.0.0 - 158.71.255.255
CIDR:           158.71.0.0/16
NetName:        NET-HHS2
NetHandle:      NET-158-71-0-0-1
Parent:         NET158 (NET-158-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   U.S. Dept. of Health and Human Services (UDHHS)
RegDate:        1992-02-15
Updated:        2026-02-19
Comment:        -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref:            https://rdap.arin.net/registry/ip/158.71.0.0
OrgName:        U.S. Dept. of Health and Human Services
OrgId:          UDHHS
Address:        HHS/ASA/OCIO

Address:        5600 Fishers Lane
City:           Rockville
StateProv:      MD
PostalCode:     20852
Country:        US
RegDate:        1992-02-15
Updated:        2025-12-31
Ref:            https://rdap.arin.net/registry/entity/UDHHS
OrgNOCHandle: MOXLE3-ARIN
OrgNOCName:   Moxley, Duane 
OrgNOCPhone:  +1-202-770-5350 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/MOXLE3-ARIN
OrgTechHandle: MILLE3252-ARIN
OrgTechName:   Miller, Tim 
OrgTechPhone:  +1-206-615-2450 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/MILLE3252-ARIN
OrgTechHandle: MOXLE3-ARIN
OrgTechName:   Moxley, Duane 
OrgTechPhone:  +1-202-770-5350 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/MOXLE3-ARIN
OrgTechHandle: PSC110-ARIN
OrgTechName:   Program Support Center
OrgTechPhone:  +1-202-774-2125 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/PSC110-ARIN
OrgAbuseHandle: MOXLE3-ARIN
OrgAbuseName:   Moxley, Duane 
OrgAbusePhone:  +1-202-770-5350 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MOXLE3-ARIN
OrgNOCHandle: HNOC10-ARIN
OrgNOCName:   HHS Network Operations Center
OrgNOCPhone:  +1-301-443-2893 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/HNOC10-ARIN
OrgAbuseHandle: ABUSE5037-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-301-443-2893 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5037-ARIN
OrgTechHandle: VOYTA-ARIN
OrgTechName:   Voyta, Steven 
OrgTechPhone:  +1-240-506-1441 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/VOYTA-ARIN
RAbuseHandle: ABUSE5037-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-301-443-2893 
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE5037-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Related domain names

Domains mentioned in the reverse DNS and the WHOIS of 158.71.55.245.

What is an IP address?

An IP address is a unique identifier on the internet that identifies a server or an internet user. Here the IP address is 158.71.55.245: it may be the unique address used to reach a website, or the unique address of an internet user.

An SMTP server (a server used to send e-mails) must have a reverse DNS record associated with its IP address

Neighboring IP addresses

Other IP addresses