Summary
- Hostname
- —
- ASN
- —
- Organization
- Alentus Corporation
- Network
- ALENT-NBLK-2
- Range
- 64.40.144.0 - 64.40.159.255
- /24 block
- 64.40.158.0/24
- Country
- US
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 64.40.158.0 in blacklists
| List | Status |
|---|---|
| zen.spamhaus.org | Not listed |
| bl.spamcop.net | Not listed |
| black.junkemailfilter.com | Not listed |
| multi.surbl.org | Not listed |
| dnsbl.sorbs.net | Not listed |
| b.barracudacentral.org | Not listed |
| dnsbl.tornevall.org | Not listed |
| dnsbl.httpbl.org | Not listed |
| dnsbl-1.uceprotect.net | Not listed |
| dnsbl-2.uceprotect.net | Not listed |
| dnsbl-3.uceprotect.net | Not listed |
| v4.fullbogons.cymru.com | Not listed |
| bl.blocklist.de | Not listed |
| rbl.blockedservers.com | Not 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 64.40.158.0
#
# 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.
#
# start
NetRange: 64.40.144.0 - 64.40.159.255
CIDR: 64.40.144.0/20
NetName: ALENT-NBLK-2
NetHandle: NET-64-40-144-0-1
Parent: NET64 (NET-64-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Alentus Corporation (ALENT)
RegDate: 2004-01-13
Updated: 2023-04-14
Ref: https://rdap.arin.net/registry/ip/64.40.144.0
OrgName: Alentus Corporation
OrgId: ALENT
Address: 120 Vantis Drive
Address: Suite 300
City: Aliso Viejo
StateProv: CA
PostalCode: 92656
Country: US
RegDate: 2008-04-21
Updated: 2020-11-16
Ref: https://rdap.arin.net/registry/entity/ALENT
OrgAbuseHandle: GNOC15-ARIN
OrgAbuseName: Global Network Operations Center
OrgAbusePhone: +1-888-890-8905
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/GNOC15-ARIN
OrgTechHandle: GNOC15-ARIN
OrgTechName: Global Network Operations Center
OrgTechPhone: +1-888-890-8905
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/GNOC15-ARIN
# end
# start
NetRange: 64.40.152.0 - 64.40.159.255
CIDR: 64.40.152.0/21
NetName: IPX-64
NetHandle: NET-64-40-152-0-1
Parent: ALENT-NBLK-2 (NET-64-40-144-0-1)
NetType: Reallocated
OriginAS:
Organization: Netuity Networks Inc (NN-43)
RegDate: 2022-12-08
Updated: 2022-12-11
Ref: https://rdap.arin.net/registry/ip/64.40.152.0
OrgName: Netuity Networks Inc
OrgId: NN-43
Address: Scotia Place, Suite 2020
Address: 10060 Jasper Avenue
City: Edmonton
StateProv: AB
PostalCode: T5J 3R8
Country: CA
RegDate: 2014-03-31
Updated: 2023-11-06
Ref: https://rdap.arin.net/registry/entity/NN-43
OrgRoutingHandle: IST36-ARIN
OrgRoutingName: IPXO Support Team
OrgRoutingPhone: +1 (650) 564-3425
OrgRoutingEmail: [email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/IST36-ARIN
OrgTechHandle: GNOC15-ARIN
OrgTechName: Global Network Operations Center
OrgTechPhone: +1-888-890-8905
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/GNOC15-ARIN
OrgAbuseHandle: MACLE-ARIN
OrgAbuseName: Macleod, John
OrgAbusePhone: +48668517865
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/MACLE-ARIN
RAbuseHandle: MACLE-ARIN
RAbuseName: Macleod, John
RAbusePhone: +48668517865
RAbuseEmail: [email protected]
RAbuseRef: https://rdap.arin.net/registry/entity/MACLE-ARIN
# end
# start
NetRange: 64.40.152.0 - 64.40.159.255
CIDR: 64.40.152.0/21
NetName: IPX-64-40-152-0
NetHandle: NET-64-40-152-0-2
Parent: IPX-64 (NET-64-40-152-0-1)
NetType: Reallocated
OriginAS:
Organization: IPXO LLC (IL-845)
RegDate: 2022-12-13
Updated: 2022-12-13
Ref: https://rdap.arin.net/registry/ip/64.40.152.0
OrgName: IPXO LLC
OrgId: IL-845
Address: 3132 State Street
City: Dallas
StateProv: TX
PostalCode: 75204-3500
Country: US
RegDate: 2021-03-25
Updated: 2025-09-10
Comment: Geofeed https://geofeed.ipxo.com/geofeed.txt
Ref: https://rdap.arin.net/registry/entity/IL-845
OrgTechHandle: IST36-ARIN
OrgTechName: IPXO Support Team
OrgTechPhone: +1 (650) 564-3425
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/IST36-ARIN
OrgAbuseHandle: IAMT1-ARIN
OrgAbuseName: IPXO Abuse Management Team
OrgAbusePhone: +1 (650) 934-1667
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/IAMT1-ARIN
OrgDNSHandle: IST36-ARIN
OrgDNSName: IPXO Support Team
OrgDNSPhone: +1 (650) 564-3425
OrgDNSEmail: [email protected]
OrgDNSRef: https://rdap.arin.net/registry/entity/IST36-ARIN
# end
#
# 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 64.40.158.0.
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 64.40.158.0: 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