Dataweaz

149.117.74.3

Good reputation

Summary

Hostname
—
ASN
—
Organization
Synopsys Inc.
Network
SYNOPSYS-NET-149-117
Range
149.117.0.0 - 149.117.255.255
/24 block
149.117.74.0/24
Country
US
Blacklists
0 of 14
Abuse contact
[email protected]

Presence of 149.117.74.3 in blacklists

ListStatus
zen.spamhaus.orgNot listed
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 149.117.74.3

#
# 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:       149.117.0.0 - 149.117.255.255
CIDR:           149.117.0.0/16
NetName:        SYNOPSYS-NET-149-117
NetHandle:      NET-149-117-0-0-1
Parent:         NET149 (NET-149-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Synopsys Inc. (SYNOPS)
RegDate:        1997-04-29
Updated:        2026-05-14
Comment:        -----BEGIN CERTIFICATE-----
Comment:        MIIEAzCCAuugAwIBAgIUT9qk6wot67O/VarT45UEcD6zrXswDQYJKoZIhvcNAQEL
Comment:        BQAwgZAxCzAJBgNVBAYTAlVTMQswCQYDVQQIDAJDQTESMBAGA1UEBwwJU3Vubnl2
Comment:        YWxlMREwDwYDVQQKDAhTeW5vcHN5czEMMAoGA1UECwwDRUVHMRUwEwYDVQQDDAxa
Comment:        c2NhbGVyLUVOQVQxKDAmBgkqhkiG9w0BCQEWGW5ldHdvcmstY29yZUBzeW5vcHN5
Comment:        cy5jb20wHhcNMjYwNTEzMTQzNTU0WhcNMjcwNTEzMTQzNTU0WjCBkDELMAkGA1UE
Comment:        BhMCVVMxCzAJBgNVBAgMAkNBMRIwEAYDVQQHDAlTdW5ueXZhbGUxETAPBgNVBAoM
Comment:        CFN5bm9wc3lzMQwwCgYDVQQLDANFRUcxFTATBgNVBAMMDFpzY2FsZXItRU5BVDEo
Comment:        MCYGCSqGSIb3DQEJARYZbmV0d29yay1jb3JlQHN5bm9wc3lzLmNvbTCCASIwDQYJ
Comment:        KoZIhvcNAQEBBQADggEPADCCAQoCggEBAOJvya/nrGpagNs2ue5nuCtZOVborLTR
Comment:        43dUKnrvsGnFvB45ncMNCXF8iXuiiDGWNhUd6oAD6UHiwGpapuWTBEZv1T7q/W38
Comment:        anVq6PcqPct9K7t1Fd9U/1rdZ6rKNgoXEAt32DyWMWQvj8wlzf9H5nwLQYUj+YX4
Comment:        t8CfRA+T5gvP4fJbdGOd4a5HFTaiFO6yVjPd7tu1/UlFHtvRZcdgvnAV77T6ZRiE
Comment:        vBF3MSl9Ogs3bn1TbC67UC6yNfXZ5ErLAFMUR5XXdWolKnIrH+mEekWSN3ovXwpv
Comment:        yl1XV1imCeX99hVQZa7xDmifpaCSt3/yK8xd+kU7+6x8SnL3WEykZS8CAwEAAaNT
Comment:        MFEwHQYDVR0OBBYEFKPQJ1v0XyRYusvwQ5M27UBRpXwMMB8GA1UdIwQYMBaAFKPQ
Comment:        J1v0XyRYusvwQ5M27UBRpXwMMA8GA1UdEwEB/wQFMAMBAf8wDQYJKoZIhvcNAQEL
Comment:        BQADggEBAKEfUoQfhb3ZE+paf88FkrkzmY+lACuQyIEb5llSFKFgn8RJpmeTWKLs
Comment:        lRm/fWXEc5X5vEkpSDWTHVsHFqBRTQ56ONG6Om1Gi2+bghJyInUbvW9+ncIXCcyE
Comment:        U0lmeHgPZFmJd40Db/ae9HeFMZFjmqoS08O4b7GhBtxJzFFwSDmLvJjUknMkppKK
Comment:        s+C/dn5bsvYzn+Lj4VlK9NIg1Ayfla3CE53c3HZVV1Z7M+0kZsxQmft4+fSpS/vF
Comment:        Ruw3R7SrJt33Pf34SNhiYeo4crg1ZjeAJPgoVjH0iCOJmMDn9eCZbpgERTMa+nQp
Comment:        LzQ+c+CiPZ27Qwxze+h57ifY/BZbTzw=
Comment:        -----END CERTIFICATE-----
Ref:            https://rdap.arin.net/registry/ip/149.117.0.0
OrgName:        Synopsys Inc.
OrgId:          SYNOPS
Address:        675 Almanor Ave
City:           Sunnyvale
StateProv:      CA
PostalCode:     94085
Country:        US
RegDate:        1991-02-28
Updated:        2025-10-22
Ref:            https://rdap.arin.net/registry/entity/SYNOPS
OrgRoutingHandle: CHAND323-ARIN
OrgRoutingName:   Chandrashekara, Rajashekara 
OrgRoutingPhone:  +09742855547 
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/CHAND323-ARIN
OrgTechHandle: NETWO2400-ARIN
OrgTechName:   NETWORK-TEAM
OrgTechPhone:  +1-650-584-4260 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO2400-ARIN
OrgAbuseHandle: NETWO2400-ARIN
OrgAbuseName:   NETWORK-TEAM
OrgAbusePhone:  +1-650-584-4260 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO2400-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 149.117.74.3.

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 149.117.74.3: 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