City: Köln
Region: Nordrhein-Westfalen
Country: Germany
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
#
# 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: 139.6.0.0 - 139.8.255.255
CIDR: 139.8.0.0/16, 139.6.0.0/15
NetName: RIPE-ERX-139-6-0-0
NetHandle: NET-139-6-0-0-1
Parent: NET139 (NET-139-0-0-0-0)
NetType: Early Registrations, Transferred to RIPE NCC
OriginAS:
Organization: RIPE Network Coordination Centre (RIPE)
RegDate: 2015-09-04
Updated: 2025-02-10
Comment: These addresses have been further assigned to users in the RIPE NCC region. Please note that the organization and point of contact details listed below are those of the RIPE NCC not the current address holder. ** You can find user contact information for the current address holder in the RIPE database at http://www.ripe.net/whois.
Ref: https://rdap.arin.net/registry/ip/139.6.0.0
ResourceLink: https://apps.db.ripe.net/db-web-ui/query
ResourceLink: whois.ripe.net
OrgName: RIPE Network Coordination Centre
OrgId: RIPE
Address: P.O. Box 10096
City: Amsterdam
StateProv:
PostalCode: 1001EB
Country: NL
RegDate:
Updated: 2013-07-29
Ref: https://rdap.arin.net/registry/entity/RIPE
ReferralServer: whois.ripe.net
ResourceLink: https://apps.db.ripe.net/db-web-ui/query
OrgAbuseHandle: ABUSE3850-ARIN
OrgAbuseName: Abuse Contact
OrgAbusePhone: +31205354444
OrgAbuseEmail: abuse@ripe.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE3850-ARIN
OrgTechHandle: RNO29-ARIN
OrgTechName: RIPE NCC Operations
OrgTechPhone: +31 20 535 4444
OrgTechEmail: hostmaster@ripe.net
OrgTechRef: https://rdap.arin.net/registry/entity/RNO29-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.
#; <<>> DiG 9.10.3-P4-Ubuntu <<>> 139.6.182.57
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61992
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;139.6.182.57. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026031900 1800 900 604800 86400
;; Query time: 6 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu Mar 19 22:37:15 CST 2026
;; MSG SIZE rcvd: 10557.182.6.139.in-addr.arpa domain name pointer f03-itmk-434-01.f03-itmk.FH-Koeln.DE.Server: 183.60.83.19
Address: 183.60.83.19#53
Non-authoritative answer:
57.182.6.139.in-addr.arpa name = f03-itmk-434-01.f03-itmk.FH-Koeln.DE.
Authoritative answers can be found from:| IP | Type | Details | Datetime |
|---|---|---|---|
| 193.35.51.20 | attackbotsspam | 2020-08-28 01:18:43 dovecot_login authenticator failed for \(\[193.35.51.20\]\) \[193.35.51.20\]: 535 Incorrect authentication data \(set_id=german@sensecell.de\) 2020-08-28 01:18:50 dovecot_login authenticator failed for \(\[193.35.51.20\]\) \[193.35.51.20\]: 535 Incorrect authentication data 2020-08-28 01:18:58 dovecot_login authenticator failed for \(\[193.35.51.20\]\) \[193.35.51.20\]: 535 Incorrect authentication data 2020-08-28 01:19:03 dovecot_login authenticator failed for \(\[193.35.51.20\]\) \[193.35.51.20\]: 535 Incorrect authentication data 2020-08-28 01:19:15 dovecot_login authenticator failed for \(\[193.35.51.20\]\) \[193.35.51.20\]: 535 Incorrect authentication data ... |
2020-08-28 07:26:54 |
| 188.43.6.161 | attackspambots | Brute force hacking attempts |
2020-08-28 06:52:11 |
| 195.245.204.31 | attackspam | Aug 27 05:46:19 mail.srvfarm.net postfix/smtps/smtpd[1364786]: warning: unknown[195.245.204.31]: SASL PLAIN authentication failed: Aug 27 05:46:19 mail.srvfarm.net postfix/smtps/smtpd[1364786]: lost connection after AUTH from unknown[195.245.204.31] Aug 27 05:50:11 mail.srvfarm.net postfix/smtpd[1362099]: warning: unknown[195.245.204.31]: SASL PLAIN authentication failed: Aug 27 05:50:11 mail.srvfarm.net postfix/smtpd[1362099]: lost connection after AUTH from unknown[195.245.204.31] Aug 27 05:53:42 mail.srvfarm.net postfix/smtps/smtpd[1364784]: warning: unknown[195.245.204.31]: SASL PLAIN authentication failed: |
2020-08-28 07:19:02 |
| 141.98.10.199 | attackspam | Aug 28 01:08:22 marvibiene sshd[25840]: Failed password for root from 141.98.10.199 port 37363 ssh2 Aug 28 01:08:50 marvibiene sshd[25873]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=141.98.10.199 Aug 28 01:08:53 marvibiene sshd[25873]: Failed password for invalid user admin from 141.98.10.199 port 42019 ssh2 |
2020-08-28 07:11:42 |
| 103.237.58.36 | attackspam | Aug 27 05:52:42 mail.srvfarm.net postfix/smtpd[1362765]: warning: unknown[103.237.58.36]: SASL PLAIN authentication failed: Aug 27 05:52:42 mail.srvfarm.net postfix/smtpd[1362765]: lost connection after AUTH from unknown[103.237.58.36] Aug 27 05:53:02 mail.srvfarm.net postfix/smtps/smtpd[1364786]: warning: unknown[103.237.58.36]: SASL PLAIN authentication failed: Aug 27 05:53:02 mail.srvfarm.net postfix/smtps/smtpd[1364786]: lost connection after AUTH from unknown[103.237.58.36] Aug 27 05:55:01 mail.srvfarm.net postfix/smtps/smtpd[1364783]: warning: unknown[103.237.58.36]: SASL PLAIN authentication failed: |
2020-08-28 07:23:30 |
| 181.114.208.185 | attackbots | Aug 27 05:51:41 mail.srvfarm.net postfix/smtps/smtpd[1365299]: warning: unknown[181.114.208.185]: SASL PLAIN authentication failed: Aug 27 05:51:42 mail.srvfarm.net postfix/smtps/smtpd[1365299]: lost connection after AUTH from unknown[181.114.208.185] Aug 27 05:57:03 mail.srvfarm.net postfix/smtps/smtpd[1364785]: warning: unknown[181.114.208.185]: SASL PLAIN authentication failed: Aug 27 05:57:04 mail.srvfarm.net postfix/smtps/smtpd[1364785]: lost connection after AUTH from unknown[181.114.208.185] Aug 27 06:00:57 mail.srvfarm.net postfix/smtpd[1362764]: warning: unknown[181.114.208.185]: SASL PLAIN authentication failed: |
2020-08-28 07:22:03 |
| 89.187.168.172 | attackspambots | 0,39-12/07 [bc00/m60] PostRequest-Spammer scoring: brussels |
2020-08-28 06:54:50 |
| 197.51.154.68 | attackspambots | Port probing on unauthorized port 445 |
2020-08-28 07:00:28 |
| 191.233.142.46 | attack | Aug 27 22:44:11 instance-2 sshd[19912]: Failed password for root from 191.233.142.46 port 52072 ssh2 Aug 27 22:49:05 instance-2 sshd[20006]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=191.233.142.46 Aug 27 22:49:07 instance-2 sshd[20006]: Failed password for invalid user tn from 191.233.142.46 port 38182 ssh2 |
2020-08-28 07:03:40 |
| 103.237.58.180 | attack | Aug 27 06:00:17 mail.srvfarm.net postfix/smtpd[1362762]: warning: unknown[103.237.58.180]: SASL PLAIN authentication failed: Aug 27 06:00:17 mail.srvfarm.net postfix/smtpd[1362762]: lost connection after AUTH from unknown[103.237.58.180] Aug 27 06:05:53 mail.srvfarm.net postfix/smtps/smtpd[1365298]: warning: unknown[103.237.58.180]: SASL PLAIN authentication failed: Aug 27 06:05:54 mail.srvfarm.net postfix/smtps/smtpd[1365298]: lost connection after AUTH from unknown[103.237.58.180] Aug 27 06:08:28 mail.srvfarm.net postfix/smtps/smtpd[1365300]: warning: unknown[103.237.58.180]: SASL PLAIN authentication failed: |
2020-08-28 07:12:26 |
| 152.136.96.220 | attackspambots | Aug 27 23:07:18 h2427292 sshd\[10223\]: Invalid user alex from 152.136.96.220 Aug 27 23:07:18 h2427292 sshd\[10223\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=152.136.96.220 Aug 27 23:07:20 h2427292 sshd\[10223\]: Failed password for invalid user alex from 152.136.96.220 port 52678 ssh2 ... |
2020-08-28 06:50:54 |
| 191.53.199.167 | attackbotsspam | Aug 27 08:46:49 mail.srvfarm.net postfix/smtpd[1434871]: warning: unknown[191.53.199.167]: SASL PLAIN authentication failed: Aug 27 08:46:49 mail.srvfarm.net postfix/smtpd[1434871]: lost connection after AUTH from unknown[191.53.199.167] Aug 27 08:54:31 mail.srvfarm.net postfix/smtpd[1434876]: warning: unknown[191.53.199.167]: SASL PLAIN authentication failed: Aug 27 08:54:31 mail.srvfarm.net postfix/smtpd[1434876]: lost connection after AUTH from unknown[191.53.199.167] Aug 27 08:56:37 mail.srvfarm.net postfix/smtpd[1435577]: warning: unknown[191.53.199.167]: SASL PLAIN authentication failed: |
2020-08-28 07:27:26 |
| 182.162.104.153 | attack | Invalid user lab from 182.162.104.153 port 22626 |
2020-08-28 06:58:30 |
| 201.20.182.149 | attackbotsspam | Aug 27 06:06:50 mail.srvfarm.net postfix/smtpd[1379987]: warning: unknown[201.20.182.149]: SASL PLAIN authentication failed: Aug 27 06:06:50 mail.srvfarm.net postfix/smtpd[1379987]: lost connection after AUTH from unknown[201.20.182.149] Aug 27 06:07:46 mail.srvfarm.net postfix/smtpd[1379455]: warning: unknown[201.20.182.149]: SASL PLAIN authentication failed: Aug 27 06:07:47 mail.srvfarm.net postfix/smtpd[1379455]: lost connection after AUTH from unknown[201.20.182.149] Aug 27 06:13:04 mail.srvfarm.net postfix/smtps/smtpd[1381943]: warning: unknown[201.20.182.149]: SASL PLAIN authentication failed: |
2020-08-28 07:05:21 |
| 193.169.253.27 | attackspam | Aug 27 20:29:16 web02.agentur-b-2.de postfix/smtpd[428260]: warning: unknown[193.169.253.27]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 27 20:29:16 web02.agentur-b-2.de postfix/smtpd[428260]: lost connection after AUTH from unknown[193.169.253.27] Aug 27 20:33:28 web02.agentur-b-2.de postfix/smtpd[428260]: warning: unknown[193.169.253.27]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 27 20:33:28 web02.agentur-b-2.de postfix/smtpd[428260]: lost connection after AUTH from unknown[193.169.253.27] Aug 27 20:37:03 web02.agentur-b-2.de postfix/smtpd[431236]: warning: unknown[193.169.253.27]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 |
2020-08-28 07:19:18 |