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Autonomous System

AS42821

K&K Kommunikationssysteme GmbH

K&K Kommunikationssysteme GmbH Germany 🌐 exklusiv.de
Announced IPs
9,216
CIDR prefixes
25
ASN
AS42821

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS42821 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
77.90.182.0/24 AS42821, AS208185 2026-07-18 06:07:42

AS42821 — global IP footprint

Cities where AS42821 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
77.90.140.0/22 1.0K
3.2%
K&K Kommunikationssysteme GmbH DE — —
77.90.160.0/22 1.0K
0.0%
WS Telecom Inc DE Bavaria Nuremberg
77.90.128.0/23 512
45.9%
K&K Kommunikationssysteme GmbH DE Bavaria Augsburg
77.90.132.0/23 512
0.0%
K&K Kommunikationssysteme GmbH DE — —
77.90.136.0/23 512
13.7%
K&K Kommunikationssysteme GmbH DE — —
77.90.146.0/23 512
3.3%
K&K Kommunikationssysteme GmbH DE — —
77.90.156.0/23 512
0.0%
K&K Kommunikationssysteme GmbH DE Bavaria Nuremberg
77.90.170.0/23 512
0.0%
WS Telecom Inc DE Bavaria Nuremberg
77.90.172.0/23 512
0.0%
Clouvider Limited DE Bavaria Nuremberg
213.209.138.0/23 512
3.9%
K&K Kommunikationssysteme GmbH DE — —
77.90.130.0/24 256
64.8%
K&K Kommunikationssysteme GmbH DE — —
77.90.134.0/24 256
23.8%
K&K Kommunikationssysteme GmbH DE — —
77.90.139.0/24 256
100.0%
K&K Kommunikationssysteme GmbH DE — —
77.90.140.0/24 256
10.5%
K&K Kommunikationssysteme GmbH DE — —
77.90.143.0/24 256
2.3%
K&K Kommunikationssysteme GmbH DE — —
77.90.144.0/24 256
10.2%
K&K Kommunikationssysteme GmbH DE — —
77.90.148.0/24 256
0.0%
Net Gate Telecom S.R.L. DE — —
77.90.159.0/24 256
0.0%
WS Telecom Inc DE Bavaria Nuremberg
77.90.165.0/24 256
5.9%
WS Telecom Inc DE Bavaria Nuremberg
77.90.166.0/24 256
0.0%
WS Telecom Inc DE Bavaria Nuremberg
77.90.169.0/24 256
0.0%
WS Telecom Inc DE Bavaria Nuremberg
213.209.138.0/24 256
7.8%
K&K Kommunikationssysteme GmbH DE — —
213.209.143.0/24 256
57.4%
Net Gate Telecom S.R.L. DE — —
213.209.147.0/24 256
0.0%
WS Telecom Inc DE — —
213.209.158.0/24 256
0.0%
WS Telecom Inc DE — —
77.90.139.0/28 16
0.0%
— US — —
77.90.139.112/28 16
0.0%
— UA — —
77.90.139.24/29 8
0.0%
— GB — —
77.90.139.40/29 8
0.0%
— CA — —
77.90.139.72/29 8
0.0%
— DE — —
77.90.139.88/29 8
0.0%
— RU — —
77.90.139.104/29 8
0.0%
— IN — —
77.90.139.128/29 8
0.0%
— AU — —
77.90.139.16/30 4
0.0%
— US — —
77.90.139.20/30 4
0.0%
— GB — —
77.90.139.32/30 4
0.0%
— GB — —
77.90.139.36/30 4
0.0%
— CA — —
77.90.139.48/30 4
0.0%
— CA — —
77.90.139.52/30 4
0.0%
— FR — —
77.90.139.56/30 4
0.0%
— DE — —
77.90.139.60/30 4
0.0%
— FR — —
77.90.139.64/30 4
0.0%
— FR — —
77.90.139.68/30 4
0.0%
— DE — —
77.90.139.80/30 4
0.0%
— DE — —
77.90.139.84/30 4
0.0%
— RU — —
77.90.139.96/30 4
0.0%
— RU — —
77.90.139.100/30 4
0.0%
— IN — —
77.90.139.136/30 4
0.0%
— AU — —
77.90.139.140/30 4
0.0%
— PT — —
77.90.139.144/30 4
0.0%
— BR — —
77.90.139.148/30 4
0.0%
— ID — —
77.90.139.152/30 4
0.0%
— NG — —
77.90.139.156/30 4
0.0%
— BD — —
77.90.139.160/30 4
0.0%
— JP — —
77.90.139.164/30 4
0.0%
— ES — —
77.90.139.168/30 4
0.0%
— GE — —
77.90.139.172/30 4
0.0%
— US — —
77.90.139.176/30 4
0.0%
— MX — —
77.90.139.180/30 4
0.0%
— IR — —
77.90.139.184/30 4
0.0%
— PH — —
77.90.139.188/30 4
0.0%
— TR — —
77.90.139.192/30 4
0.0%
— VN — —
77.90.139.196/30 4
0.0%
— EG — —
77.90.139.200/30 4
0.0%
— KR — —
77.90.139.204/30 4
0.0%
— TH — —
77.90.139.208/30 4
0.0%
— IT — —
77.90.139.212/30 4
0.0%
— PL — —
77.90.139.216/30 4
0.0%
— AR — —
77.90.139.220/30 4
0.0%
— ZA — —
77.90.139.224/30 4
0.0%
— CO — —
77.90.139.228/30 4
0.0%
— NL — —
77.90.139.232/30 4
0.0%
— SA — —
77.90.139.236/30 4
0.0%
— MY — —
77.90.139.240/30 4
0.0%
— US — —
77.90.139.244/30 4
0.0%
— MA — —
77.90.139.248/30 4
0.0%
— TW — —
77.90.139.252/30 4
0.0%
— VE — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS42821 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
213.209.147.0/24 15,690 2026-06-24 13:45:05
213.209.158.0/24 15,401 2026-06-24 13:45:05
77.90.148.0/24 15,121 2026-06-24 13:45:05
77.90.190.0/24 15,018 2026-06-24 13:45:05
77.90.156.0/24 14,908 2026-06-24 13:45:05
77.90.157.0/24 14,631 2026-06-24 13:45:05
77.90.191.0/24 14,580 2026-06-24 13:45:05
77.90.166.0/24 14,328 2026-06-24 13:45:05
77.90.173.0/24 14,128 2026-06-24 13:45:05
77.90.159.0/24 13,750 2026-06-24 13:45:05
77.90.162.0/24 12,605 2026-06-24 13:45:05
77.90.169.0/24 12,589 2026-06-24 13:45:05
77.90.160.0/24 12,582 2026-06-24 13:45:05
77.90.163.0/24 12,579 2026-06-24 13:45:05
77.90.172.0/24 12,577 2026-06-24 13:45:05
77.90.170.0/24 12,546 2026-06-24 13:45:05
77.90.161.0/24 12,545 2026-06-24 13:45:05
77.90.171.0/24 12,466 2026-06-24 13:45:05
213.209.139.0/24 10,805 2026-06-24 13:45:05
213.209.144.0/24 9,472 2026-06-12 15:57:14
213.209.141.0/24 8,486 2026-07-18 09:31:31
77.90.165.0/24 6,294 2026-06-24 13:45:05
77.90.128.0/24 5,667 2026-07-18 09:47:34
77.90.143.0/24 5,666 2026-07-18 09:47:34
77.90.146.0/24 5,665 2026-07-18 09:47:34
77.90.136.0/24 5,662 2026-07-18 09:47:34
77.90.144.0/24 5,661 2026-07-18 09:47:34
77.90.147.0/24 5,661 2026-07-18 09:47:34
77.90.129.0/24 5,661 2026-07-18 09:47:34
77.90.139.0/24 5,658 2026-07-18 09:47:34
77.90.130.0/24 5,658 2026-07-18 09:47:34
77.90.132.0/24 5,657 2026-07-18 09:47:34
77.90.140.0/24 5,657 2026-07-18 09:47:34
77.90.137.0/24 5,655 2026-07-18 09:47:34
77.90.133.0/24 5,651 2026-07-18 09:47:34
77.90.134.0/24 5,648 2026-07-18 09:47:34
213.209.138.0/24 5,592 2026-07-18 09:47:34
213.209.143.0/24 5,529 2026-06-24 13:45:05
77.90.141.0/24 3,578 2026-06-09 22:38:51
77.90.142.0/24 3,432 2026-06-09 22:38:51
77.90.131.0/24 3,110 2026-06-08 23:34:57
213.209.155.0/24 2,916 2026-06-18 09:12:23
213.209.131.0/24 2,912 2026-06-18 09:12:23
213.209.152.0/24 2,911 2026-06-18 09:12:23
77.90.182.0/24 2,870 2026-06-18 09:12:23
77.90.175.0/24 2,807 2026-06-03 11:49:53

Frequently Asked Questions

What is AS42821?

AS42821 is an Autonomous System Number assigned to K&K Kommunikationssysteme GmbH. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS42821 announce?

AS42821 announces 9.2K IPv4 addresses distributed across 25 routed CIDR prefixes. The network is registered in Germany.

Who operates AS42821?

AS42821 is operated by K&K Kommunikationssysteme GmbH. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.

What country is AS42821 registered in?

AS42821 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 10:09:04 UTC
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