Johannes Ernst

Data as of 2026-09-06

BGP inherited

This organisation

Netblocks	101 · 1,292 IPv4 addresses
IPv6	94 prefixes (largest 2a11:6c7:1100::/40)
Registered in	Serbia (2) · Canada (1) · Germany (1) · France (1) · United Kingdom (1) · Hungary (1)
Record ID	236285468
Registry	BGP
Customers	see who runs inside this network →

Evidence & provenance ?

Attribution	BGP parent (inherited)
Shared handles	clustered on 20 shared RIR contact/maintainer handles
Registry names	4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (101)

⬇ export CSV

CIDR	Org name	Registry	Status	Confidence
37.59.137.104/30	Johannes M	RIPE	ASSIGNED PA	● high
79.175.70.0/24	Johannes Ernst	BGP	ANNOUNCED	● high
81.18.58.0/24	Johannes Ernst	BGP	ANNOUNCED	● high
81.168.111.0/24	Johannes Ernst	BGP	ANNOUNCED	● high
87.229.23.0/24	Johannes Ernst	BGP	ANNOUNCED	● high
192.208.1.0/24	Johannes Ernst	BGP	ANNOUNCED	● high
2a06:a002:f64::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a0b:4e07:200::/44	Johannes Ernst	BGP	ANNOUNCED	● high
2a0f:6280:1100::/44	Johannes Ernst	BGP	ANNOUNCED	● high
2a10:2f00:143::/48	Johannes Ernst	RIPE	ASSIGNED	● high
2a11:6c7::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:2::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:3::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:4::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:5::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:6::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:7::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:8::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:9::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:a::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:b::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:c::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:10::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:11::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:12::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:13::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:14::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:16::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:17::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:18::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:19::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:20::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:21::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:22::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:23::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:24::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:25::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:26::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:27::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:28::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f00::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f01::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f03::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f04::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f05::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f06::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f07::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f08::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f09::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f10::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f11::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f12::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f13::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f14::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f15::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f16::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f17::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f22::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f23::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f24::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f25::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f26::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f27::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f30::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f31::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f32::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f33::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f34::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f35::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f38::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f39::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f40::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f41::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f42::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f43::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f44::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:f45::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1100::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1200::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1300::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1400::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1600::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1700::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1800::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1900::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1a00::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1b00::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:1e01::/48	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:2000::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:2200::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:2300::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:2500::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:2600::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:3000::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a11:6c7:3100::/40	Johannes Ernst	BGP	ANNOUNCED	● high
2a14:7583:5800::/42	Johannes Ernst	BGP	ANNOUNCED	● high
2a14:7583:5840::/42	Johannes Ernst	BGP	ANNOUNCED	● high
2a14:7583:5880::/42	Johannes Ernst	BGP	ANNOUNCED	● high
2a14:7583:58c0::/42	Johannes Ernst	BGP	ANNOUNCED	● high
85.220.134.120/29	JOHANNES-NET1	RIPE	ASSIGNED PA	● low

IPv6 ranges (94)

showing the 15 largest allocations

CIDR
2a11:6c7:1100::/40
2a11:6c7:1200::/40
2a11:6c7:1300::/40
2a11:6c7:1400::/40
2a11:6c7:1600::/40
2a11:6c7:1700::/40
2a11:6c7:1800::/40
2a11:6c7:1900::/40
2a11:6c7:1a00::/40
2a11:6c7:1b00::/40
2a11:6c7:2000::/40
2a11:6c7:2200::/40
2a11:6c7:2300::/40
2a11:6c7:2500::/40
2a11:6c7:2600::/40

Footprint over time

11 weekly snapshots · JSON

101 +18 netblocks since 2026-07-05

2026-07-05 peak 101 2026-09-06

Network trust

what's this?

RPKI hygiene: A how networks compare →

99.0% of checked blocks have valid RPKI ROA coverage (100 of 101)

Possible discrepancies (2)

These blocks are registered to Johannes Ernst but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

79.175.70.0/24 /24	authorized for AS215287 — Secure Digital Apps CO WLL
81.168.111.0/24 /24	authorized for AS154383 — ZORNTECH WEB SOLUTIONS

NIC Handles

AS212895 AS215287 AS9125 DISPAISY-MNT DUMY-RIPE DUMY-RIPE HOP179-MNT HYEHOST-MNT I6P-MNT MK-NETZDIENSTE-MNT MNT-GCICOM ORG-JE52-RIPE +8 more