IONOS SE

Data as of 2026-08-09
GLEIF verified
Complete entity footprint
4 linked clusters · 1,438 netblocks · 938,290 IPv4 addresses · 323 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family and shared operating domain pbiaas.com — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
54930038KPLOYRDHV375
Registered name
IONOS SE
Jurisdiction
DE
Ultimate parent
United Internet AG
3VEKWPJHTD4NKMBVG947
Cluster stats
Netblocks1,287 · 820,018 IPv4 addresses
IPv6 273 prefixes (largest 2001:8d8::/29)
Registered in Germany (988) · United States (92) · United Kingdom (55) · Spain (12) · Austria (8) · Netherlands (4)
All fragments 1,456 blocks across 10 clusters
Cluster ID217748822
RegistryBGP
Owner jurisdictionDE
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 54930038KPLOYRDHV375
Shared handles clustered on 37 shared RIR contact/maintainer handles
Registry names 13 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

7 weekly snapshots · JSON
1,439 +48 netblocks since 2026-07-05
2026-07-05 peak 1,439 2026-08-09

IP Ranges (1,287)

showing 50 of 1,287 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
5.250.176.0/21 IONOS SE BGP ANNOUNCED ● high
5.250.184.0/21 IONOS SE BGP ANNOUNCED ● high
31.70.64.0/18 IONOS SE BGP ANNOUNCED ● high
31.70.128.0/19 IONOS SE BGP ANNOUNCED ● high
31.70.160.0/21 IONOS SE BGP ANNOUNCED ● high
37.49.236.42/32 IONOS SE PEERINGDB ASSIGNED ● high
46.16.72.0/21 IONOS SE BGP ANNOUNCED ● high
50.21.176.0/20 IONOS Inc. ARIN DIRECT ALLOCATION ● high
62.151.160.0/21 IONOS SE BGP ANNOUNCED ● high
62.151.176.0/21 IONOS SE BGP ANNOUNCED ● high
65.38.96.0/22 IONOS SE BGP ANNOUNCED ● high
66.175.232.0/21 IONOS SE BGP ANNOUNCED ● high
66.179.80.0/22 IONOS SE BGP ANNOUNCED ● high
66.179.92.0/22 IONOS Inc. ARIN DIRECT ALLOCATION ● high
66.179.136.0/22 IONOS SE BGP ANNOUNCED ● high
66.179.188.0/22 IONOS SE BGP ANNOUNCED ● high
66.179.208.0/22 IONOS Inc. ARIN DIRECT ALLOCATION ● high
66.179.240.0/22 IONOS SE BGP ANNOUNCED ● high
66.179.248.0/21 IONOS SE BGP ANNOUNCED ● high
67.217.240.0/21 IONOS Inc. ARIN DIRECT ALLOCATION ● high
69.48.200.0/21 IONOS SE BGP ANNOUNCED ● high
70.35.192.0/20 IONOS SE BGP ANNOUNCED ● high
74.208.0.0/16 IONOS SE BGP ANNOUNCED ● high
74.208.38.0/23 IONOS SE BGP ANNOUNCED ● high
74.208.60.0/22 IONOS SE BGP ANNOUNCED ● high
74.208.96.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.98.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.100.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.104.0/22 IONOS SE BGP ANNOUNCED ● high
74.208.110.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.163.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.172.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.188.0/23 IONOS SE BGP ANNOUNCED ● high
74.208.204.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.209.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.221.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.224.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.226.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.241.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.243.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.246.0/24 IONOS SE BGP ANNOUNCED ● high
74.208.254.0/24 IONOS SE BGP ANNOUNCED ● high
77.68.0.0/17 IONOS SE BGP ANNOUNCED ● high
77.68.66.0/23 IONOS SE BGP ANNOUNCED ● high
77.68.110.0/23 IONOS SE BGP ANNOUNCED ● high
78.137.96.0/21 IONOS SE BGP ANNOUNCED ● high
79.99.40.0/21 IONOS SE BGP ANNOUNCED ● high
79.99.42.0/24 IONOS SE BGP ANNOUNCED ● high
80.81.192.123/32 IONOS SE PEERINGDB ASSIGNED ● high
80.81.193.123/32 IONOS SE PEERINGDB ASSIGNED ● high

IPv6 ranges (273)

showing the 15 largest allocations
CIDR
2001:8d8::/29
2a02:2478::/29
2a0d:7f00::/29
2001:8d8::/32
2001:ba0::/32
2607:f1c0::/32
2a00:1a68::/32
2a00:da00::/32
2a01:239::/32
2a02:2478::/32
2001:8d8::/37
2001:8d8:f800::/37
2001:8d8:800::/38
2001:8d8:400::/39
2001:8d8:600::/39

Domains hosted in this network

what's this?
ntp.org schlund.de home.pl connman.net gmx.net 1und1.de analytics-debugger.com web.de online.de yoyo.org backname.io mail.com imap.web.de ui-portal.de mam.dev codemeter.com ui-portal.com seamlessaccess.org gmx.ch callromania.ro

Customer-delegated space

how is this classified?
Unclassified 1,363 (105.9%)
Customer access pools 40 (3.1%)
Operator infrastructure (named) 36 (2.8%)

Corporate group (2 confirmed entities)

+204 additional unconfirmed candidates not shown — full list (JSON)

Network trust

what's this?
RPKI hygiene: A how networks compare →
97.7% of checked blocks have valid RPKI ROA coverage (1,406 of 1,439)
Possible discrepancies (6)

These blocks are registered to IONOS SE but cryptographically authorized for a different, unrelated network (4 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2a00:1a68::/32 /32 authorized for AS38955 — World4You Internet Services GmbH
81.19.144.0/20 /20 authorized for AS38955 — World4You Internet Services GmbH
185.132.32.0/22 /22 authorized for AS15418 — Fasthosts Internet Limited
162.252.156.0/22 /22 authorized for AS20718 — ARSYS INTERNET S.L.U.
185.122.183.0/24 /24 authorized for AS6724 — Strato GmbH
185.127.30.0/24 /24 authorized for AS6724 — Strato GmbH

NIC Handles

11INT 1AD-ARIN 1NO-ARIN 1NO-ARIN 1NO-ARIN 1NOC-ARIN ABDE2-RIPE ARO12-RIPE ARSYS-RIPE-MNT AS15418-MNT AS15418-MNT AS54548 +25 more