Andersen Corporation — IP ranges & network footprint

Footprint over time

6 weekly snapshots · JSON

10 0 netblocks since 2026-07-05

2026-07-05 peak 10 2026-07-26

IP Ranges (10)

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CIDR	Org name	Registry	Status	Confidence
78.11.28.168/30	ANDERSEN	RIPE	ASSIGNED PA	● low
80.244.225.140/30	ANDERSEN	RIPE	ASSIGNED PA	● low
88.210.0.0/24	Andersen	RIPE	ASSIGNED PA	● low
88.210.22.0/24	Andersen	RIPE	ASSIGNED PA	● low
88.210.51.0/24	Andersen	RIPE	ASSIGNED PA	● low
158.107.0.0/16	Andersen Corp.	ARIN	DIRECT ALLOCATION	● low
194.139.243.0/24	ANDERSEN	RIPE	ASSIGNED PA	● low
195.72.212.8/29	ANDERSEN-NET	RIPE	ASSIGNED PA	● low
195.141.1.48/29	ANDERSEN-NET	RIPE	ASSIGNED PA	● low
213.216.109.148/30	ANDERSEN	RIPE	ASSIGNED PA	● low

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “Andersen” — often per-country or per-system registrations of the same brand, occasionally a different organisation sharing the name. Not counted in this organisation's own footprint.

Andersen Tommy 6 blocks
Andersen Christian 2 blocks
Andersen Consulting 2 blocks
Andersen Consulting (Dallas SMC) 1 blocks
Andersen Tax GmbH Steuerberatungsgesellschaft 1 blocks
Andersen Adam 1 blocks
ANDERSEN-TEXTILES-LTD 1 blocks
ANDERSEN_ERHVERV-TDC-Erhverv 1 blocks

Combined view of all 12 name-family clusters →

Sub-allocations under carriers

IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.

Solberg Og Andersen As via GLOBALCONNECT AS sub-allocation
VITEBSK-ANDERSENSOFT via Republican Unitary Telecommunication Enterprise Beltelecom sub-allocation
Erhverv via TDC Brands A/S sub-allocation
THORLEIF-ANDERSEN-NET via TDC Holding A/S sub-allocation
FAANDERSEN---NIELSEN-KOEBENHAVN-A-S-NET via TDC Holding A/S sub-allocation
ANDERS-ANDERSENS-RENGOERING-NET via TDC Holding A/S sub-allocation
ZACHER--ANDERSEN-NET via TDC Holding A/S sub-allocation
Colo Andersenconsulting via Equinix (EMEA) Acquisition Enterprises B.V. sub-allocation

Network trust

what's this?

RPKI hygiene: C how networks compare →

50.0% of checked blocks have valid RPKI ROA coverage (5 of 10)

Possible discrepancies (1)

These blocks are registered to Andersen Corp. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

88.210.22.0/24 /24

authorized for AS25308 — CityLanCom LTD

NIC Handles

ANDERS-8 ARTCOMS-MNT-RIPE AS6730-MNT CITYLAN-MNT DUMY-RIPE DUMY-RIPE IEA-ARIN IET-ARIN IET-ARIN INTERCOM-NOC NETIA-MNT UUNETDE-I

Netblocks	10 · 66,588 IPv4 addresses
Registered in	Russia (4) · Poland (2) · Switzerland (1) · Germany (1) · Italy (1) · United States (1)
All fragments	28 blocks across 12 clusters
Cluster ID	213479376
Registry	ARIN
Owner jurisdiction	US-MN
Customers	find customers using this network →

Attribution	GLEIF legal-entity match
Legal identity	LEI SUM1SONW1INQ6HUA9R64
Shared handles	clustered on 12 shared RIR contact/maintainer handles
Registry names	4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue