Internet Security Research Group — IP ranges & network footprint

IP Ranges (2)

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CIDR	Org name	Registry	Status	Confidence
23.178.112.0/24	Internet Security Research Group	ARIN	DIRECT ALLOCATION	● high
64.112.117.0/24	Internet Security Research Group	ARIN	DIRECT ALLOCATION	● high

Possibly related to this organisation

what's this?

Same name family

Separately-registered clusters whose names share “Internet Security” — 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.

Internet Security - SE 21 blocks
Internet Security - GB 2 blocks
internet-security-STK 1 blocks
internet-security-vintorix 1 blocks
Internet-Security-IPV4Mall 1 blocks
Internet Security - SC 1 blocks
Internet-security-DGN 1 blocks
Internet Security Intelligence Inc 1 blocks

Combined view of all 13 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.

SECURITY__SERVICE___INTERNET via Sudatel (Sudan Telecom Co. Ltd) sub-allocation
NATIONAL-SECURITY-INTERNET via Sudatel (Sudan Telecom Co. Ltd) sub-allocation
Internet-security-DGN via HIVELOCITY, Inc. sub-allocation
internet-security-STK via M247 Europe SRL sub-allocation
internet-security-vintorix sub-allocation
Thales Communications Security via Orange S.A. sub-allocation
Utc Climate Controls Et Security via Orange S.A. sub-allocation
Rohde Schwarz Cybersecurity via Orange S.A. sub-allocation

Network trust

what's this?

RPKI hygiene: A how networks compare →

100.0% of checked blocks have valid RPKI ROA coverage (2 of 2)

Possible discrepancies (2)

These blocks are registered to Internet Security Research Group 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.

23.178.112.0/24 /24	authorized for AS209242 — Cloudflare London, LLC
64.112.117.0/24 /24	authorized for AS209242 — Cloudflare London, LLC

NIC Handles

ISRG SECUR156-ARIN SRE151-ARIN SRE151-ARIN

Netblocks	2 · 512 IPv4 addresses
Also registered under this name	35 netblocks across 13 separate records
Record ID	235317744
Registry	ARIN
Customers	see who runs inside this network →

Attribution	BGP parent (inherited)
Shared handles	clustered on 4 shared RIR contact/maintainer handles
Registry names	1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works · report an issue