Autonomous system
AS11790 RANDOMHOUSE
Unclassified ARIN
Summary
Random House, Inc.
enterprise legacy
RANDOMHOUSE is the corporate network of the book publisher Random House, Inc., registered at 1745 Broadway in New York — the tower that is now Penguin Random House's headquarters. ARIN has held the AS in the company's name since 1998, and it still routes only Random House's own address space.
What it's used for
This is an enterprise network, not a provider. RIS observes 18 IPv4 prefixes totalling roughly 29,000 addresses and no IPv6, announced through just 2 observed neighbours. Two upstreams and no peering fabric is the classic shape of a company that buys transit for its own offices and applications; a network that carried other people's traffic would show peers in the hundreds.
Every announced prefix sits inside 170.171.0.0/16 and every one that resolves in ARIN comes back to Random House itself, under a single RANDOM2 network handle. There are no third-party registrants and no space borrowed from an upstream, so the routed inventory and the legal holder are the same entity throughout — worth checking in this AS range, where scattered inventories often belong to someone other than the named holder.
The space carries what a large publisher runs in-house: corporate connectivity for editorial, sales and distribution sites, plus the public-facing systems a trade publisher operates for retailers and authors.
Notable
The block is heavily deaggregated — seven separate /20s from the same /16, plus /21s, /22s, /23s and /24s carved out of them. That much fragmentation from one contiguous /16 on two upstreams generally reflects site-by-site internal allocation accumulated over decades rather than any routing strategy.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 27 prefixes · 29.18K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 27 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11790- Registry name
- RANDOMHOUSE
- Registrant
- Random House, Inc.
- Abuse contact
- domainadmin@randomhouse.com
- Registered
- 1998-12-18
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 18 with no ROA
- ROAs
- 0 authorising AS11790
- ASPA
- no ASPA record
- IRR
- 100% registered · 18 of 18 announcements
- Route objects
- 16 naming AS11790
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,783 prefixes, as published 2026-10-20. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere