Autonomous system
AS15228 OREILLYMEDIA-AS1
Unclassified ARIN
Summary
O'Reilly Media
media business
An apostrophe in the registrant, and nothing else to go on.
What it's used for
- A publisher's network. A single IPv4
/23announced from the United States, no IPv6, and one observed BGP neighbour.
Notable
- The registrant carries an apostrophe inside the company name, a character that breaks naive parsing and quoting in a field most tools treat as plain text.
- The netname drops the apostrophe entirely, reducing the name to two letters and a counter.
- The AS handle keeps the name but also drops the apostrophe, and appends the abbreviation for autonomous system number with a counter.
- Three addresses were queried for reverse DNS and none returned a name.
- The routing history begins in 2009, much later than most numbers in this range.
Interesting
- Three renderings of one company name in one record, differing in whether the apostrophe survives, is a small demonstration of why matching organisations across registry fields is unreliable. None of the three is wrong; no rule turns one into another.
- Five hundred addresses behind one upstream for a publisher means the public presence lives elsewhere, on hosting the company does not route itself. This block is the corporate network.
- A late first-seen date on a low AS number is the normal case in this range, and it separates when the number was issued from when it was put to use.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS46375 | Sonic Telecom LLC | 59 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS15228- Registry name
- OREILLYMEDIA-AS1
- Registrant
- O'Reilly Media, Inc.
- Abuse contact
- abuse@oreilly.com
- Registered
- 2014-05-20
- Last changed
- 2014-05-20
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS15228
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 5 naming AS15228
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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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