Autonomous system
AS11355 SHELL
Unclassified ARIN
Summary
Shell Information Technology International
enterprise legacy
SHELL is Shell Information Technology International, Inc. — the IT arm of the Shell oil and gas group, registered in the United States. This is a genuine case of a famous name being what it appears to be, and the prefix registrants are what confirm it.
What it's used for
Corporate enterprise networking for a global energy company: offices, refineries, trading floors, and the internet-facing edge of Shell's internal systems. RIS sees 12 v4 prefixes / 67,840 addresses, no IPv6, and 3 observed neighbours. The address count is large but the neighbour count is tiny, and that combination is the signature of a big enterprise, not a carrier — a wholesale network with 67,000 addresses would peer with hundreds of ASes. Nothing transits through this AS; it announces Shell's own space and terminates it.
Notable
Nearly the whole inventory is the legacy 134.163.0.0/16 (handle SHELL2-SRE), with the rest carved from 138.57/138.58 space under SHELL1-SER — all registered directly to Shell Information Technology International. One prefix breaks the pattern in an instructive way: 193.189.55.0/24 registers in AFRINIC to the Shell Petroleum Development Company of Nigeria. Two RIRs and two differently named registrants would be a warning sign in isolation, but both are Shell operating companies, and intra-group registration across regions is real corporate history, not brokered space.
Interesting
The /16 at 134.163.0.0 is the kind of allocation only an organisation that was on the internet early could still be sitting on, and Shell has kept it whole rather than fragmenting it. The reverse DNS sample returned nothing on the twenty addresses probed, which is a sample rather than a finding and supports no conclusion either way about the zone.
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 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 12 prefixes · 67.33K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11355- Registry name
- SHELL
- Registrant
- Shell Information Technology International, Inc.
- Abuse contact
- h.rinck@shell.com
- Registered
- 1998-07-17
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 11 with no ROA
- ROAs
- 0 authorising AS11355
- ASPA
- no ASPA record
- IRR
- 82% registered · 9 of 11 announcements
- Route objects
- 7 naming AS11355
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 1,781 prefixes, as published 2026-10-16. 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