Autonomous system
AS72 SCHLUMBERGER-AS
Unclassified ARIN
Summary
SLB (Schlumberger)
enterprise legacy
A corporate network registered to Schlumberger (SCHLUMBERGER-AS), the oilfield services company now branded SLB.
What it's used for
- Global corporate and technical networking for the company's operations.
Notable
- An enterprise network, not a commercial ISP or host. The low AS number reflects an allocation from the internet's earliest years.
Interesting
- The AS holds a very large block of IPv4 addresses, a legacy of early, generous allocations to large corporations.
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
Recorded at 2 exchanges in 2 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Neutral Internet Exchange | Amsterdam, Netherlands | 193.239.117.190 |
| MegaPort IX Singapore | Singapore, Singapore | 103.41.12.46 |
Transit providers
34 upstream, 0 downstream and 34 adjacent networks observed; most-used upstreams first.
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 173 prefixes · 1.15M addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 173 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS72- Registry name
- SCHLUMBERGER-AS
- Registrant
- Schlumberger Limited
- Abuse contact
- abuse@slb.com
- Registered
- 1986-05-05
- Last changed
- 2012-04-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 1% valid · 2 valid, 136 with no ROA
- ROAs
- 5 authorising AS72
- ASPA
- no ASPA record
- IRR
- 96% registered · 132 of 138 announcements 1 other origin
- Route objects
- 207 naming AS72
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: 436 networks and 1,771 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