Autonomous system detail  ·  US flag US

AS793

Not announced

Last known operator Oracle Corporation. No prefixes for this AS number were observed in the RouteViews RIB.

Summary

// analyst note
AS793 has no standalone RIR record; ARIN RDAP resolves it inside the AS792-AS794 ORACLE-ASNBLOCK-ASN block. Possible Sun Microsystems lineage (Oracle's 2010 acquisition, predating the 1990 registration) is unconfirmed and left Unknown rather than inferred.
// security note
NEUTRAL/DATED: no notable public abuse signal found as of 2026-08-01; not in Spamhaus ASN-DROP or NANOG archives.
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
—
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: Likely  ·  10 sources  ·  How this page is checked

AS793 is a dormant enterprise autonomous system registered to Oracle Corporation, embedded inside ARIN's contiguous AS792–AS794 block ("ORACLE-ASNBLOCK-ASN") rather than allocated as its own standalone RIR object. As of 2026-08-01 it announces zero IPv4 and zero IPv6 prefixes and has not been visible in the global routing table since 2024-09-13, per bgp.he.net and RIPEstat's as-overview.

ARIN RDAP's top-level autnum record for the AS792–AS794 block carries a registration event dated 1990-12-13 and a last-changed event dated 2013-09-10; this is a first-party RIR registration date and is recorded here as the allocated_date rather than nulled. The registrant, ARIN org handle ORACLE-4-Z, lists a registered address at 500 Oracle Parkway, Redwood Shores, CA, while the admin/technical/routing/abuse contacts on the object point to Oracle's current Austin, TX headquarters — a separate org-entity record date (2013-08-21) exists but is not conflated with the ASN's allocation date.

Historically AS793 originated 139.185.0.0/17 (32,768 addresses, last seen 2024-09-13) and 148.87.112.0/20 (4,096 addresses, first seen 2001-07-12), both now inactive. CAIDA ASRank places it at rank 79,459 with cliqueMember and seen both false, and a customer cone of a single ASN with zero prefixes and zero addresses; no upstreams are currently observed. bgp.he.net's one historical IPv4 peer, AS8966 (Etisalat), is not corroborated by CAIDA's current peer degree of zero. No PeeringDB net object exists for AS793, and no AS793-specific peering policy was found published by Oracle.

Public abuse signal
none found as of 2026-08-01 — AS793 does not appear in the Spamhaus ASN-DROP list, and a NANOG mailing-list archive search for "AS793" returned zero matches.
Bogon flag discrepancy
bgp.he.net's cached page carries a legacy "announces bogons" notation not corroborated by bgp.tools's current zero-prefix, no-bogon state — treated as a stale label rather than a live signal.
Unverifiable feeds
AbuseIPDB and Cisco Talos Reputation Center returned HTTP 403 and AlienVault OTX returned HTTP 404, so those reputation sources could not be independently checked and are recorded as Unknown, not clean.
RPKI
not evaluated for AS793 specifically; with zero current announcements there is no active origination to validate against a ROA.
Operator
Oracle Corporation (ARIN org handle ORACLE-4-Z) [Confirmed] — rdap.arin.net/registry/autnum/793, oracle.com/corporate
Country / RIR
US, ARIN [Confirmed] — ARIN RDAP autnum
Allocated
1990-12-13 (ARIN RDAP autnum top-level registration event on the AS792–AS794 block); last changed 2013-09-10 [Confirmed] — ARIN RDAP autnum top-level events
Org status
RIR record status Active on the AS792–AS794 block per ARIN RDAP; operationally dormant/unannounced since 2024-09-13 — a routing-visibility state, not a deregistration [Confirmed] — ARIN RDAP autnum
Contacts
abuse contact "Network Information Systems Abuse Management" (NISAM-ARIN) — abuse@oracleemaildelivery.com and network-contact_ww_grp@oracle.com; technical POC JKD7-ARIN flagged unvalidated by ARIN since 2016-11-29; registered address 500 Oracle Parkway, Redwood Shores, CA 94065; admin/technical/routing/abuse contacts list 2300 Oracle Way, Austin, TX 78741
[Confirmed] — ARIN RDAP autnum

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-08-01 — not in Spamhaus ASN-DROP or NANOG archives; a legacy "announces bogons" label on bgp.he.net is not corroborated by bgp.tools; AbuseIPDB, Talos, and OTX could not be checked (403/403/404)

[Likely] — spamhaus.org/drop/asndrop.json, bgp.he.net/AS793, bgp.tools/as/793

Network & routing

Network type
enterprise/corporate ASN embedded in the AS792–AS794 "ORACLE-ASNBLOCK-ASN" block, not a standalone RIR object; not a public transit or eyeball ISP network [Confirmed] — ARIN RDAP autnum
Size
dormant — 0 IPv4/IPv6 prefixes currently announced; historically 139.185.0.0/17 (32,768 addrs, last seen 2024-09-13) and 148.87.112.0/20 (4,096 addrs, first seen 2001-07-12); customer cone = 1 ASN, 0 prefixes, 0 addresses; CAIDA AS rank 79,459
[Confirmed] — RIPEstat, CAIDA ASRank, bgp.he.net (2026-08-01)
Routing/peering
NOT currently announced — not visible in the global routing table since 2024-09-13; 0 upstreams observed (CAIDA asnDegree.provider=0); 1 historical IPv4 peer, AS8966 Etisalat, per bgp.he.net, not corroborated by CAIDA's current peer degree of 0 [Confirmed for dormancy; Likely for the historical peer]. No PeeringDB net object for AS793 and no published AS793-specific peering policy [Confirmed]
RPKI
with zero current announcements there is no active origination to validate against a ROA; not evaluated specifically for AS793 [Unknown]
Notable usage
none identified beyond legacy corporate address space (139.185.0.0/17, 148.87.112.0/20); no NANOG mailing-list discussion found [Confirmed]
Related ASNs
AS792 and AS794 (same contiguous ARIN "ORACLE-ASNBLOCK-ASN" block, same registrant) [Confirmed]
Analyst note
AS793 has no standalone RIR record — ARIN RDAP resolves it inside the AS792–AS794 block. Whether it traces back to Sun Microsystems (Oracle's 2010 acquisition, predating the 1990 registration) is unconfirmed and is left Unknown rather than inferred.
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · as observed by RouteViews at 2026-09-20 · one collector view, not a global census
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.