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AS7203

LeaseWeb USA / SFO-12

United States (US)

ASN Information

AS NumberAS7203
AS NameLEASEWEB-USA-SFO
OrganizationLEASEWEB-USA-SFO - Leaseweb USA, Inc.
Also known asNot available
CountryUnited States (US)
RegistryARIN
ASN TypeContent
Last Seen
Announcement Count170
IPv4 Prefix Count157
IPv6 Prefix Count13
RPKI StatusValid ×48Unknown (could not be determined) ×2
IRR RecordsAvailable (322 route objects)
Websitehttps://www.leaseweb.com/contact#usa ↗

AS Path to AS7203

  1. 16552DIGICERT - Tiggee LLC
  2. 3257GTT-BACKBONE GTT Communications Inc.
  3. 7203Origin

Most common path, seen 19× in route collector data, latest at a collector in Singapore (2026-10-16 09:23:51 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 18 peer session(s)Johannesburg: 19 peer session(s)Singapore: 26 peer session(s)Amsterdam: 27 peer session(s)London: 35 peer session(s)Eugene, OR: 58 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (170)

View All →
PrefixFamilyRPKILast Seen
23.19.88.0/21IPv4ValidNot looked up yet
23.19.164.0/22IPv4ValidNot looked up yet
23.19.196.0/24IPv4Not checkedNot looked up yet
23.19.197.0/24IPv4Not checkedNot looked up yet
23.19.198.0/24IPv4ValidNot looked up yet
23.19.212.0/22IPv4ValidNot looked up yet
23.19.252.0/22IPv4ValidNot looked up yet
23.81.8.0/22IPv4ValidNot looked up yet

Peers (4)

View All →
ASNameRelationshipPathsLast Seen
AS174COGENT-174 - Cogent Communications, LLCUpstream (inferred)271
AS3257GTT-BACKBONE GTT Communications Inc.Upstream (inferred)218
AS3356LEVEL3 - Level 3 Parent, LLCUpstream (inferred)72
AS286KPN GTT Communications Inc.Upstream (inferred)Inferred—

Neighbours seen next to AS7203 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (0)

IX Updates →

No Internet Exchange ports are registered for AS7203.

IX ports registered by AS7203 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS7203.

Data centres where AS7203 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS7203
Member of AS-SETsAS-LEASEWEB-US, AS8218:AS-US-CUSTOMERS, AS-GTTCUST6, AS-NOBIS
Peering policyNo
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
TrafficNot available
Traffic ratioHeavy Outbound
Geographic scopeNot Disclosed
Max prefixes (IPv4 / IPv6)500 / 100
Unicast / IPv6 / MulticastYes / Yes / No
Looking glasshttps://lg.leasewebstatus.com/ ↗
Route serverNot available

Contact Information (0)

No public contacts are registered for AS7203.

Only contacts the network has chosen to publish are shown.

Upstreams (4)

ASNameRelationshipPathsLast Seen
AS174COGENT-174 - Cogent Communications, LLCUpstream (inferred)271
AS3257GTT-BACKBONE GTT Communications Inc.Upstream (inferred)218
AS3356LEVEL3 - Level 3 Parent, LLCUpstream (inferred)72
AS286KPN GTT Communications Inc.Upstream (inferred)Inferred—

Downstreams (0)

No downstream ASNs found for AS7203 in current data sources.

Registry and network details

Registered holderLEASEWEB-USA-SFO - Leaseweb USA, Inc.
RegisteredYes
Peering policyNo
IRR AS-setAS7203
Registry record last modifiedNot available
MaintainersNot available
Internet exchanges0
Facilities0
Network profile updated

Data updated . See limitations.