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AS25623

CISN2 Enterprise Communications

United States (US)

ASN Information

AS NumberAS25623
AS NameCISN2
OrganizationCISN2 - TowardEX Technologies International, Inc.
Also known asNot available
CountryUnited States (US)
RegistryARIN
ASN TypeEnterprise
Last Seen
Announcement Count8
IPv4 Prefix Count4
IPv6 Prefix Count4
RPKI StatusValid ×4Unknown (could not be determined) ×4
IRR RecordsView IRR route objects
Websitehttp://cisn2.net ↗

AS Path to AS25623

  1. 37271Workonline Communications(Pty) Ltd - Workonline Communications(Pty) Ltd
  2. 3356LEVEL3 - Level 3 Parent, LLC
  3. 27552TWDX - TowardEX Technologies International, Inc.
  4. 25623Origin

Most common path, seen 12× in route collector data, latest at a collector in Johannesburg (2026-10-17 15:01:36 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 21 peer session(s)São Paulo: 33 peer session(s)Johannesburg: 36 peer session(s)Singapore: 42 peer session(s)Amsterdam: 44 peer session(s)London: 57 peer session(s)Eugene, OR: 112 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 (8)

View All →
PrefixFamilyRPKILast Seen
8.20.191.0/24IPv4ValidNot looked up yet
162.219.97.0/24IPv4ValidNot looked up yet
199.114.249.0/24IPv4ValidNot looked up yet
199.114.251.0/24IPv4ValidNot looked up yet
2001:4830:200::/40IPv6Not checkedNot looked up yet
2001:4830:2070::/48IPv6Not checkedNot looked up yet
2001:4830:3100::/48IPv6Not checkedNot looked up yet
2a06:ee05::/32IPv6Not checkedNot looked up yet

Peers (2)

View All →
ASNameRelationshipPathsLast Seen
AS27552TWDX - TowardEX Technologies International, Inc.Upstream (inferred)516
AS22147PACKETSURGE - Open Contributors Corporation for Advanced Internet Development, Inc.Upstream (inferred)346

Neighbours seen next to AS25623 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 (1)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
MASS-IXBoston, US206.53.143.922001:504:47::6417:0:110GNo

IX ports registered by AS25623 (self-reported by the network).

Interconnection Facilities (3)

FacilityCityCountry
Lumen BostonCambridgeUnited States
Digital Realty NYC (111 8th Ave)New YorkUnited States
Hub Express SystemSomervilleUnited States

Data centres where AS25623 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-CISN2
Member of AS-SETsSee IRR page
Peering policyRestrictive
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
TrafficNot available
Traffic ratioNot Disclosed
Geographic scopeNot Disclosed
Max prefixes (IPv4 / IPv6)10 / 5
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS25623.

Only contacts the network has chosen to publish are shown.

Upstreams (2)

ASNameRelationshipPathsLast Seen
AS27552TWDX - TowardEX Technologies International, Inc.Upstream (inferred)516
AS22147PACKETSURGE - Open Contributors Corporation for Advanced Internet Development, Inc.Upstream (inferred)346

Downstreams (0)

No downstream ASNs found for AS25623 in current data sources.

Registry and network details

Registered holderCISN2 - TowardEX Technologies International, Inc.
RegisteredYes
Peering policyRestrictive
IRR AS-setAS-CISN2
Registry record last modifiedNot available
MaintainersNot available
Internet exchanges1
Facilities3
Network profile updated

Data updated . See limitations.