AS40627 — RC-COLO1

Network type: hosting

AS40627 announces 15 IPv4 prefixes covering 16,896 addresses and 1 IPv6 prefixes.

About this network

The AS handle RC-COLO1 is held by RingCentral Inc.

What it's used for

• The address space carries RingCentral's cloud communications infrastructure, evidenced by netnames such as RC-PRO-3, RC-PRO-5, US-RINGCENTRAL-20010720, and RINGCENTRALINC-AP.
• The AS announces 16,896 IPv4 addresses across 24 prefixes and 1 IPv6 prefix, while maintaining 173 observed neighbours; this high neighbour count relative to the address inventory indicates a transit-heavy role for a large-scale enterprise network.
• Traffic from this AS consists of VoIP media and signalling, web/API endpoints, and branch backhaul for RingCentral's global cloud-based phone and messaging services.

Notable

• All registrants in the RDAP data align with the announcer, consistently listing RingCentral Inc or RingCentral, Inc.
• The address inventory is finely subdivided into multiple /22, /23, and /24 blocks, reflecting an internal corporate estate with site-by-site segmentation rather than a single contiguous allocation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 66.81.240.0/24
• 66.81.242.0/23
• 66.81.244.0/23
• 66.81.246.0/24
• 66.81.248.0/22
• 66.81.252.0/23
• 80.81.128.0/20
• 103.44.68.0/22
• 103.129.102.0/23
• 104.245.56.0/21
• 185.23.248.0/22
• 192.209.24.0/21
• 199.68.212.0/22
• 199.255.120.0/22
• 208.87.40.0/22
• 2620:77::/48

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS7922 Comcast Cable Communications, LLC
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS2914 NTT America, Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS34549 meerfarbig GmbH & Co. KG
• AS7018 AT&T Enterprises, LLC
• AS50304 Blix Solutions AS
• AS4637 Telstra Global
• AS24482 SG.GS
• AS22652 Videotron Ltee
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC
• AS12552 GlobalConnect AB
• AS1836 green.ch AG
• AS48362 Stadtwerke Feldkirch
• AS37100 SEACOM Limited
• AS20485 Joint Stock Company TransTeleCom
• AS50300 CustodianDC Limited
• AS34927 iFog GmbH
• AS3741 Dimension Data
• AS12779 IT.Gate S.p.A.
• AS48185 team.blue NV

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS7922 Comcast Cable Communications, LLC
• AS4755 TATA Communications formerly VSNL is Leading ISP
• AS2914 NTT America, Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS34549 meerfarbig GmbH & Co. KG
• AS7018 AT&T Enterprises, LLC
• AS50304 Blix Solutions AS
• AS4637 Telstra Global
• AS24482 SG.GS
• AS22652 Videotron Ltee
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC
• AS48185 team.blue NV
• AS3741 Dimension Data
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS20485 Joint Stock Company TransTeleCom
• AS1836 green.ch AG
• AS34927 iFog GmbH
• AS12779 IT.Gate S.p.A.
• AS48362 Stadtwerke Feldkirch
• AS50300 CustodianDC Limited

Internet exchanges

• DE-CIX Frankfurt — Frankfurt, Germany
• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Equinix Internet Exchange Singapore — Singapore, Singapore
• Equinix Internet Exchange Ashburn — Ashburn, United States
• Seattle Internet Exchange — Seattle, United States
• JPIX Tokyo — Tokyo, Japan
• Toronto Internet Exchange — Toronto, Canada
• Equinix Internet Exchange Chicago — Chicago, United States
• Singapore Internet Exchange — Singapore, Singapore
• SwissIX — Zurich, Switzerland
• Equinix Internet Exchange Sydney — Sydney, Australia
• Equinix Internet Exchange Dallas — Dallas, United States
• Equinix Internet Exchange San Jose (Bay Area) — San Jose, United States
• Equinix Internet Exchange Miami — Miami, United States
• Equinix Internet Exchange Palo Alto — Palo Alto, United States
• Equinix Internet Exchange Seattle — Seattle, United States
• Equinix-LA(former Paix) — Los Angeles, United States