asn.dev

Autonomous system

AS2734 CORESITE

Hosting ARIN NSP

IPv4 addresses 49.15K 32 prefixes
IPv6 prefixes 9 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 10 recorded by PCH
Upstreams 9 19 downstream
Flagged prefixes 0 none

Summary

CoreSite

United States · AI-generated

colo datacenter

A network of CoreSite, a US carrier-neutral data-center and colocation operator (owned by American Tower). Handle CORESITE.

What it's used for

  • Colocation, interconnection, and cross-connect services across CoreSite's campuses in major US metros.

Notable

  • An IP here identifies the CoreSite facility, not the tenant renting space or running gear inside it.
  • CoreSite runs dense interconnection hubs where many networks and cloud on-ramps meet.

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

Full topology · Graph

Internet exchanges

Recorded at 10 exchanges in 1 country, largest first.

ExchangeLocationTheir address
Coresite - Any2 WestLos Angeles, United States206.72.210.244
Any2 CaliforniaLos Angeles, United States206.72.210.244
DE-CIX New YorkNew York, United States2001:504:36::aae:0:1
New York International Internet ExchangeNew York, United States2001:504:1::a500:2734:1
FL-IX - The Florida Internet Exchange / Community IX - FloridaMiami, United States206.41.108.19
San Francisco Metropolitan Internet ExchangeSan Francisco, United States206.197.187.10
DE-CIX ChicagoChicago, United States149.112.11.61
Massachusetts Internet ExchangeBoston, United States206.53.143.10

Transit providers

9 upstream, 19 downstream and 37 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC3,960
AS2914NTT America, Inc.476
AS3257GTT Communications Inc.352
AS24482SG.GS86
AS3303Swisscom (Schweiz) AG65
AS17639Converge ICT Solutions Inc.65
AS9002RETN Limited42
AS25091IP-Max SA18

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 32 prefixes · 49.15K addresses IPv6 9 prefixes

CountryNamePrefixes
USUnited States of America41

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS2734
Registry name
CORESITE
Registrant
CoreSite
Abuse contact
abuse@coresite.com
Registered
2009-09-01
Last changed
2012-03-02
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
CoreSite
Network type
NSP
Scope
North America
Traffic ratio
Balanced
Peering policy
Open
IRR as-set
AS-CORESITE
Present at
14 exchanges
Facilities
29 facilities
Website
http://www.coresite.com

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 86 valid, 0 with no ROA
ROAs
91 authorising AS2734
ASPA
4 declared providers
IRR
100% registered · 86 of 86 announcements
Route objects
176 naming AS2734

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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

Cross-check