subnet.im

AS27325Databank (fka. zColo)

United StatesRegistryARIN

As of 27th September 2026, AS27325 (Databank (fka. zColo)), a network registered in the United States with ARIN, originates 10 IPv4 prefixes covering 39.7k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 4,937th-largest of the 79,525 networks we see originating IPv4, and the 1,719th-largest of 18,428 in the United States. It is seen behind 4 upstream networks, most often AS6461 (Zayo Bandwidth) and AS3356 (Lumen (Level 3)), and in front of 3 downstream networks. 9% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

10

IPv6 prefixes

1

IPv4 addresses

39.7k

IPv6 /64s

4.3B

Upstream graph

The networks AS27325 is seen behind, one and two hops out, drawn from real AS paths.

AS27325Toward the internet core
Upstream graph for AS27325: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27325Databank (fka. zC…This networkAS3356Lumen (Level 3)AS6461Zayo BandwidthAS7905Sooner TechnologyAS11427Charter Communica…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS7843Spectrum (Charter)AS20115Spectrum (Charter)

Networks observed one and two hops upstream of AS27325 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

13

adjacent networks

Upstreams
431%
Peers
646%
Downstreams
323%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS27325
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer59777
AS3356Lumen (Level 3)USPeer507104
AS11427Charter Communications IncUSPeer39145
AS7905Sooner TechnologyUSPeer3422

Prefixes

The largest blocks AS27325 originates, widest first.

Largest prefixes originated by AS27325
PrefixAddressesVisibility
64.20.224.0/198.2k81/81
66.219.32.0/198.2k81/81
208.123.64.0/198.2k81/81
64.17.0.0/204.1k81/81
64.20.224.0/204.1k81/81
96.47.208.0/204.1k81/81
208.67.240.0/212k81/81
24.227.211.0/2425681/81
192.188.253.0/2425681/81
198.252.182.0/2425681/81

Routing health

How AS27325's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid9.1%1
  • Invalid0.0%0
  • No ROA90.9%10

Propagation

  • Globally propagated90% of full-feed peers or more100.0%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 10 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS27325 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.