subnet.im

AS10886University of Maryland

United StatesRegistryARIN

As of 22nd October 2026, AS10886 (University of Maryland), a network registered in the United States with ARIN, originates 9 IPv4 prefixes covering 12.5k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 9,280th-largest of the 79,655 networks we see originating IPv4, and the 2,896th-largest of 18,475 in the United States. It is seen behind 9 upstream networks, most often AS6461 (Zayo Bandwidth) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 21 downstream networks. 38% 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

9

IPv6 prefixes

4

IPv4 addresses

12.5k

IPv6 /64s

25.3M

Upstream graph

The networks AS10886 is seen behind, one and two hops out, drawn from real AS paths.

AS10886Toward the internet core
Upstream graph for AS10886: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS10886University of Mar…This networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6461Zayo BandwidthAS11164Internet2 I2PXAS13030Init7 (Switzerlan…AS16552Tiggee LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS2152CENIC - CalRENAS2497Internet Initiati…

Networks observed one and two hops upstream of AS10886 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

63

adjacent networks

Upstreams
914%
Peers
3352%
Downstreams
2133%

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

Upstreams of AS10886
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer4,97764
AS1299Arelion (fka. Telia Carrier)SEPeer2,65386
AS3356Lumen (Level 3)USPeer1,96665
AS11164Internet2 I2PXUSPeer1,66369
AS174Cogent Communications, LLCUSPeer1,15749
AS3257GTT Communications Inc.USPeer98934
AS11537Internet2USPeer2082
AS42WoodyNet, Inc.USPeer138138
AS293ESnetUSPeer1351

Prefixes

The largest blocks AS10886 originates, widest first.

Largest prefixes originated by AS10886
PrefixAddressesVisibility
206.196.160.0/198.2k76/77
206.196.176.0/212k76/77
65.127.220.0/2351276/77
209.201.74.0/2351276/77
38.124.249.0/2425676/77
63.239.135.0/2425676/77
65.113.61.0/2425676/77
199.7.91.0/2425677/77
206.196.191.0/2425676/77
2001:468:c00::/4016.8M × /6463/64

Routing health

How AS10886'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

  • Valid38.5%5
  • Invalid0.0%0
  • No ROA61.5%8

Propagation

  • Globally propagated90% of full-feed peers or more100.0%13
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

IPv6 — 4 prefixes

  • /4016.8M × /6425.0%1
  • /418.4M × /6425.0%1
  • /4865.5k × /6450.0%2

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS10886 started or stopped in this period.

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