HomeASN LookupAS27

AS27

🇺🇸

UMDNET - University of Maryland38c154f2604f5f7a5a6513638bba8b38

ARINassigned
Announced Prefixes (BGP)
11total
5 IPv46 IPv6
IPv4 Addresses ⓘ
Allocated (RIR)133,632
Announced (BGP)134,656
IPv6 Addresses ⓘ
Allocated (RIR)0
Announced (BGP)7.2×10^24
Prefix Limit (IPv4)
200
Prefix Limit (IPv6)
20
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
8/28/1984

Announced Prefixes

(BGP)11
|
Prefix
RPKI
IRR
Last Seen
128.8.0.0/16
No ROA
RADB
5/15/2026
129.2.0.0/16
No ROA
RADB
5/15/2026
192.54.94.0/23
No ROA
RADB
5/15/2026
192.54.96.0/21
No ROA
RADB
5/15/2026
192.54.100.0/22
No ROA
RADB
5/15/2026
2605:880::/48
No ROA—5/15/2026
2605:880:1::/48
No ROA—5/15/2026
2605:880:10::/48
No ROA—5/15/2026
2605:880:20::/48
No ROA—5/15/2026
2605:880:22::/48
No ROA—5/15/2026
1–10 of 11
1 / 2

Allocated Prefixes

(RIR)4
Prefix
Country
RIR
Status
128.8.0.0/16🇺🇸 USARINallocated
129.2.0.0/16🇺🇸 USARINallocated
192.54.94.0/23🇺🇸 USARINallocated
192.54.96.0/21🇺🇸 USARINallocated
ASPA
No ASPA
External Links
ARIN WhoisHurricane Electric BGPRIPEstatPeeringDB
API
Open
GEThttps://api.ipctl.io/v1/asn/27

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/27" | jq