AS557 University of Maine System
AS557 (UMAINE-SYS-AS) is registered to University of Maine System in US, through ARIN. It originates 18 prefixes in the global routing table.
17
IPv4 prefixes
1
IPv6 prefixes
292,608
IPv4 addresses
77%
RPKI valid
Registration
Who holds AS557
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS557
Handle
UMAINE-SYS-AS
Organization
University of Maine System
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
# # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # ASNumber: 557 ASName: UMAINE-SYS-AS ASHandle: AS557 RegDate: 1989-12-13 Updated: 2026-09-08 Ref: https://rdap.arin.net/registry/autnum/557 OrgName: University of Maine System OrgId: UMAN-Z Address: ITS Computing Center Address: 5752 Neville Hall Address: University of Maine City: Orono StateProv: ME PostalCode: 04469-5752 Country: US RegDate: 2019-08-07 Updated: 2026-09-08 Ref: https://rdap.arin.net/registry/entity/UMAN-Z OrgRoutingHandle: HENRY353-ARIN OrgRoutingName: Henry, Andrew OrgRoutingPhone: +1-207-581-3587 OrgRoutingEmail: awhenry@maine.edu OrgRoutingRef: https://rdap.arin.net/registry/entity/HENRY353-ARIN OrgTechHandle: BEANJ12-ARIN OrgTechName: Bean, Jonathan OrgTechPhone: +1-207-780-4392 OrgTechEmail: jonathan.bean@maine.edu OrgTechRef: https://rdap.arin.net/registry/entity/BEANJ12-ARIN OrgTechHandle: RPS32-ARIN OrgTechName: Soucy, Ray Patrick OrgTechPhone: +1-207-991-8380 OrgTechEmail: rps@maine.edu OrgTechRef: https://rdap.arin.net/registry/entity/RPS32-ARIN OrgAbuseHandle: HENRY353-ARIN OrgAbuseName: Henry, Andrew OrgAbusePhone: +1-207-581-3587 OrgAbuseEmail: awhenry@maine.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/HENRY353-ARIN OrgAbuseHandle: BEANJ12-ARIN OrgAbuseName: Bean, Jonathan OrgAbusePhone: +1-207-780-4392 OrgAbuseEmail: jonathan.bean@maine.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/BEANJ12-ARIN OrgAbuseHandle: NAR5-ARIN OrgAbuseName: Network Abuse Reports OrgAbusePhone: +1-207-581-3587 OrgAbuseEmail: abuse@maine.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/NAR5-ARIN OrgAbuseHandle: RPS32-ARIN OrgAbuseName: Soucy, Ray Patrick OrgAbusePhone: +1-207-991-8380 OrgAbuseEmail: rps@maine.edu OrgAbuseRef: https://rdap.arin.net/registry/entity/RPS32-ARIN OrgTechHandle: HENRY353-ARIN OrgTechName: Henry, Andrew OrgTechPhone: +1-207-581-3587 OrgTechEmail: awhenry@maine.edu OrgTechRef: https://rdap.arin.net/registry/entity/HENRY353-ARIN OrgRoutingHandle: RPS32-ARIN OrgRoutingName: Soucy, Ray Patrick OrgRoutingPhone: +1-207-991-8380 OrgRoutingEmail: rps@maine.edu OrgRoutingRef: https://rdap.arin.net/registry/entity/RPS32-ARIN OrgRoutingHandle: BEANJ12-ARIN OrgRoutingName: Bean, Jonathan OrgRoutingPhone: +1-207-780-4392 OrgRoutingEmail: jonathan.bean@maine.edu OrgRoutingRef: https://rdap.arin.net/registry/entity/BEANJ12-ARIN OrgNOCHandle: UNOC-ARIN OrgNOCName: UNET Network Operations Center OrgNOCPhone: +1-207-581-3587 OrgNOCEmail: NOC@lists.maine.edu OrgNOCRef: https://rdap.arin.net/registry/entity/UNOC-ARIN RTechHandle: RPS32-ARIN RTechName: Soucy, Ray Patrick RTechPhone: +1-207-991-8380 RTechEmail: rps@maine.edu RTechRef: https://rdap.arin.net/registry/entity/RPS32-ARIN RTechHandle: HENRY353-ARIN RTechName: Henry, Andrew RTechPhone: +1-207-581-3587 RTechEmail: awhenry@maine.edu RTechRef: https://rdap.arin.net/registry/entity/HENRY353-ARIN RTechHandle: BEANJ12-ARIN RTechName: Bean, Jonathan RTechPhone: +1-207-780-4392 RTechEmail: jonathan.bean@maine.edu RTechRef: https://rdap.arin.net/registry/entity/BEANJ12-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #
Routing
What AS557 announces
Prefixes originated by AS557 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
17
IPv6 prefixes
1
IPv4 addresses
292,608 (1,143 /24s)
RPKI valid
14 77%
RPKI invalid
0
RPKI not found
4
ROAs naming AS557
13
With an IRR route object
15 83%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
IPv4 (17)
64.45.64.0/1865.18.0.0/1865.18.64.0/1965.18.96.0/20130.111.0.0/16141.114.0.0/16169.244.0.0/16198.148.217.0/24198.182.161.0/24198.182.162.0/23198.202.151.0/24199.33.141.0/24204.137.240.0/24204.197.0.0/17207.166.224.0/19209.222.192.0/19209.222.192.0/24
IPv6 (1)
RPKI valid RPKI invalid no ROA covers it
Neighbors
Who AS557 is reached through
The AS just before AS557 in the paths our looking glass collectors hold, for 18 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.
ASPA
Provider authorization
AS557 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.
The 1 ASes that name AS557 as a provider
IRR
Routing registry objects
From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.
| Source | as-name | Maintained by |
|---|---|---|
| ARIN | UNIVERSITY-OF-MAINE-SYSTEM | MNT-UMAN-Z |
Route objects with origin AS557: ARIN 13 · RADB 5 · ALTDB 1
as-sets that list AS557 (16)