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	Prefix	Description
	72.19.64.0/18	University of Massachusetts - AMHERST
	128.119.0.0/16	University of Massachusetts - AMHERST
	192.80.83.0/24	University of Massachusetts - AMHERST
	192.189.138.0/24	University of Massachusetts - AMHERST

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS1968	UMASSNET	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS1968	UMASSNET	✔	✔
	AS168	University of Massachusetts - AMHERST	✘	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS168	University of Massachusetts - AMHERST	✘	✔

ASHandle:       AS1249
OrgID:          UNIVER-6
ASName:         FIVE-COLLEGES-AS
ASNumber:       1249
RegDate:        1991-04-18
Updated:        2024-11-06
TechHandle:     PG138-ARIN
Source:         ARIN



OrgID:          UNIVER-6
OrgName:        University of Massachusetts - AMHERST
CanAllocate:    
Street:         University Computing Services
Street:         Lederle Graduate Research Center
City:           Amherst
State/Prov:     MA
Country:        US
PostalCode:     01003
RegDate:        1986-04-03
Updated:        2024-11-25
OrgAdminHandle: JFD16-ARIN
OrgTechHandle:  ZU64-ARIN
OrgAbuseHandle: ONS2-ARIN
OrgNOCHandle:   ZU64-ARIN
Source:         ARIN





OrgAdminHandle:       JFD16-ARIN
OrgAdminName:         John Doyle
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ZU64-ARIN
OrgTechName:           Hostmaster
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ONS2-ARIN
OrgAbuseName:          OIT Network Services
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         ZU64-ARIN
OrgNOCName:            Hostmaster
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           PG138-ARIN
TechName:             Peter Gutierrez
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:26:31Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as10578:as-umassnet	9
RIPE	as-aunanet	298
RADB	as-comcast-edia	2752
RADB	as-prole	1197
RADB	as198949:as-sd	3765
RIPE	as-ono-ups	301
LEVEL3	as-level3-origins-na	0
LEVEL3	as-as209-cust	1818