AS1249
University of Massachusetts - AMHERST
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About University of Massachusetts
The University of Massachusetts (UMass) is the public university system of the Commonwealth of Massachusetts. The university system includes six campuses, a satellite campus in Springfield and 25 smaller campuses throughout California and Washington with the University of Massachusetts Global.
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 128.119.0.0/16 | 65.5K |
25.9%
|
University of Massachusetts - AMHERST | US | Massachusetts | Amherst |
| 72.19.64.0/18 | 16.4K |
89.7%
|
University of Massachusetts - AMHERST | US | — | — |
| 192.80.83.0/24 | 256 |
8.2%
|
University of Massachusetts - AMHERST | US | — | — |
| 192.189.138.0/24 | 256 |
5.5%
|
University of Massachusetts - AMHERST | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS1249 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 72.19.64.0/18 | 6,794 | 2026-07-25 10:24:45 |
| 128.119.0.0/16 | 6,784 | 2026-07-25 10:24:45 |
| 192.189.138.0/24 | 6,779 | 2026-07-25 10:24:45 |
| 192.80.83.0/24 | 6,751 | 2026-07-25 10:24:45 |
Frequently Asked Questions
What is AS1249?
AS1249 is an Autonomous System Number assigned to University of Massachusetts - AMHERST. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS1249 announce?
AS1249 announces 82.4K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in United States.
Who operates AS1249?
AS1249 is operated by University of Massachusetts - AMHERST. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS1249 registered in?
AS1249 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
