Esteban Carisimo

esteban.carisimo@northwestern.edu

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3215 Mudd Library

Dept. of Computer Science

Northwestern University

Hi there!

I am Esteban Carisimo, a Postdoctoral Researcher at AquaLab, a group in the Department of Computer Science at Northwestern University. My research focuses on Internet topology and infrastructure, with an emphasis on the role of governments in connectivity and content delivery. I am particularly interested in Submarine Cable Networks (SCNs), Internet Exchange Points (IXPs), Content Delivery Networks (CDNs), transit diversity, and network congestion. My work aims to enrich the public debate on digital connectivity with evidence-based insights. Being born in Latin America influences my research, particularly regarding the Internet’s evolution in the region. I earned my Doctoral (2020) and Engineering (2014) degrees from Universidad de Buenos Aires, where I was an Adjunct Professor in the Computer Science Department of the School of Engineering from 2020 to 2021.

news

Jan 20, 2025 Thrilled to announce that The Aleph, our paper on using LLMs to geolocate IP addresses through embedded hints in PTR records, has been accepted at ACM CoNEXT 2025. While the event is still a few months away (December), we are pleased to share our work in advance. You can read the paper: here!
Sep 11, 2024 Our two IMC papers, Darksim and Government Hosting Choices and both uploaded. Check them out!
Jul 31, 2024 Excited to share that that two of our papers will appear at IMC 2024 !
Jun 17, 2024 Excited to share that we have two posters accepted at SIGCOMM 2024
May 04, 2024 Thrilled to announce that our paper on the consequences of Venezuela’s 🇻🇪 crisis on its Internet infrastructure will appear at SIGCOMM 2024

selected publications

  1. Learning AS-to-Organization Mappings with Borges
    Carlos Selmo ,  Esteban Carisimo ,  Fabián E. Bustamante , and 1 more author
    In ACM IMC , Oct 2025
  2. The Aleph: Decoding DNS PTR Records With Large Language Models
    Kedar Thiagarajan ,  Esteban Carisimo ,  and  Fabián E. Bustamante
    In ACM CoNEXT , Dec 2025
  3. Ten years of the Venezuelan crisis - An Internet perspective
    Esteban Carisimo ,  Rashna Kumar ,  Caleb J. Wang , and 2 more authors
    In ACM SIGCOMM , Aug 2024