Advancing in Reverse: A Comprehensive Characterization of IN-ADDR. ARPA Deployment

Alfred Arouna, Ioana Livadariu, Roland Martijn van Rijswijk-Deij, Mattijs Jonker

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Reverse DNS (rDNS) is often used as a reliable data-source for
critical services, such as mail, security appliances or geolocation
services. Unlike forward DNS, rDNS remains understudied, especially from a deployment perspective. In this paper, we take steps
towards closing the gap, starting at regional Internet registries,
down to network operators in the lower hierarchy. To this end, we
use public and complementary data sources and find that around
40% of allocated IPv4 address space has well-configured rDNS entries. We highlight regional differences as rDNS deployment is
driven by mail and infrastructure providers in the developed world,
while national Internet registries and national ISPs are drivers in
the developing world. We study the use of classless delegation and
the prevalence of configuration errors breaking DNS resolution.
Finally, we observe that multi-regional organizations such as CDNs
and mail providers actively invest effort towards improving rDNS
Original languageEnglish
Title of host publicationAINTEC '23
Subtitle of host publicationProceedings of the 18th Asian Internet Engineering Conference
Place of PublicationNew York, NY, USA
PublisherAssociation for Computing Machinery
Number of pages9
ISBN (Print)979-8-4007-0939-5
Publication statusPublished - 12 Dec 2023
Event18th Asian Internet Engineering Conference, AINTEC 2023 - Hanoi, Viet Nam
Duration: 12 Dec 202314 Dec 2023
Conference number: 18


Conference18th Asian Internet Engineering Conference, AINTEC 2023
Abbreviated titleAINTEC 2023
Country/TerritoryViet Nam


  • 2024 OA procedure
  • PTR
  • RIR
  • rDNS


Dive into the research topics of 'Advancing in Reverse: A Comprehensive Characterization of IN-ADDR. ARPA Deployment'. Together they form a unique fingerprint.

Cite this