Autonomous system
AS20144 IMRS
Unclassified ARIN Non-Profit
Summary
ICANN
dns infrastructure nonprofit icann
IMRS is the Internet Management and Routing Services AS operated by ICANN.
What it's used for
- The space carries ICANN's core Internet infrastructure, specifically its DNS root server operations and engineering systems, as evidenced by netnames
ICANN-DNS-ENGINEERINGandICANN-DNS-SERVERS. - With 2304 IPv4 addresses and 6 IPv6 prefixes announced against 108 observed neighbours, the high neighbour-to-address ratio indicates a transit-heavy role for this small, specialized infrastructure block.
Notable
- Registrants are consistent with the announcer, with
ICANNlisted for five of the six largest prefixes andAmerican Registry for Internet Numbersfor theNET199block. - The address inventory is finely subdivided into six distinct IPv4 prefixes, reflecting the segmented nature of ICANN's internal corporate estate for its critical Internet functions.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 18 exchanges in 6 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.216.175 |
| IX.br (PTT.br) Fortaleza | Fortaleza, Brazil | 45.68.72.12 |
| Equinix Internet Exchange Singapore | Singapore, Singapore | 27.111.229.253 |
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.40 |
| IX.br (PTT.br) Brasília | Brasília, Brazil | 45.184.144.80 |
| IX.br (PTT.br) Curitiba | Curitiba, Brazil | 45.184.146.35 |
| Equinix Internet Exchange Paris | Paris, France | 195.42.144.88 |
| NIX.CZ - Neutral Internet eXchange for the Czech Republic | Prague, Czech Republic | 91.210.16.213 |
Transit providers
38 upstream, 0 downstream and 61 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 2.30K addresses IPv6 6 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 12 |
Registry
Allocation record
- Registry
- ARIN
- Registered
- 2001-03-30
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- l.root-servers.net
- Also known as
- IMRS
- Network type
- Non-Profit
- Scope
- Global
- Traffic ratio
- Mostly Outbound
- Peering policy
- Selective
- IRR as-set
AS-LROOT- Present at
- 22 exchanges
- Facilities
- 5 facilities
- Website
- http://www.dns.icann.org/imrs/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 19 with no ROA
- ROAs
- 0 authorising AS20144
- ASPA
- no ASPA record
- IRR
- 100% registered · 19 of 19 announcements
- Route objects
- 23 naming AS20144
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere