INCIDENT · DDOS · UTC --:--:-- · DESNIC.NET SEV-1 · MITIGATION ACTIVE · INCIDENT DESNIC-INC-2026-0512-01
RIR · TIER 0 EST. 2019 / RECHARTERED 2024 INDEPENDENT REGISTRY PE-BACKED · MERIDIAN ORBIT CAPITAL

Coordinating IPv4 space for everything off-world.

DESNIC is the registry of record for IPv4 prefix allocations to space-based network endpoints — orbital constellations, lunar relays, deep-space probes, and station segments operating under the Solar System Internet (SSI) and Bundle Protocol (DTN) frameworks. We coordinate with member operators, partner agencies, and standards bodies to keep the namespace consistent from LEO to L4.

Total Allocated14,237,696 Active Operators147 Reserved Prefixes2,883,584 Last Block Issued03 May 2026
// LIVE REGISTRY FEED● STREAMING
ASN 401208  HELION-ORBITAL-1
  198.51.16.0/22   activated 2026-05-09
  inherits: 198.51.0.0/16

ASN 401255  ERIDANI-LUNAR-GATEWAY
  203.0.113.0/24   activated 2026-05-07
  delegation: desnic → eridani-noc

ASN 401301  SOLSTICE-LUNAR-RELAY
  198.18.64.0/22   provisional
  tx-window: 2026-Q3

ASN 401488  VEGER-PROBE-RETURN
  198.18.160.0/24  reactivated 2026-05-04
  remarks: contact reacquired after 47y

▸ rdap.desnic.net  : DEGRADED  rtt 1840ms · loss 34%
▸ whois.desnic.net : DEGRADED  rtt 2210ms · loss 41%
▸ irr.desnic.net   : UNREACHABLE  scrubbing engaged
⚠ DDoS IN PROGRESS · L7 + UDP REFLECTION · ~218 Gbps peak
INCIDENT › SEV-1 DDoS in progress — incident DESNIC-INC-2026-0512-01 opened against whois, rdap, and irr endpoints. Composite volume ~218 Gbps / 41 Mpps; reflection and L7 components. Scrubbing engaged at 14:38Z; expect elevated latency and intermittent query failures. Read-only registry data continues to be served from mirrors. Updates posted to desnic.net/status. Read full report ▸

About the registry DOC § 1.0

A coordinated namespace for spacecraft and the in-between.

The Deep Space Network Info Center was chartered to address a specific coordination problem: as commercial constellations, lunar infrastructure programs, and interplanetary missions began deploying IP-addressable endpoints at scale, the existing terrestrial registry model — bound to geography and national jurisdictions — left no obvious home for assets that physically reside in orbit, on other bodies, or in transit between them.

DESNIC operates under its independent community charter covering the 198.18.0.0/15 and portions of 192.0.2.0/24, 198.51.100.0/24, and 203.0.113.0/24 when used in conjunction with Bundle Protocol (BPv7, RFC 9171) endpoints. Operating capital is provided by Meridian Orbit Capital Partners III, L.P., a private-equity vehicle specializing in orbital and cislunar infrastructure; governance remains community-led and independent of investor direction per the 2024 recharter agreement. Our remit covers allocation, route-object publication, reverse-DNS delegation, and contact-of-record maintenance for spacecraft-and-segment IPv4 resources.

FUNCTION 01REG·001
IPv4 allocation

Prefix delegations from /27 (single spacecraft bus) to /16 (full constellation), governed by the published needs-justification policy.

FUNCTION 02REG·002
Route coordination

IRR objects, ROAs, and store-and-forward path advertisements for DTN-bearing prefixes via the dsn-irr database.

FUNCTION 03REG·003
Contact registry

Authoritative NOC, abuse, and orbital-element contacts — queryable via whois/RDAP under the desnic schema.

Whois & RDAP lookup PORT 43 · HTTPS

Active allocations SAMPLE · n=12 of 1,488

Prefix Holder ASN Segment Status
SHOWING 12 OF 1,488 ALLOCATIONS · EXPORT FULL CSV ▸

Allocation policy DSN-POL-2026.1

How space gets handed out.

Requests are evaluated against the three-factor needs assessment: (1) demonstrated technical infrastructure, (2) operational segment classification, and (3) 24-month utilization forecast with link-budget justification.

POLICY § 2.1MIN-ALLOC
Minimum allocation size

/27 for single-spacecraft buses. /24 for clustered missions. /22 minimum for constellations with ≥48 active endpoints. Sub-/27 assignments are not portable.

Median request size 2025: /23

POLICY § 2.4SEG-CLASS
Segment classification

Orbital (LEO/MEO/GEO), Cislunar, Lunar Surface, Lagrangian, and Deep Space (heliocentric). Each carries distinct RTT-tolerance and reverse-DNS rules.

5 classes · 12 sub-classes

POLICY § 3.0DTN-BIND
DTN binding requirement

Allocations to endpoints with one-way light-time > 4s must publish a corresponding Bundle Protocol endpoint identifier (ipn:NODE.SERVICE) per RFC 9171 within 30 days of activation.

98.2% compliance Q1 2026

POLICY § 4.2DECOMM
End-of-mission reclamation

Prefixes are reclaimed 180 days after confirmed loss-of-signal or disposal-orbit insertion. A 24-month quarantine prevents reassignment to prevent stale-route conflicts.

Quarantine pool: 5.2M addresses

Relevant standards IETF · CCSDS · ITU-R

RFC 9171Bundle Protocol Version 72022
RFC 9172Bundle Protocol Security (BPSec)2022
RFC 9173Default Security Contexts for BPSec2022
RFC 9174DTN Convergence-Layer Adapter Using TCP2022
RFC 5050Bundle Protocol Specification (historic)2007
RFC 4838Delay-Tolerant Networking Architecture2007
CCSDS 734.2-B-1Bundle Protocol Specification (Blue Book)2015
DESNIC-04IPv4 Allocation Policy for Space-Based Endpoints2026
DESNIC-07Reverse DNS Delegation Under in-orbit.arpa2025
DESNIC-11Route-Object Schema for Intermittent-Connectivity Prefixes2025

Operator console LAST 60 EVENTS

Notices & advisories PUBLIC RECORD

Operational and security notices.

Active incidents, scheduled maintenance, and policy bulletins are posted here as the registry's authoritative public record. Subscribe via the announce-only mailing list notices@desnic.net or the RSS feed at desnic.net/notices/feed.xml.

DESNIC-INC-2026-0512-01 SEV-1 ACTIVE
Volumetric and L7 DDoS against whois / rdap / irr endpoints
Opened 2026-05-12 14:38Z · 218 Gbps composite · scrubbing engaged · Read full report ▸
DESNIC-MAINT-2026-0509-03 MAINT SCHEDULED
RPKI Certificate Authority key ceremony (HSM rotation)
Window 2026-05-22 06:00–10:00Z · ROA issuance paused · no impact to existing validations
DESNIC-ADV-2026-04 ADVISORY OPEN
Whois rotation for 198.18.0.0/15 spacecraft-experimentation reserve
Completes 2026-05-30 · operators must re-publish route objects by 2026-05-25
DESNIC-ADV-2026-03 ADVISORY CLOSED
DTN endpoint identifier collision in ipn:9999 namespace
Resolved 2026-04-18 · affected operators notified · post-mortem published
DESNIC-INC-2026-0218-01 SEV-1 CLOSED
IRR replica desynchronization (eu-west-2 mirror lag > 4h)
Closed 2026-02-19 · root cause: cascading replica failure on snapshot rollover · post-mortem published