Autonomous system
AS21700 NEPTUNE-NETWORKS
Unclassified ARIN
Summary
Neptune Networks
transit nsp business
NEPTUNE-NETWORKS is the AS handle for Neptune Networks, LLC.
What it's used for
- The address space carries business and enterprise traffic, evidenced by the netnames
NEPTUNE-NETWORKS-V4-01throughV4-04and a single reverse DNS record pointing topfr1.playfulrewardsapp.com. - With 2,816 IPv4 addresses announced across 7 prefixes and 196 observed neighbours, the high neighbour-to-address ratio indicates a transit or network service provider role rather than an access network.
Notable
- Registrants for the largest prefixes (
209.151.100.0/22,172.82.22.0/23,23.157.160.0/24) align with the announcer, Neptune Networks, LLC, while smaller prefixes are registered toPrivate Customer. - The address inventory is mixed, comprising three large blocks under the Neptune Networks netname and four smaller /24 blocks registered to private customers, suggesting a combination of owned infrastructure and leased or customer-specific space.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| New York International Internet Exchange | New York, United States | 2001:504:1::a502:1700:1 |
Transit providers
7 upstream, 52 downstream and 83 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 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 2.82K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 9 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS21700- Registry name
- NEPTUNE-NETWORKS
- Registrant
- Neptune Networks, LLC
- Abuse contact
- abuse@neptunenetworks.com
- Registered
- 2020-12-04
- Last changed
- 2020-12-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 9 valid, 0 with no ROA
- ROAs
- 10 authorising AS21700
- ASPA
- 3 declared providers
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 18 naming AS21700
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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