HomeASN LookupAS21700

AS21700 NEPTUNE-NETWORKS - Neptune Networks, LLC

🇺🇸
ARINassignedASPA Published
Announced Prefixes (BGP)
10total
8 IPv42 IPv6
IPv4 Addresses
Allocated (RIR)2,304
Announced (BGP)3,072
IPv6 Addresses
Allocated (RIR)7.9×10²⁸
Announced (BGP)8.1×10²⁸
Prefix Limit (IPv4)
20
Prefix Limit (IPv6)
10
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2020-12-04

Routing hygiene

Score 14/100 · Low risk
RPKI ROA coverage
90%
1 prefix RPKI invalid
IRR route objects
90%
1 prefix registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
3
diversity 54/100
  • 10% of announced prefixes (1 of 10) have no valid ROA, 1 of them RPKI invalid

Based on 10 announced prefixes, updated daily (2026-10-23). How the score works · RPKI explained

Announced Prefixes

(BGP)10
|
Prefix
RPKI
IRR
Last Seen
23.157.160.0/24
 Valid
ARIN
2026-10-26
157.254.142.0/24
 Valid
ARINOther IRR
2026-10-26
159.148.114.0/24
 Invalid-2026-10-26
172.82.22.0/23
 Valid
ARIN
2026-10-26
192.109.165.0/24
 Valid
ARINOther IRR
2026-10-26
209.151.100.0/22
 Valid
ARIN
2026-10-26
216.74.121.0/24
 Valid
ARINOther IRR
2026-10-26
216.126.57.0/24
 Valid
ARINOther IRR
2026-10-26
2602:fe2e::/37
 Valid
ARIN
2026-10-26
2606:f1c0::/32
 Valid
ARIN
2026-10-26

Allocated Prefixes

(RIR)6
Prefix
Country
RIR
Status
23.157.160.0/24🇺🇸 USARINallocated
159.148.114.0/24🇺🇸 USRIPEassigned
172.82.22.0/23🇺🇸 USARINallocated
192.109.165.0/24🇺🇸 USARINallocated
209.151.100.0/22🇺🇸 USARINallocated
2606:f1c0::/32🇺🇸 USARINallocated

All 10 announced prefixes of AS21700 →

Upstream Providers(3)

ASNName
AS174🇺🇸COGENT-174 - Cogent Communications, LLC
AS3257🇺🇸GTT-BACKBONE GTT Communications Inc.
AS6939🇺🇸HURRICANE - Hurricane Electric LLC

Downstream Customers(17)

ASNName
AS959🇺🇸OHANACAST - OHANACRAFT, LLC
AS10779🇺🇸STEPBROBD - StepBroBD, Inc.
AS13849🇺🇸BLOCKINETIC - Blockinetic LLC
AS26533🇺🇸STIBARC-AS-01 - STiBaRC
AS32042🇨🇦EVERGATE-NETWORKS - Evergate Solutions
AS153039🇺🇸PRONET-AS-AP - Protected Networks
AS200819🇧🇷Expanda EXPANDA TECNOLOGIA DA INFORMACAO LTDA
AS210173🇩🇪HERRTXBIAS-AS Tobias Peltzer
AS212123🇧🇪REDPANDA-AS Jori Vanneste
AS215207🇺🇸AETHERNET Henrik Van Tassell
AS216096🇦🇩SECUREPEAK Alex Terrats Ciberseguretat SLU
AS218617🇳🇱SNEEKES Raymond Sneekes
AS219370🇬🇧Johnson Benjamin Johnson
AS397143🇺🇸NEPTUNE-NETWORKS-RESEARCH - Neptune Networks, LLC
AS402164🇺🇸ROFAEL-01 - Rofael Aleezada, Sole Proprietorship
AS402407🇺🇸AS-NEPTUNE-CUST - Neptune
AS402663🇺🇸PHOENIXNET-LABS - PhoenixNet-Labs

BGP Neighbours

(seen in AS paths)

Upstreams (3)

Networks AS21700 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS174Cogent Communications7
  • AS3257GTT BACKBONE GTT Communications2
  • AS6939Hurricane Electric1

Downstreams (52)

Networks whose own prefixes AS21700 passes on: usually its customers.

Other adjacent networks (2)

Adjacent to AS21700 in the transit part of AS paths: peers, providers or customers.

ASPA
Published3 upstreams, 17 downstreams
Authorized Upstream Providers
AS174AS3257AS6939
Expires 2026-10-28
Listed as Upstream Provider by
17 ASNs
View full ASPA details →
External Links
ARIN WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/21700

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/21700" | jq