Home ASN LookupAS1856

AS1856 DISN-PILOTNET2 - RTX BBN Technologies, Inc.

🇺🇸

ARINassigned

Announced Prefixes (BGP)

17total

17 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)65,536

Announced (BGP)89,600

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

100

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

1992-05-27

Announced Prefixes

(BGP)17

Prefix	RPKI	IRR	Last Seen
128.33.0.0/16	No ROA	-	2026-10-11
128.33.194.0/24	No ROA	-	2026-10-11
192.1.0.0/22	No ROA	-	2026-10-11
192.1.4.0/23	No ROA	-	2026-10-11
192.1.7.0/24	No ROA	-	2026-10-11
192.1.8.0/21	No ROA	-	2026-10-11
192.1.20.0/22	No ROA	-	2026-10-11
192.1.24.0/21	No ROA	-	2026-10-11
192.1.32.0/20	No ROA	-	2026-10-11
192.1.64.0/19	No ROA	-	2026-10-11

1-10 of 17

1 / 2

Allocated Prefixes

(RIR)1

Prefix	Country	RIR	Status
128.33.0.0/16	🇺🇸 US	ARIN	allocated

All 17 announced prefixes of AS1856 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS1856 hands its own prefixes to: transit providers, or peers at an exchange.

AS7018AT&T Enterprises17

Transfer History

Registry transfers of AS1856 between organisations.

AS1856M&A · 2022-09-20
Bolt Beranek and Newman Inc.
🇺🇸 US ARIN
→
Raytheon BBN Technologies Corp.
🇺🇸 US ARIN

Date	Resource	From	To	Type
2022-09-20	AS1856	Bolt Beranek and Newman Inc. 🇺🇸 US ARIN	Raytheon BBN Technologies Corp. 🇺🇸 US ARIN	M&A

ASPA

No ASPA

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS1856 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/1856

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

curl -s "https://api.ipctl.io/v1/asn/1856" | jq