Internet Assigned Numbers Authority
Autonomous System (AS) Numbers
Last Updated
2025-01-17
Note
Autonomous System (AS) Numbers are used by various routing protocols. IANA allocates
AS Numbers to Regional Internet Registries (RIRs). The RIRs further allocate or assign AS
Numbers to network operators in line with RIR policies. The [five RIRs] are:
- [AFRINIC]
- [APNIC]
- [ARIN]
- [LACNIC]
- [RIPE_NCC]
AS Numbers can be obtained from the registry in your region.
Available Formats
[IMG]
XML [IMG]
HTML [IMG]
Plain text
Registries included below
??16-bit Autonomous System Numbers
??32-bit Autonomous System Numbers
16-bit Autonomous System Numbers
Registration Procedure(s)
RIR request to the IANA or IETF Review. Allocated following the Global Policy published at
[http://www.icann.org/en/resources/policy/global-addressing].
Reference
[RFC1930][RFC5398][RFC6996][RFC7249]
Available Formats
[IMG]
CSV
Number Description WHOIS RDAP Reference Registration Date
0 Reserved [RFC7607]
1-1876 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
1877-1901 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
1902-2042 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
2043 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
2044-2046 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
2047 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
2048-2106 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
2107-2136 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
2137-2584 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
2585-2614 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
2615-2772 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
2773-2822 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
2823-2829 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
2830-2879 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
2880-3153 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
3154-3353 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
3354-4607 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
4608-4865 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/
4866-5376 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
5377-5631 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
5632-6655 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
6656-6911 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
6912-7466 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
7467-7722 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/
7723-8191 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
8192-9215 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
9216-10239 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/
10240-12287 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
12288-13311 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
13312-15359 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
15360-16383 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
16384-17407 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
17408-18431 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/
18432-20479 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
20480-21503 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
21504-23455 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
23456 AS_TRANS [RFC6793]
23457-23551 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry
http://rdap.arin.net/registry
23552-24575 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/
24576-25599 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/
25600-26623 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2002-03
http://rdap.arin.net/registry
26624-27647 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2002-09
http://rdap.arin.net/registry
27648-28671 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2002-11
28672-29695 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2002-12
29696-30719 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2003-03
http://rdap.arin.net/registry
30720-31743 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2003-09
31744-32767 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2003-11
http://rdap.arin.net/registry
32768-33791 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2004-05
http://rdap.arin.net/registry
33792-34815 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2004-06
34816-35839 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2005-02
35840-36863 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2005-02
http://rdap.arin.net/registry
36864-37887 Assigned by AFRINIC whois.afrinic.net https://rdap.afrinic.net/rdap/ 2005-04
http://rdap.afrinic.net/rdap/
37888-38911 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2005-06
38912-39935 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2005-09
39936-40959 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2006-03-29
http://rdap.arin.net/registry
40960-41983 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2006-04-13
41984-43007 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2006-11-17
43008-44031 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2007-04-23
44032-45055 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2007-09-14
45056-46079 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2007-10-11
46080-47103 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2008-03-27
http://rdap.arin.net/registry
47104-48127 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2008-04-07
48128-49151 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2008-09-09
49152-50175 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2009-03-06
50176-51199 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2009-03-06
51200-52223 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2009-03-06
52224-53247 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2009-03-11
53248-54271 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2009-04-21
http://rdap.arin.net/registry
54272-55295 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2009-04-21
http://rdap.arin.net/registry
55296-56319 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2009-09-02
56320-57343 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2011-01-04
57344-58367 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2011-01-04
58368-59391 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2011-08-09
59392-60415 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2012-03-21
60416-61439 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2012-03-21
61440-61951 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2013-06-11
61952-62463 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2013-09-09
62464-63487 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2013-05-30
http://rdap.arin.net/registry
63488-63999 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2013-09-11
64000-64098 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2014-09-02
64099-64197 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2014-09-05
64198-64296 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2015-04-29
http://rdap.arin.net/registry
64297-64395 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2016-05-25
64396-64495 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2016-07-29
64496-64511 Reserved for use in documentation and sample code [RFC5398] 2008-12-03
64512-65534 Reserved for Private Use [RFC6996]
65535 Reserved [RFC7300]
32-bit Autonomous System Numbers
Registration Procedure(s)
RIR request to the IANA or IETF Review. Allocated following the Global Policy published at
[http://www.icann.org/en/resources/policy/global-addressing].
Reference
[RFC1930][RFC5398][RFC6793][RFC6996][RFC7249]
Available Formats
[IMG]
CSV
Number Description WHOIS RDAP Reference Registration Date
0-65535 See Sub-registry 16-bit AS numbers [RFC1930]
65536-65551 Reserved for use in documentation and sample [RFC5398] 2008-12-03
code
65552-131071 Reserved
131072-132095 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2006-11-29
132096-133119 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2011-08-09
133120-133631 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2013-09-11
133632-134556 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2014-09-02
134557-135580 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2014-09-02
135581-136505 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2016-05-25
136506-137529 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2016-05-25
137530-138553 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2017-12-07
138554-139577 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2017-12-07
139578-140601 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2019-06-12
140602-141625 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2019-06-12
141626-142649 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2020-10-20
142650-143673 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2020-10-20
143674-144697 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-05-05
144698-145721 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-05-05
145722-146745 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-05-05
146746-147769 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-05-05
147770-148793 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-10-11
148794-149817 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-10-11
149818-150841 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-10-11
150842-151865 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2021-10-11
151866-152889 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2023-05-10
152890-153913 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2023-05-10
153914-154937 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2025-01-17
154938-155961 Assigned by APNIC whois.apnic.net https://rdap.apnic.net/ 2025-01-17
155962-196607 Unallocated
196608-197631 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2006-11-29
197632-198655 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2011-01-04
198656-199679 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2012-03-21
199680-200191 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2013-09-09
200192-201215 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2014-02-28
201216-202239 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2014-02-28
202240-203263 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2015-06-11
203264-204287 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2015-06-11
204288-205211 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2016-07-29
205212-206235 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2016-07-29
206236-207259 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2016-07-29
207260-208283 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2018-08-20
208284-209307 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2018-08-20
209308-210331 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2018-08-20
210332-211355 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2020-04-01
211356-212379 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2020-04-01
212380-213403 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2020-04-01
213404-214427 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2023-08-10
214428-215451 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2023-08-10
215452-216475 Assigned by RIPE NCC whois.ripe.net https://rdap.db.ripe.net/ 2023-08-10
216476-262143 Unallocated
262144-263167 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2006-11-29
263168-263679 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2013-06-11
263680-264604 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2014-09-05
264605-265628 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2014-09-05
265629-266652 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2016-09-08
266653-267676 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2017-07-21
267677-268700 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2017-07-21
268701-269724 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2018-12-07
269725-270748 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2018-12-07
270749-271772 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2020-05-18
271773-272796 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2020-05-18
272797-273820 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2021-12-07
273821-274844 Assigned by LACNIC whois.lacnic.net https://rdap.lacnic.net/rdap/ 2024-03-22
274845-327679 Unallocated
327680-328703 Assigned by AFRINIC whois.afrinic.net https://rdap.afrinic.net/rdap/ 2006-11-29
http://rdap.afrinic.net/rdap/
328704-329727 Assigned by AFRINIC whois.afrinic.net https://rdap.afrinic.net/rdap/ 2020-03-05
http://rdap.afrinic.net/rdap/
329728-393215 Unallocated
393216-394239 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2006-11-30
http://rdap.arin.net/registry
394240-395164 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2015-04-29
http://rdap.arin.net/registry
395165-396188 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2016-05-03
http://rdap.arin.net/registry
396189-397212 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2016-05-03
http://rdap.arin.net/registry
397213-398236 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2018-08-09
http://rdap.arin.net/registry
398237-399260 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2018-08-09
http://rdap.arin.net/registry
399261-400284 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2020-11-02
http://rdap.arin.net/registry
400285-401308 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2020-11-02
http://rdap.arin.net/registry
401309-402332 Assigned by ARIN whois.arin.net https://rdap.arin.net/registry 2024-04-10
http://rdap.arin.net/registry
402333-4199999999 Unallocated
4200000000-4294967294 Reserved for Private Use [RFC6996]
4294967295 Reserved [RFC7300]
Contact Information
ID Name Contact URI Last Updated
[AFRINIC] AFRINIC mailto:hostmaster&afrinic.net 2013-09-09
[APNIC] APNIC mailto:helpdesk&apnic.net 2013-09-09
[ARIN] ARIN mailto:hostmaster&arin.net 2013-09-09
[LACNIC] LACNIC mailto:hostmaster&lacnic.net 2013-09-09
[RIPE_NCC] RIPE NCC mailto:ncc&ripe.net 2013-09-09
Licensing Terms
Presently we were in a very dark road, and at a point where it dropped suddenly between steep sides we halted in black shadow. A gleam of pale sand, a whisper of deep flowing waters, and a farther glimmer of more sands beyond them challenged our advance. We had come to a "grapevine ferry." The scow was on the other side, the water too shoal for the horses to swim, and the bottom, most likely, quicksand. Out of the blackness of the opposite shore came a soft, high-pitched, quavering, long-drawn, smothered moan of woe, the call of that snivelling little sinner the screech-owl. Ferry murmured to me to answer it and I sent the same faint horror-stricken tremolo back. Again it came to us, from not farther than one might toss his cap, and I followed Ferry down to the water's edge. The grapevine guy swayed at our side, we heard the scow slide from the sands, and in a few moments, moved by two videttes, it touched our shore. Soon we were across, the two videttes riding with us, and beyond a sharp rise, in an old opening made by the swoop of a hurricane, we entered the silent unlighted bivouac of Ferry's scouts. Ferry got down and sat on the earth talking with Quinn, while the sergeants quietly roused the sleepers to horse. Plotinus is driven by this perplexity to reconsider the whole theory of Matter.477 He takes Aristotle¡¯s doctrine as the groundwork of his investigation. According to this, all existence is divided into Matter and Form. What we know of things¡ªin other words, the sum of their differential characteristics¡ªis their Form. Take away this, and the unknowable residuum is their Matter. Again, Matter is the vague indeterminate something out of which particular Forms are developed. The two are related as Possibility to Actuality, as the more generic to the more specific substance through every grade of classification and composition. Thus there are two Matters, the one sensible and the other intelligible. The former constitutes the common substratum of bodies, the other the common element of ideas.478 The general distinction between Matter and Form was originally suggested to Aristotle by Plato¡¯s remarks on the same subject; but he differs325 from his master in two important particulars. Plato, in his Timaeus, seems to identify Matter with space.479 So far, it is a much more positive conception than the ?λη of the Metaphysics. On the other hand, he constantly opposes it to reality as something non-existent; and he at least implies that it is opposed to absolute good as a principle of absolute evil.480 Thus while the Aristotelian world is formed by the development of Power into Actuality, the Platonic world is composed by the union of Being and not-Being, of the Same and the Different, of the One and the Many, of the Limit and the Unlimited, of Good and Evil, in varying proportions with each other. The Lawton woman had heard of an officer's family at Grant, which was in need of a cook, and had gone there. [See larger version] On the 8th of July an extraordinary Privy Council was summoned. All the members, of whatever party, were desired to attend, and many were the speculations as to the object of their meeting. The general notion was that it involved the continuing or the ending of the war. It turned out to be for the announcement of the king's intended marriage. The lady selected was Charlotte, the second sister of the Duke of Mecklenburg-Strelitz. Apart from the narrowness of her education, the young princess had a considerable amount of amiability, good sense, and domestic taste. These she shared with her intended husband, and whilst they made the royal couple always retiring, at the same time they caused them to give, during their lives, a moral air to their court. On the 8th of September Charlotte arrived at St. James's, and that afternoon the marriage took place, the ceremony being performed by the Archbishop of Canterbury. On the 22nd the coronation took place with the greatest splendour. Mother and girls were inconsolable, for each had something that they were sure "Si would like," and would "do him good," but they knew Josiah Klegg, Sr., well enough to understand what was the condition when he had once made up his mind. CHAPTER V. THE YOUNG RECRUITS Si proceeded to deftly construct a litter out of the two guns, with some sticks that he cut with a knife, and bound with pawpaw strips. His voice had sunk very low, almost to sweetness. A soft flurry of pink went over her face, and her eyelids drooped. Then suddenly she braced herself, pulled herself taut, grew combative again, though her voice shook. HoME²Ô¾®Ïè̫ʲôÐÇ×ù
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