[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Mon Jul 15 17:05:41 UTC 2024
IPv4 R&E Routing Table Report 17:05 GMT Mon 15 Jul, 2024
IPv4 BGP Table (R&E) as seen at ASREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/
Analysis Summary
----------------
BGP routing table entries examined: 12948
Prefixes after maximum aggregation (per Origin AS): 7790
Deaggregation factor: 1.66
Unique aggregates announced (without unneeded subnets): 8642
Number of IPv4 prefixes with a valid ROA: 4418
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 8530
Total ASes present in the Internet Routing Table: 1992
Prefixes per ASN: 6.50
Origin-only ASes present in the Internet Routing Table: 1719
Origin ASes announcing only one prefix: 810
Transit ASes present in the Internet Routing Table: 273
Transit-only ASes present in the Internet Routing Table: 48
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 14
Max AS path prepend of ASN ( 30116) 10
Prefixes from unregistered ASNs in the Routing Table: 0
Number of instances of unregistered ASNs: 0
Number of 32-bit ASNs allocated by the RIRs: 44976
Number of 32-bit ASNs visible in the Routing Table: 478
Prefixes from 32-bit ASNs in the Routing Table: 1285
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 2
Number of addresses announced to Internet: 158400704
Equivalent to 9 /8s, 113 /16s and 0 /24s
Percentage of available address space announced: 4.3
Percentage of allocated address space announced: 4.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 1363
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3402
Total APNIC prefixes after maximum aggregation: 1728
APNIC Deaggregation factor: 1.97
Prefixes being announced from the APNIC address blocks: 3402
Unique aggregates announced from the APNIC address blocks: 1909
APNIC Region origin ASes present in the Internet Routing Table: 430
APNIC Prefixes per ASN: 7.91
APNIC Region origin ASes announcing only one prefix: 195
APNIC Region transit ASes present in the Internet Routing Table: 43
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 170
Number of APNIC addresses announced to Internet: 37860672
Equivalent to 2 /8s, 65 /16s and 181 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 5454
Total ARIN prefixes after maximum aggregation: 3182
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 5462
Unique aggregates announced from the ARIN address blocks: 3597
ARIN Region origin ASes present in the Internet Routing Table: 827
ARIN Prefixes per ASN: 6.60
ARIN Region origin ASes announcing only one prefix: 300
ARIN Region transit ASes present in the Internet Routing Table: 111
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 130
Number of ARIN addresses announced to Internet: 62342400
Equivalent to 3 /8s, 183 /16s and 69 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 2935
Total RIPE prefixes after maximum aggregation: 2458
RIPE Deaggregation factor: 1.19
Prefixes being announced from the RIPE address blocks: 2927
Unique aggregates announced from the RIPE address blocks: 2544
RIPE Region origin ASes present in the Internet Routing Table: 571
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 264
RIPE Region transit ASes present in the Internet Routing Table: 84
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 132
Number of RIPE addresses announced to Internet: 54995072
Equivalent to 3 /8s, 71 /16s and 40 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 741
Total LACNIC prefixes after maximum aggregation: 376
LACNIC Deaggregation factor: 1.97
Prefixes being announced from the LACNIC address blocks: 740
Unique aggregates announced from the LACNIC address blocks: 527
LACNIC Region origin ASes present in the Internet Routing Table: 91
LACNIC Prefixes per ASN: 8.13
LACNIC Region origin ASes announcing only one prefix: 36
LACNIC Region transit ASes present in the Internet Routing Table: 20
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 8
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 35
Number of LACNIC addresses announced to Internet: 2528768
Equivalent to 0 /8s, 38 /16s and 150 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 416
Total AfriNIC prefixes after maximum aggregation: 46
AfriNIC Deaggregation factor: 9.04
Prefixes being announced from the AfriNIC address blocks: 415
Unique aggregates announced from the AfriNIC address blocks: 63
AfriNIC Region origin ASes present in the Internet Routing Table: 25
AfriNIC Prefixes per ASN: 16.60
AfriNIC Region origin ASes announcing only one prefix: 15
AfriNIC Region transit ASes present in the Internet Routing Table: 5
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 11
Number of AfriNIC addresses announced to Internet: 671488
Equivalent to 0 /8s, 10 /16s and 63 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 595 2162 464 SINET-AS Research Organization of Informa
7497 446 180 24 CSTNET-AS-AP Computer Network Information
4538 188 4193 75 ERX-CERNET-BKB China Education and Resear
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
7575 172 329 115 AARNET-AS-AP Australian Academic and Rese
55824 131 19 19 NKN-CORE-NW NKN Core Network, IN
2697 58 4 34 ERX-ERNET-AS Education and Research Netwo
38280 50 3 2 MONASHUNI-MY-AS-AP Monash University Sunw
45773 48 3 5 HECPERN-AS-PK PERN AS Content Servie Prov
132524 44 9 11 TIFR-AS Tata Institute of Fundamental Res
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
5786 199 16 1 UPRENET, PR
376 198 162 147 RISQ-AS, CA
2920 176 34 7 LACOE, US
2152 150 507 95 CENIC-2152, US
18558 140 18 4 NETBLK-RCOEK, US
270 129 332 91 AS270, US
23024 96 7 21 OCDE, US
21976 87 50 17 NJEDGE-NET, US
237 85 543 51 MERIT-AS-14, US
1736 79 16 1 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1899 250 DFN Verein zur Foerderung eines Deutschen
786 184 1767 181 JANET Jisc Services Limited, GB
559 113 533 103 SWITCH Peering requests: peering at switch.c
1103 96 1503 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 91 26 71 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
2200 63 598 58 FR-RENATER Reseau National de telecommuni
1653 54 151 51 SUNET SUNET Swedish University Network, E
200521 54 4 24 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 131 100 46 Rede Nacional de Ensino e Pesquisa, BR
11340 109 25 52 Red Universitaria Nacional, CL
271640 63 4 25 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 42 83 31 Fundacao Carlos Chagas Filho de Amparo a
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
61468 30 2 10 CEDIA, EC
20191 27 2 23 Pontificia Universidad Catolica de Chile,
3597 21 16 2 Fundacion InnovaT, AR
27790 18 2 2 Universidad Nacional de Cordoba, AR
28571 18 40 18 UNIVERSIDADE DE SAO PAULO, BR
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 282 82 3 KENET-AS, KE
327700 48 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37661 13 8 5 NRaE1-AS, NG
37182 11 8 1 TERNET, TZ
37215 8 8 1 MAREN, MW
37654 6 1 6 RwEdNet-AS, RW
328903 4 0 1 RITER, CI
31960 3 0 2 EMUNET, MZ
37532 2 20 2 ZAMREN, ZM
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 595 2162 464 SINET-AS Research Organization of Informa
7497 446 180 24 CSTNET-AS-AP Computer Network Information
680 283 1899 250 DFN Verein zur Foerderung eines Deutschen
36914 282 82 3 KENET-AS, KE
5786 199 16 1 UPRENET, PR
376 198 162 147 RISQ-AS, CA
4538 188 4193 75 ERX-CERNET-BKB China Education and Resear
786 184 1767 181 JANET Jisc Services Limited, GB
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
2920 176 34 7 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 446 422 CSTNET-AS-AP Computer Network Information Cente
36914 282 279 KENET-AS, KE
5786 199 198 UPRENET, PR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 176 169 LACOE, US
18558 140 136 NETBLK-RCOEK, US
4538 188 113 ERX-CERNET-BKB China Education and Research Net
55824 131 112 NKN-CORE-NW NKN Core Network, IN
1916 131 85 Rede Nacional de Ensino e Pesquisa, BR
1736 79 78 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:0 /12:9
/13:17 /14:33 /15:97 /16:1547 /17:275 /18:287
/19:384 /20:578 /21:583 /22:970 /23:1070 /24:6951
/25:34 /26:45 /27:66 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 272 282 KENET-AS, KE
32440 53 68 LONI, US
327700 42 48 MoRENet, MZ
23024 38 96 OCDE, US
200521 31 54 SEAP-AGE, ES
25977 27 39 HCCS, US
26898 24 32 LNOCA-ORG, US
31638 21 21 ASN-LEPIDA, IT
3233 19 29 ICI-ROTLD Romanian National R&D Network, RO
22742 19 67 CT-EDU-NET, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 8:2 12:1 14:91 24:3
31:1 35:3 38:2 41:172 42:13 44:4
45:36 46:5 49:10 50:1 58:17 59:18
60:6 61:2 62:5 63:3 64:17 66:13
67:33 68:2 69:10 70:2 71:1 72:7
74:16 76:12 77:3 78:3 79:10 80:8
81:24 82:2 83:6 84:6 85:24 87:1
89:11 91:39 93:5 94:2 95:2 96:5
101:4 102:5 103:233 104:65 108:3 109:5
111:16 114:1 116:8 118:34 119:23 121:28
122:8 123:8 124:42 128:60 129:24 130:81
131:49 132:21 133:158 134:75 136:197 137:29
138:57 139:4 140:9 141:3 142:21 143:13
144:23 145:2 146:121 147:20 148:8 149:11
150:12 151:3 152:109 153:7 154:13 155:26
156:135 157:12 158:30 159:116 160:29 161:13
162:9 163:54 164:14 165:8 167:11 168:30
169:6 170:13 172:2 173:6 175:18 176:8
177:3 179:11 180:16 182:1 184:5 185:41
186:1 187:1 188:11 189:3 190:15 191:1
192:1130 193:225 194:87 195:59 196:10 197:153
198:326 199:184 200:194 201:21 202:374 203:201
204:306 205:98 206:122 207:175 208:49 209:84
210:93 211:2 212:39 213:3 216:48 217:9
219:5 220:1 222:2 223:14
End of report
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