[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Nov 18 17:05:38 UTC 2023
IPv4 R&E Routing Table Report 17:05 GMT Sat 18 Nov, 2023
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: 14286
Prefixes after maximum aggregation (per Origin AS): 8432
Deaggregation factor: 1.69
Unique aggregates announced (without unneeded subnets): 9238
Number of IPv4 prefixes with a valid ROA: 4278
Number of IPv4 prefixes with an invalid ROA: 2
Number of IPv4 prefixes with no ROA: 10006
Total ASes present in the Internet Routing Table: 2215
Prefixes per ASN: 6.45
Origin-only ASes present in the Internet Routing Table: 1926
Origin ASes announcing only one prefix: 882
Transit ASes present in the Internet Routing Table: 289
Transit-only ASes present in the Internet Routing Table: 50
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 16
Max AS path prepend of ASN ( 30116) 10
Prefixes from unregistered ASNs in the Routing Table: 9
Number of instances of unregistered ASNs: 9
Number of 32-bit ASNs allocated by the RIRs: 43070
Number of 32-bit ASNs visible in the Routing Table: 533
Prefixes from 32-bit ASNs in the Routing Table: 1574
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: 3
Number of addresses announced to Internet: 181354656
Equivalent to 10 /8s, 207 /16s and 64 /24s
Percentage of available address space announced: 4.9
Percentage of allocated address space announced: 4.9
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: 1479
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3314
Total APNIC prefixes after maximum aggregation: 1751
APNIC Deaggregation factor: 1.89
Prefixes being announced from the APNIC address blocks: 3312
Unique aggregates announced from the APNIC address blocks: 1896
APNIC Region origin ASes present in the Internet Routing Table: 418
APNIC Prefixes per ASN: 7.92
APNIC Region origin ASes announcing only one prefix: 195
APNIC Region transit ASes present in the Internet Routing Table: 44
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 167
Number of APNIC addresses announced to Internet: 43709536
Equivalent to 2 /8s, 154 /16s and 244 /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: 6457
Total ARIN prefixes after maximum aggregation: 3751
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 6480
Unique aggregates announced from the ARIN address blocks: 4189
ARIN Region origin ASes present in the Internet Routing Table: 1009
ARIN Prefixes per ASN: 6.42
ARIN Region origin ASes announcing only one prefix: 356
ARIN Region transit ASes present in the Internet Routing Table: 121
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: 155
Number of ARIN addresses announced to Internet: 78247136
Equivalent to 4 /8s, 169 /16s and 244 /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, 393216-401308
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: 2899
Total RIPE prefixes after maximum aggregation: 2422
RIPE Deaggregation factor: 1.20
Prefixes being announced from the RIPE address blocks: 2886
Unique aggregates announced from the RIPE address blocks: 2498
RIPE Region origin ASes present in the Internet Routing Table: 568
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 253
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: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 131
Number of RIPE addresses announced to Internet: 55009664
Equivalent to 3 /8s, 71 /16s and 97 /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: 999
Total LACNIC prefixes after maximum aggregation: 430
LACNIC Deaggregation factor: 2.32
Prefixes being announced from the LACNIC address blocks: 997
Unique aggregates announced from the LACNIC address blocks: 556
LACNIC Region origin ASes present in the Internet Routing Table: 124
LACNIC Prefixes per ASN: 8.04
LACNIC Region origin ASes announcing only one prefix: 54
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 54
Number of LACNIC addresses announced to Internet: 3411936
Equivalent to 0 /8s, 52 /16s and 15 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 608
Total AfriNIC prefixes after maximum aggregation: 71
AfriNIC Deaggregation factor: 8.56
Prefixes being announced from the AfriNIC address blocks: 608
Unique aggregates announced from the AfriNIC address blocks: 96
AfriNIC Region origin ASes present in the Internet Routing Table: 44
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 910336
Equivalent to 0 /8s, 13 /16s and 228 /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 598 2162 466 SINET-AS Research Organization of Infor
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
4538 182 4193 75 ERX-CERNET-BKB China Education and Rese
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
58647 177 18 2 KAGAWAU-AS Kagawa University, JP
55824 127 19 17 NKN-CORE-NW NKN Core Network, IN
2697 58 4 34 ERX-ERNET-AS Education and Research Net
1659 51 1450 34 ERX-TANET-ASN1 Taiwan Academic Network
45773 48 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
132524 47 9 12 TIFR-AS Tata Institute of Fundamental R
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
376 202 178 151 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
2152 145 507 93 CSUNET-NW, US
18558 141 18 4 NETBLK-RCOEK, US
81 126 521 30 NCREN, US
270 118 329 82 AS270, US
23024 112 7 19 OCDE, US
32440 111 35 18 LONI, US
2920 103 34 7 LACOE, US
21976 80 51 18 NJEDGE-NET, 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 1903 249 DFN Verein zur Foerderung eines Deutsch
786 185 1767 182 JANET Jisc Services Limited, GB
559 113 533 105 SWITCH Peering requests: peering at switch
1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 63 598 58 FR-RENATER Reseau National de telecommu
200521 56 4 20 SEAP-AGE, ES
1653 50 151 47 SUNET SUNET Swedish University Network,
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 250 176 43 Rede Nacional de Ensino e Pesquisa, BR
11340 105 24 49 Red Universitaria Nacional, CL
271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 43 99 33 Fundacao Carlos Chagas Filho de Amparo
61468 41 3 13 CEDIA, EC
1251 33 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
263683 33 10 21 Universidad de Costa Rica, CR
20191 27 2 23 Pontificia Universidad Catolica de Chil
28571 19 40 18 UNIVERSIDADE DE SAO PAULO, BR
27790 18 2 2 Universidad Nacional de Cordoba, AR
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 251 82 3 KENET-AS, KE
327687 166 28 3 RENU, UG
327700 42 16 1 MoRENet, MZ
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 11 7 7 UG-AS, GH
37654 11 1 6 RwEdNet-AS, RW
37182 6 8 1 TERNET, TZ
37215 6 8 1 MAREN, MW
31960 5 1 1 EMUNET, MZ
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 598 2162 466 SINET-AS Research Organization of Infor
7497 437 180 23 CSTNET-AS-AP Computer Network Informati
680 283 1903 249 DFN Verein zur Foerderung eines Deutsch
36914 251 82 3 KENET-AS, KE
1916 250 176 43 Rede Nacional de Ensino e Pesquisa, BR
376 202 178 151 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
786 185 1767 182 JANET Jisc Services Limited, GB
4538 182 4193 75 ERX-CERNET-BKB China Education and Rese
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
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 437 414 CSTNET-AS-AP Computer Network Information Cente
36914 251 248 KENET-AS, KE
1916 250 207 Rede Nacional de Ensino e Pesquisa, BR
5786 197 196 UPRENET, PR
58647 177 175 KAGAWAU-AS Kagawa University, JP
327687 166 163 RENU, UG
18558 141 137 NETBLK-RCOEK, US
55824 127 110 NKN-CORE-NW NKN Core Network, IN
4538 182 107 ERX-CERNET-BKB China Education and Research Net
81 126 96 NCREN, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US
11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.189.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.190.0/24 40498 ABQG, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW
134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res
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 /10:2 /11:1 /12:10
/13:19 /14:35 /15:109 /16:1734 /17:335 /18:347
/19:463 /20:653 /21:642 /22:1079 /23:1160 /24:7531
/25:45 /26:58 /27:62 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 240 251 KENET-AS, KE
32440 81 111 LONI, US
23024 52 112 OCDE, US
1916 40 250 Rede Nacional de Ensino e Pesquisa, BR
327700 36 42 MoRENet, MZ
200521 33 56 SEAP-AGE, ES
25977 28 42 HCCS, US
327687 26 166 RENU, UG
26898 24 32 LNOCA-ORG, US
36794 24 26 SCOCA, 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 14:89 23:3
24:3 31:3 35:4 38:4 40:1 41:116
42:12 44:6 45:31 46:5 49:9 58:12
59:9 60:5 61:2 62:6 63:3 64:27
65:1 66:11 67:34 68:1 69:8 70:2
71:1 72:7 74:17 76:41 77:8 78:3
79:10 80:8 81:24 82:2 83:6 84:6
85:12 86:1 87:1 89:10 91:36 93:4
94:2 95:2 96:5 101:5 102:32 103:221
104:72 108:8 109:1 111:16 114:1 116:6
118:18 119:18 121:28 122:8 123:8 124:40
125:1 128:68 129:31 130:84 131:57 132:60
133:152 134:78 136:195 137:129 138:9 139:4
140:30 141:3 142:39 143:15 144:23 145:2
146:119 147:22 148:7 149:11 150:13 151:12
152:124 153:7 154:6 155:48 156:65 157:12
158:29 159:114 160:30 161:13 162:16 163:76
164:12 165:9 167:10 168:51 169:8 170:15
172:3 173:7 175:17 177:4 179:12 180:14
181:1 182:1 184:2 185:39 186:3 187:1
188:12 189:3 190:18 191:2 192:1266 193:258
194:89 195:60 196:64 197:166 198:391 199:214
200:280 201:24 202:366 203:183 204:325 205:111
206:151 207:132 208:56 209:107 210:92 211:1
212:42 213:2 216:54 217:9 219:5 220:5
222:2 223:14
End of report
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