[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Sat Jul 1 17:05:38 UTC 2023
IPv4 R&E Routing Table Report 17:05 GMT Sat 01 Jul, 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: 13361
Prefixes after maximum aggregation (per Origin AS): 7907
Deaggregation factor: 1.69
Unique aggregates announced (without unneeded subnets): 8686
Number of IPv4 prefixes with a valid ROA: 3990
Number of IPv4 prefixes with an invalid ROA: 2
Number of IPv4 prefixes with no ROA: 9369
Total ASes present in the Internet Routing Table: 2065
Prefixes per ASN: 6.47
Origin-only ASes present in the Internet Routing Table: 1790
Origin ASes announcing only one prefix: 812
Transit ASes present in the Internet Routing Table: 275
Transit-only ASes present in the Internet Routing Table: 45
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: 20
Max AS path prepend of ASN ( 30116) 10
Prefixes from unregistered ASNs in the Routing Table: 6
Number of instances of unregistered ASNs: 6
Number of 32-bit ASNs allocated by the RIRs: 42200
Number of 32-bit ASNs visible in the Routing Table: 475
Prefixes from 32-bit ASNs in the Routing Table: 1415
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: 4
Number of addresses announced to Internet: 169274944
Equivalent to 10 /8s, 22 /16s and 238 /24s
Percentage of available address space announced: 4.6
Percentage of allocated address space announced: 4.6
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: 1477
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3254
Total APNIC prefixes after maximum aggregation: 1694
APNIC Deaggregation factor: 1.92
Prefixes being announced from the APNIC address blocks: 3254
Unique aggregates announced from the APNIC address blocks: 1849
APNIC Region origin ASes present in the Internet Routing Table: 402
APNIC Prefixes per ASN: 8.09
APNIC Region origin ASes announcing only one prefix: 178
APNIC Region transit ASes present in the Internet Routing Table: 39
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 161
Number of APNIC addresses announced to Internet: 37999712
Equivalent to 2 /8s, 67 /16s and 212 /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: 5655
Total ARIN prefixes after maximum aggregation: 3332
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 5672
Unique aggregates announced from the ARIN address blocks: 3709
ARIN Region origin ASes present in the Internet Routing Table: 913
ARIN Prefixes per ASN: 6.21
ARIN Region origin ASes announcing only one prefix: 319
ARIN Region transit ASes present in the Internet Routing Table: 119
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 132
Number of ARIN addresses announced to Internet: 72365920
Equivalent to 4 /8s, 80 /16s and 55 /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: 2896
Total RIPE prefixes after maximum aggregation: 2431
RIPE Deaggregation factor: 1.19
Prefixes being announced from the RIPE address blocks: 2885
Unique aggregates announced from the RIPE address blocks: 2512
RIPE Region origin ASes present in the Internet Routing Table: 559
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 253
RIPE Region transit ASes present in the Internet Routing Table: 83
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: 125
Number of RIPE addresses announced to Internet: 54995328
Equivalent to 3 /8s, 71 /16s and 41 /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
196608-213403
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: 944
Total LACNIC prefixes after maximum aggregation: 395
LACNIC Deaggregation factor: 2.39
Prefixes being announced from the LACNIC address blocks: 940
Unique aggregates announced from the LACNIC address blocks: 544
LACNIC Region origin ASes present in the Internet Routing Table: 113
LACNIC Prefixes per ASN: 8.32
LACNIC Region origin ASes announcing only one prefix: 49
LACNIC Region transit ASes present in the Internet Routing Table: 21
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 9
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 44
Number of LACNIC addresses announced to Internet: 3063808
Equivalent to 0 /8s, 46 /16s and 192 /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: 606
Total AfriNIC prefixes after maximum aggregation: 49
AfriNIC Deaggregation factor: 12.37
Prefixes being announced from the AfriNIC address blocks: 606
Unique aggregates announced from the AfriNIC address blocks: 68
AfriNIC Region origin ASes present in the Internet Routing Table: 29
AfriNIC Prefixes per ASN: 20.90
AfriNIC Region origin ASes announcing only one prefix: 13
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 13
Number of AfriNIC addresses announced to Internet: 845312
Equivalent to 0 /8s, 12 /16s and 230 /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 601 2146 465 SINET-AS Research Organization of Infor
7497 430 177 19 CSTNET-AS-AP Computer Network Informati
4538 185 4192 73 ERX-CERNET-BKB China Education and Rese
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 329 121 AARNET-AS-AP Australian Academic and Re
55824 119 18 13 NKN-CORE-NW NKN Core Network, IN
2697 57 4 33 ERX-ERNET-AS Education and Research Net
45773 46 3 8 HECPERN-AS-PK PERN AS Content Servie Pr
132524 45 9 11 TIFR-AS Tata Institute of Fundamental R
9270 33 5 6 APAN-KR-AS National Infomation Society
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 198 16 1 UPRENET, PR
2152 142 507 92 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 117 329 82 AS270, US
23024 112 7 19 OCDE, US
2920 109 34 7 LACOE, US
32440 108 35 18 LONI, US
376 100 168 71 RISQ-AS, CA
21976 85 51 18 NJEDGE-NET, 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
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
786 186 1767 183 JANET Jisc Services Limited, GB
559 112 533 104 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 64 599 59 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 247 154 41 Rede Nacional de Ensino e Pesquisa, BR
11340 103 24 47 Red Universitaria Nacional, CL
1251 60 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 56 86 36 Fundacao Carlos Chagas Filho de Amparo
61468 40 3 13 CEDIA, EC
271640 33 2 6 UNIVERSIDADE FEDERAL DE VICOSA, BR
263683 32 10 20 Universidad de Costa Rica, CR
20191 28 16 1 Pontificia Universidad Catolica de Chil
3597 23 2 17 Fundacion InnovaT, AR
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 254 82 3 KENET-AS, KE
327687 166 28 3 RENU, UG
327700 40 16 1 MoRENet, MZ
37215 37 8 1 MAREN, MW
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37654 10 1 6 RwEdNet-AS, RW
31960 5 1 1 EMUNET, MZ
328358 5 1 1 Makerere-AS, UG
30983 4 4 1 MARWAN-AS, MA
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 601 2146 465 SINET-AS Research Organization of Infor
7497 430 177 19 CSTNET-AS-AP Computer Network Informati
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
36914 254 82 3 KENET-AS, KE
1916 247 154 41 Rede Nacional de Ensino e Pesquisa, BR
5786 198 16 1 UPRENET, PR
786 186 1767 183 JANET Jisc Services Limited, GB
4538 185 4192 73 ERX-CERNET-BKB China Education and Rese
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 329 121 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 430 411 CSTNET-AS-AP Computer Network Information Cente
36914 254 251 KENET-AS, KE
1916 247 206 Rede Nacional de Ensino e Pesquisa, BR
5786 198 197 UPRENET, PR
58647 178 176 KAGAWAU-AS Kagawa University, JP
327687 166 163 RENU, UG
18558 134 130 NETBLK-RCOEK, US
4538 185 112 ERX-CERNET-BKB China Education and Research Net
55824 119 106 NKN-CORE-NW NKN Core Network, IN
2920 109 102 LACOE, 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
29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US
138933 UNALLOCATED 103.137.86.0/24 24490 TEIN2-SG-AP Trans-Eurasia In
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US
29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, 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
64.202.80.0/20 Origin: 29867 UNASSIGNED
64.202.80.0/20 Transit: 22742 CT-EDU-NET, US
103.137.86.0/24 Origin: 138933 UNASSIGNED
103.137.86.0/24 Transit: 24490 TEIN2-SG-AP Trans-Eurasia Information Ne
192.31.196.0/24 Origin: 112 UNASSIGNED
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 /11:0 /12:9
/13:17 /14:33 /15:102 /16:1642 /17:298 /18:311
/19:402 /20:589 /21:613 /22:988 /23:1135 /24:7042
/25:48 /26:62 /27:67 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 242 254 KENET-AS, KE
32440 79 108 LONI, US
23024 52 112 OCDE, US
1916 39 247 Rede Nacional de Ensino e Pesquisa, BR
327700 34 40 MoRENet, MZ
200521 33 56 SEAP-AGE, ES
37215 31 37 MAREN, MW
25977 27 30 HCCS, US
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 14:88 23:3
24:3 31:2 35:2 38:6 40:1 41:144
42:8 44:5 45:27 46:5 49:6 52:1
58:12 59:9 60:4 61:2 62:6 63:4
64:33 65:1 66:5 67:32 68:1 69:10
70:2 71:1 72:7 74:17 76:39 77:4
78:3 79:10 80:8 81:25 82:2 83:6
84:6 85:24 86:1 87:1 89:10 91:36
93:4 94:2 95:2 96:5 101:3 102:23
103:207 104:72 108:5 109:3 110:1 111:16
114:1 116:6 118:18 119:18 121:28 122:8
123:8 124:38 125:1 128:63 129:27 130:85
131:29 132:56 133:155 134:70 136:197 137:116
138:9 139:4 140:26 141:1 142:23 143:10
144:23 145:2 146:117 147:20 148:7 149:12
150:9 151:3 152:72 153:6 154:6 155:43
156:67 157:13 158:32 159:114 160:27 161:17
162:13 163:71 164:7 165:7 167:10 168:34
169:7 170:13 172:3 173:6 175:17 177:4
179:11 180:14 181:1 182:1 184:1 185:36
186:1 187:1 188:12 189:3 190:16 191:2
192:1192 193:259 194:90 195:60 196:63 197:158
198:345 199:197 200:269 201:23 202:369 203:186
204:272 205:68 206:124 207:118 208:53 209:104
210:90 211:1 212:41 213:2 216:54 217:9
219:11 220:5 222:3 223:14
End of report
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