[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Jul 10 22:20:37 UTC 2023
IPv4 R&E Routing Table Report 22:20 GMT Mon 10 Jul, 2023
IPv4 BGP Table (R&E) as seen at ESnet.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 19895
Prefixes after maximum aggregation (per Origin AS): 11515
Deaggregation factor: 1.73
Unique aggregates announced (without unneeded subnets): 12895
Number of IPv4 prefixes with a valid ROA: 5230
Number of IPv4 prefixes with an invalid ROA: 49
Number of IPv4 prefixes with no ROA: 14616
Total ASes present in the Internet Routing Table: 2929
Prefixes per ASN: 6.79
Origin-only ASes present in the Internet Routing Table: 2525
Origin ASes announcing only one prefix: 1122
Transit ASes present in the Internet Routing Table: 404
Transit-only ASes present in the Internet Routing Table: 79
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 19
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 12
Number of instances of unregistered ASNs: 12
Number of 32-bit ASNs allocated by the RIRs: 42273
Number of 32-bit ASNs visible in the Routing Table: 661
Prefixes from 32-bit ASNs in the Routing Table: 2018
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: 178790400
Equivalent to 10 /8s, 168 /16s and 32 /24s
Percentage of available address space announced: 4.8
Percentage of allocated address space announced: 4.8
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: 2449
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4457
Total APNIC prefixes after maximum aggregation: 2174
APNIC Deaggregation factor: 2.05
Prefixes being announced from the APNIC address blocks: 4442
Unique aggregates announced from the APNIC address blocks: 2515
APNIC Region origin ASes present in the Internet Routing Table: 511
APNIC Prefixes per ASN: 8.69
APNIC Region origin ASes announcing only one prefix: 214
APNIC Region transit ASes present in the Internet Routing Table: 56
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 186
Number of APNIC addresses announced to Internet: 35700224
Equivalent to 2 /8s, 32 /16s and 190 /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: 9703
Total ARIN prefixes after maximum aggregation: 5875
ARIN Deaggregation factor: 1.65
Prefixes being announced from the ARIN address blocks: 9672
Unique aggregates announced from the ARIN address blocks: 6546
ARIN Region origin ASes present in the Internet Routing Table: 1488
ARIN Prefixes per ASN: 6.50
ARIN Region origin ASes announcing only one prefix: 544
ARIN Region transit ASes present in the Internet Routing Table: 200
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 249
Number of ARIN addresses announced to Internet: 82341120
Equivalent to 4 /8s, 232 /16s and 109 /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: 3278
Total RIPE prefixes after maximum aggregation: 2742
RIPE Deaggregation factor: 1.20
Prefixes being announced from the RIPE address blocks: 3337
Unique aggregates announced from the RIPE address blocks: 2866
RIPE Region origin ASes present in the Internet Routing Table: 645
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 285
RIPE Region transit ASes present in the Internet Routing Table: 97
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: 135
Number of RIPE addresses announced to Internet: 54151424
Equivalent to 3 /8s, 58 /16s and 73 /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: 1390
Total LACNIC prefixes after maximum aggregation: 550
LACNIC Deaggregation factor: 2.53
Prefixes being announced from the LACNIC address blocks: 1387
Unique aggregates announced from the LACNIC address blocks: 749
LACNIC Region origin ASes present in the Internet Routing Table: 156
LACNIC Prefixes per ASN: 8.89
LACNIC Region origin ASes announcing only one prefix: 55
LACNIC Region transit ASes present in the Internet Routing Table: 25
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66
Number of LACNIC addresses announced to Internet: 4051968
Equivalent to 0 /8s, 61 /16s and 212 /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: 1055
Total AfriNIC prefixes after maximum aggregation: 164
AfriNIC Deaggregation factor: 6.43
Prefixes being announced from the AfriNIC address blocks: 1054
Unique aggregates announced from the AfriNIC address blocks: 216
AfriNIC Region origin ASes present in the Internet Routing Table: 46
AfriNIC Prefixes per ASN: 22.91
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: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2540800
Equivalent to 0 /8s, 38 /16s and 197 /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 584 2143 456 SINET-AS Research Organization of Infor
7497 434 180 23 CSTNET-AS-AP Computer Network Informati
1237 186 74 137 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 329 120 AARNET-AS-AP Australian Academic and Re
55824 118 18 11 NKN-CORE-NW NKN Core Network, IN
4538 112 2368 69 ERX-CERNET-BKB China Education and Rese
4621 69 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
668 216 620 179 DNIC-AS-00668, US
376 202 178 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
18530 161 27 128 ISOMEDIA-1, US
2152 139 507 94 CSUNET-NW, US
11404 134 178 106 AS-WAVE-1, US
18558 134 18 4 NETBLK-RCOEK, US
81 127 473 32 NCREN, US
270 115 329 84 AS270, US
23024 113 7 17 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1919 249 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
2614 94 27 74 ROEDUNET, RO
1103 93 1246 82 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
553 74 465 74 BELWUE BelWue-Koordination, DE
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
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 219 192 42 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 103 24 47 Red Universitaria Nacional, CL
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
1251 56 36 15 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
4270 48 16 1 Red de Interconexion Universitaria, AR
61468 42 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
271640 34 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 349 319 71 TENET-1, ZA
36914 259 82 3 KENET-AS, KE
327687 165 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
327700 41 16 1 MoRENet, MZ
37215 37 8 1 MAREN, MW
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 584 2143 456 SINET-AS Research Organization of Infor
7497 434 180 23 CSTNET-AS-AP Computer Network Informati
2018 349 319 71 TENET-1, ZA
680 283 1919 249 DFN Verein zur Foerderung eines Deutsch
36914 259 82 3 KENET-AS, KE
1916 219 192 42 Rede Nacional de Ensino e Pesquisa, BR
668 216 620 179 DNIC-AS-00668, US
376 202 178 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
786 186 1767 183 JANET Jisc Services Limited, GB
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 434 411 CSTNET-AS-AP Computer Network Information Cente
2018 349 278 TENET-1, ZA
36914 259 256 KENET-AS, KE
5786 198 197 UPRENET, PR
1916 219 177 Rede Nacional de Ensino e Pesquisa, BR
58647 178 176 KAGAWAU-AS Kagawa University, JP
327687 165 162 RENU, UG
18558 134 130 NETBLK-RCOEK, US
55824 118 107 NKN-CORE-NW NKN Core Network, IN
2920 107 100 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/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
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
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
19176 UNALLOCATED 206.174.131.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 206.174.140.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 206.174.141.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 206.174.142.0/24 32278 GETWIRELESS, US
19176 UNALLOCATED 206.174.144.0/24 32278 GETWIRELESS, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/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
102.36.194.0/23 Origin: 2018 TENET-1, ZA
102.36.194.0/23 Transit: 293 ESNET, US
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/ESnet/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 /9:0 /10:0 /11:0 /12:0
/13:0 /14:35 /15:122 /16:2025 /17:441 /18:453
/19:608 /20:925 /21:955 /22:1656 /23:1734 /24:10941
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 247 259 KENET-AS, KE
30041 56 66 RACE, US
18530 55 161 ISOMEDIA-1, US
23024 52 113 OCDE, US
19194 43 45 JOVITA, US
327700 35 41 MoRENet, MZ
18632 34 66 VOLCANO-VISION, US
32440 34 49 LONI, US
16713 33 56 NOANET-WA, US
200521 33 56 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 6:4 8:6 12:1 14:89
18:42 23:43 24:7 31:8 35:4 37:3
38:26 40:1 41:146 42:10 44:7 45:47
46:6 47:1 49:9 50:9 52:3 58:1
59:19 60:4 61:3 62:7 63:89 64:104
65:22 66:64 67:57 68:18 69:48 70:3
71:1 72:30 74:60 76:48 77:9 78:3
79:10 80:13 81:26 82:5 83:6 84:5
85:41 86:1 87:6 89:10 91:38 92:1
93:6 94:6 95:2 97:3 98:4 101:2
102:29 103:221 104:109 107:30 108:9 109:6
111:16 114:23 116:6 117:61 118:32 119:18
121:26 122:8 123:8 124:38 125:4 128:87
129:45 130:89 131:55 132:61 133:154 134:105
136:202 137:135 138:9 139:5 140:54 141:2
142:51 143:21 144:28 145:2 146:198 147:67
148:161 149:12 150:42 151:14 152:141 153:14
154:30 155:63 156:67 157:22 158:39 159:115
160:30 161:63 162:47 163:78 164:10 165:46
166:3 167:14 168:111 169:8 170:84 172:6
173:8 174:8 175:27 177:5 179:12 180:15
181:1 182:1 184:3 185:49 186:3 187:19
188:14 189:3 190:18 191:13 192:1515 193:287
194:122 195:58 196:200 197:164 198:564 199:339
200:293 201:39 202:613 203:430 204:404 205:145
206:221 207:179 208:119 209:140 210:176 211:2
212:41 213:5 214:8 216:119 217:11 218:22
219:6 220:17 222:2 223:4
End of report
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