[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Tue Jul 11 17:05:39 UTC 2023
IPv4 R&E Routing Table Report 17:05 GMT Tue 11 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: 16848
Prefixes after maximum aggregation (per Origin AS): 9528
Deaggregation factor: 1.77
Unique aggregates announced (without unneeded subnets): 10461
Number of IPv4 prefixes with a valid ROA: 4625
Number of IPv4 prefixes with an invalid ROA: 1
Number of IPv4 prefixes with no ROA: 12222
Total ASes present in the Internet Routing Table: 2536
Prefixes per ASN: 6.64
Origin-only ASes present in the Internet Routing Table: 2192
Origin ASes announcing only one prefix: 977
Transit ASes present in the Internet Routing Table: 344
Transit-only ASes present in the Internet Routing Table: 61
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 20
Max AS path prepend of ASN (395156) 12
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: 42276
Number of 32-bit ASNs visible in the Routing Table: 598
Prefixes from 32-bit ASNs in the Routing Table: 1819
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: 192391616
Equivalent to 11 /8s, 119 /16s and 169 /24s
Percentage of available address space announced: 5.2
Percentage of allocated address space announced: 5.2
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: 1799
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4087
Total APNIC prefixes after maximum aggregation: 1918
APNIC Deaggregation factor: 2.13
Prefixes being announced from the APNIC address blocks: 4087
Unique aggregates announced from the APNIC address blocks: 2146
APNIC Region origin ASes present in the Internet Routing Table: 500
APNIC Prefixes per ASN: 8.17
APNIC Region origin ASes announcing only one prefix: 222
APNIC Region transit ASes present in the Internet Routing Table: 52
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 194
Number of APNIC addresses announced to Internet: 39194944
Equivalent to 2 /8s, 86 /16s and 17 /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: 7543
Total ARIN prefixes after maximum aggregation: 4372
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 7559
Unique aggregates announced from the ARIN address blocks: 4824
ARIN Region origin ASes present in the Internet Routing Table: 1192
ARIN Prefixes per ASN: 6.34
ARIN Region origin ASes announcing only one prefix: 413
ARIN Region transit ASes present in the Internet Routing Table: 150
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 184
Number of ARIN addresses announced to Internet: 90958048
Equivalent to 5 /8s, 107 /16s and 232 /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: 3088
Total RIPE prefixes after maximum aggregation: 2604
RIPE Deaggregation factor: 1.19
Prefixes being announced from the RIPE address blocks: 3077
Unique aggregates announced from the RIPE address blocks: 2642
RIPE Region origin ASes present in the Internet Routing Table: 572
RIPE Prefixes per ASN: 5.38
RIPE Region origin ASes announcing only one prefix: 255
RIPE Region transit ASes present in the Internet Routing Table: 92
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 126
Number of RIPE addresses announced to Internet: 57106816
Equivalent to 3 /8s, 103 /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
196608-213403
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: 1485
Total LACNIC prefixes after maximum aggregation: 561
LACNIC Deaggregation factor: 2.65
Prefixes being announced from the LACNIC address blocks: 1483
Unique aggregates announced from the LACNIC address blocks: 756
LACNIC Region origin ASes present in the Internet Routing Table: 164
LACNIC Prefixes per ASN: 9.04
LACNIC Region origin ASes announcing only one prefix: 63
LACNIC Region transit ASes present in the Internet Routing Table: 27
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68
Number of LACNIC addresses announced to Internet: 4205088
Equivalent to 0 /8s, 64 /16s and 42 /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: 639
Total AfriNIC prefixes after maximum aggregation: 67
AfriNIC Deaggregation factor: 9.54
Prefixes being announced from the AfriNIC address blocks: 639
Unique aggregates announced from the AfriNIC address blocks: 90
AfriNIC Region origin ASes present in the Internet Routing Table: 44
AfriNIC Prefixes per ASN: 14.52
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: 4.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26
Number of AfriNIC addresses announced to Internet: 922112
Equivalent to 0 /8s, 14 /16s and 18 /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 2147 466 SINET-AS Research Organization of Infor
7497 434 180 23 CSTNET-AS-AP Computer Network Informati
4538 197 4192 73 ERX-CERNET-BKB China Education and Rese
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
55824 120 18 13 NKN-CORE-NW NKN Core Network, IN
4621 70 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
2697 57 4 33 ERX-ERNET-AS Education and Research Net
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
376 202 178 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2152 143 507 93 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
81 128 521 31 NCREN, US
270 117 329 82 AS270, US
23024 113 7 17 OCDE, US
2920 109 34 7 LACOE, US
32440 108 35 18 LONI, US
21976 85 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
680 284 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
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/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 257 192 43 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 100 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 47 16 1 Red de Interconexion Universitaria, AR
61468 43 3 15 CEDIA, EC
28571 39 39 17 UNIVERSIDADE DE SAO PAULO, BR
28614 38 2 2 Fundacao Universidade Regional de Blume
19611 37 17 2 Associacao Antonio Vieira - Unisinos, B
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
37074 13 8 2 UG-AS, GH
37654 10 1 6 RwEdNet-AS, RW
31960 5 1 1 EMUNET, MZ
328358 5 1 1 Makerere-AS, UG
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 2147 466 SINET-AS Research Organization of Infor
7497 434 180 23 CSTNET-AS-AP Computer Network Informati
680 284 1919 250 DFN Verein zur Foerderung eines Deutsch
1916 257 192 43 Rede Nacional de Ensino e Pesquisa, BR
36914 254 82 3 KENET-AS, KE
376 202 178 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
4538 197 4192 73 ERX-CERNET-BKB China Education and Rese
786 186 1767 183 JANET Jisc Services Limited, GB
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
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 434 411 CSTNET-AS-AP Computer Network Information Cente
36914 254 251 KENET-AS, KE
1916 257 214 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 197 124 ERX-CERNET-BKB China Education and Research Net
55824 120 107 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
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
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
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 /14:34 /15:116 /16:1911 /17:381 /18:410
/19:515 /20:771 /21:752 /22:1312 /23:1369 /24:9072
/25:47 /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 52 113 OCDE, US
1916 39 257 Rede Nacional de Ensino e Pesquisa, BR
327700 34 40 MoRENet, MZ
200521 33 56 SEAP-AGE, ES
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
37215 31 37 MAREN, MW
25977 30 44 HCCS, 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 23:6
24:3 31:7 35:2 38:9 40:1 41:142
42:16 44:6 45:28 46:5 47:1 49:9
50:1 52:1 58:12 59:20 60:4 61:2
62:6 63:33 64:43 65:1 66:33 67:41
68:8 69:19 70:2 71:1 72:7 74:50
76:40 77:8 78:3 79:10 80:5 81:25
82:2 83:6 84:8 85:24 86:3 87:1
89:10 91:35 93:4 94:4 95:2 97:1
98:2 101:4 102:30 103:236 104:80 108:7
109:3 110:1 111:16 114:13 116:6 117:2
118:33 119:18 121:28 122:8 123:8 124:38
125:4 128:87 129:39 130:87 131:54 132:62
133:155 134:76 136:198 137:134 138:9 139:5
140:34 141:1 142:39 143:22 144:23 145:2
146:117 147:51 148:192 149:12 150:30 151:11
152:136 153:14 154:6 155:47 156:67 157:23
158:36 159:115 160:27 161:24 162:20 163:74
164:10 165:46 166:1 167:13 168:80 169:8
170:64 172:3 173:7 175:27 177:6 179:12
180:15 181:1 182:1 184:3 185:37 186:3
187:17 188:12 189:3 190:18 191:12 192:1378
193:280 194:119 195:70 196:63 197:162 198:438
199:252 200:298 201:38 202:626 203:330 204:341
205:122 206:171 207:159 208:70 209:113 210:90
211:1 212:41 213:2 216:58 217:10 218:20
219:12 220:9 222:2 223:14
End of report
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