IPv4 R&E Routing Table Report 19:05 GMT Fri 06 Jan, 2023 IPv4 BGP Table (R&E) as seen at BDREN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/BDREN/ Analysis Summary ---------------- BGP routing table entries examined: 17596 Prefixes after maximum aggregation (per Origin AS): 10023 Deaggregation factor: 1.76 Unique aggregates announced (without unneeded subnets): 11137 Number of IPv4 prefixes with a valid ROA: 4426 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 13126 Total ASes present in the Internet Routing Table: 2680 Prefixes per ASN: 6.57 Origin-only ASes present in the Internet Routing Table: 2314 Origin ASes announcing only one prefix: 1047 Transit ASes present in the Internet Routing Table: 366 Transit-only ASes present in the Internet Routing Table: 58 Paths with bogon ASNs present in the IPv4 Routing Table: 4 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 20 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 7 Number of instances of unregistered ASNs: 7 Number of 32-bit ASNs allocated by the RIRs: 41026 Number of 32-bit ASNs visible in the Routing Table: 633 Prefixes from 32-bit ASNs in the Routing Table: 1789 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: 1 Number of addresses announced to Internet: 196143872 Equivalent to 11 /8s, 176 /16s and 235 /24s Percentage of available address space announced: 5.3 Percentage of allocated address space announced: 5.3 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: 1998 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4876 Total APNIC prefixes after maximum aggregation: 2322 APNIC Deaggregation factor: 2.10 Prefixes being announced from the APNIC address blocks: 4879 Unique aggregates announced from the APNIC address blocks: 2641 APNIC Region origin ASes present in the Internet Routing Table: 587 APNIC Prefixes per ASN: 8.31 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 5.6 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 231 Number of APNIC addresses announced to Internet: 45978880 Equivalent to 2 /8s, 189 /16s and 149 /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, 131072-151865 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: 7362 Total ARIN prefixes after maximum aggregation: 4226 ARIN Deaggregation factor: 1.74 Prefixes being announced from the ARIN address blocks: 7381 Unique aggregates announced from the ARIN address blocks: 4739 ARIN Region origin ASes present in the Internet Routing Table: 1171 ARIN Prefixes per ASN: 6.30 ARIN Region origin ASes announcing only one prefix: 421 ARIN Region transit ASes present in the Internet Routing Table: 154 Average ARIN Region AS path length visible: 5.5 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 179 Number of ARIN addresses announced to Internet: 87295744 Equivalent to 5 /8s, 52 /16s and 7 /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: 3562 Total RIPE prefixes after maximum aggregation: 2860 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3549 Unique aggregates announced from the RIPE address blocks: 2885 RIPE Region origin ASes present in the Internet Routing Table: 680 RIPE Prefixes per ASN: 5.22 RIPE Region origin ASes announcing only one prefix: 299 RIPE Region transit ASes present in the Internet Routing Table: 100 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 140 Number of RIPE addresses announced to Internet: 57906688 Equivalent to 3 /8s, 115 /16s and 150 /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: 1228 Total LACNIC prefixes after maximum aggregation: 505 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1225 Unique aggregates announced from the LACNIC address blocks: 713 LACNIC Region origin ASes present in the Internet Routing Table: 130 LACNIC Prefixes per ASN: 9.42 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 21 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 55 Number of LACNIC addresses announced to Internet: 4020480 Equivalent to 0 /8s, 61 /16s and 89 /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: 561 Total AfriNIC prefixes after maximum aggregation: 103 AfriNIC Deaggregation factor: 5.45 Prefixes being announced from the AfriNIC address blocks: 561 Unique aggregates announced from the AfriNIC address blocks: 158 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 11.69 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 941824 Equivalent to 0 /8s, 14 /16s and 95 /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 581 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 1237 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 118 AARNET-AS-AP Australian Academic and Re 4758 161 16 1 NICNET-VSNL-BOARDER-AP National Informa 55824 137 19 30 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 73 ERX-CERNET-BKB China Education and Rese 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 147 507 91 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 51 18 NJEDGE-NET, US 1736 81 16 1 MU-AS, US 3 78 496 15 MIT-GATEWAYS, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1935 251 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 134 24 4 ISU Internet Services Unit ISU, SA 559 114 550 105 SWITCH Peering requests: peering@switch 1103 96 1518 85 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 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 Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 157 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 97 24 55 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 15 CEDIA, EC 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 28614 36 2 2 Fundacao Universidade Regional de Blume Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 238 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 41 28 3 RENU, UG 3208 32 2 1 ARN, DZ 327700 32 16 1 MoRENet, MZ 37182 31 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37654 10 1 6 RwEdNet-AS, RW 37215 6 8 1 MAREN, MW Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 581 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 680 283 1935 251 DFN Verein zur Foerderung eines Deutsch 36914 238 82 3 KENET-AS, KE 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 786 186 1775 183 JANET Jisc Services Limited, GB 1237 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 118 AARNET-AS-AP Australian Academic and Re Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 36914 238 235 KENET-AS, KE 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 4758 161 160 NICNET-VSNL-BOARDER-AP National Informatics Cen 8895 134 130 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 137 107 NKN-CORE-NW NKN Core Network, IN 2920 107 100 LACOE, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65200 PRIVATE 43.224.124.0/22 132124 ICTA-LK Information and Comm 65200 PRIVATE 103.11.32.0/22 132124 ICTA-LK Information and Comm 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/BDREN/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 /13:18 /14:31 /15:120 /16:1904 /17:380 /18:426 /19:552 /20:836 /21:806 /22:1380 /23:1486 /24:9643 /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 225 238 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 34 49 LONI, US 46115 32 35 LUTHER, US 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 37182 30 31 TERNET, TZ 200521 30 53 SEAP-AGE, ES 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/BDREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1 5:15 8:2 12:1 14:85 18:43 23:8 24:3 31:7 35:4 38:9 40:1 41:142 42:10 44:5 45:36 46:5 47:1 49:10 50:3 52:1 58:1 59:20 60:4 61:3 62:10 63:33 64:55 65:1 66:32 67:41 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:9 78:3 79:10 80:17 81:28 82:8 83:6 84:4 85:42 86:5 87:1 89:10 91:47 92:1 93:4 94:4 95:4 96:5 97:2 98:2 101:6 102:12 103:332 104:72 108:8 109:10 110:2 111:16 114:23 116:6 117:61 118:32 119:22 121:27 122:8 123:8 124:39 125:4 128:86 129:41 130:88 131:62 132:61 133:149 134:95 136:199 137:74 138:9 139:6 140:40 141:1 142:39 143:23 144:23 145:2 146:118 147:56 148:192 149:12 150:130 151:7 152:64 153:14 154:6 155:40 156:68 157:29 158:37 159:116 160:26 161:19 162:20 163:74 164:156 165:51 166:1 167:16 168:58 169:10 170:10 171:1 172:2 173:7 175:31 176:8 177:10 179:9 180:17 181:1 182:1 184:3 185:46 186:3 187:19 188:13 189:3 190:18 191:36 192:1260 193:347 194:146 195:87 196:24 197:141 198:425 199:244 200:185 201:37 202:632 203:424 204:336 205:125 206:185 207:162 208:66 209:118 210:185 211:14 212:168 213:5 216:88 217:11 218:22 219:6 220:17 222:5 223:4 End of report