IPv4 R&E Routing Table Report 18:50 GMT Sun 18 Sep, 2022 IPv4 BGP Table (R&E) as seen at KENET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KENET/ Analysis Summary ---------------- BGP routing table entries examined: 16968 Prefixes after maximum aggregation (per Origin AS): 9488 Deaggregation factor: 1.79 Unique aggregates announced (without unneeded subnets): 10542 Number of IPv4 prefixes with a valid ROA: 4190 Number of IPv4 prefixes with an invalid ROA: 8 Number of IPv4 prefixes with no ROA: 12770 Total ASes present in the Internet Routing Table: 2545 Prefixes per ASN: 6.67 Origin-only ASes present in the Internet Routing Table: 2197 Origin ASes announcing only one prefix: 1010 Transit ASes present in the Internet Routing Table: 348 Transit-only ASes present in the Internet Routing Table: 62 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 18 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 40181 Number of 32-bit ASNs visible in the Routing Table: 588 Prefixes from 32-bit ASNs in the Routing Table: 1561 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 195830528 Equivalent to 11 /8s, 172 /16s and 35 /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: 2040 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4668 Total APNIC prefixes after maximum aggregation: 2299 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4669 Unique aggregates announced from the APNIC address blocks: 2612 APNIC Region origin ASes present in the Internet Routing Table: 587 APNIC Prefixes per ASN: 7.95 APNIC Region origin ASes announcing only one prefix: 260 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 229 Number of APNIC addresses announced to Internet: 46038016 Equivalent to 2 /8s, 190 /16s and 124 /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: 6494 Total ARIN prefixes after maximum aggregation: 3656 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 6504 Unique aggregates announced from the ARIN address blocks: 4034 ARIN Region origin ASes present in the Internet Routing Table: 1053 ARIN Prefixes per ASN: 6.18 ARIN Region origin ASes announcing only one prefix: 381 ARIN Region transit ASes present in the Internet Routing Table: 144 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 156 Number of ARIN addresses announced to Internet: 86065920 Equivalent to 5 /8s, 33 /16s and 67 /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: 3473 Total RIPE prefixes after maximum aggregation: 2799 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3465 Unique aggregates announced from the RIPE address blocks: 2834 RIPE Region origin ASes present in the Internet Routing Table: 667 RIPE Prefixes per ASN: 5.19 RIPE Region origin ASes announcing only one prefix: 303 RIPE Region transit ASes present in the Internet Routing Table: 96 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 133 Number of RIPE addresses announced to Internet: 57764864 Equivalent to 3 /8s, 113 /16s and 108 /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: 1382 Total LACNIC prefixes after maximum aggregation: 571 LACNIC Deaggregation factor: 2.42 Prefixes being announced from the LACNIC address blocks: 1382 Unique aggregates announced from the LACNIC address blocks: 788 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 8.58 LACNIC Region origin ASes announcing only one prefix: 64 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4208896 Equivalent to 0 /8s, 64 /16s and 57 /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: 946 Total AfriNIC prefixes after maximum aggregation: 158 AfriNIC Deaggregation factor: 5.99 Prefixes being announced from the AfriNIC address blocks: 946 Unique aggregates announced from the AfriNIC address blocks: 272 AfriNIC Region origin ASes present in the Internet Routing Table: 10 AfriNIC Prefixes per ASN: 94.60 AfriNIC Region origin ASes announcing only one prefix: 2 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 2.2 Max AfriNIC Region AS path length visible: 6 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3 Number of AfriNIC addresses announced to Internet: 1752320 Equivalent to 0 /8s, 26 /16s and 189 /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 565 2140 455 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 1237 187 74 135 KREONET-AS-KR KISTI, KR 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 113 18 10 NKN-CORE-NW NKN Core Network, IN 4621 78 37 10 UNINET-AS-AP UNINET-, TH 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 150 507 91 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 5786 129 16 1 UPRENET, PR 270 120 329 85 AS270, US 23024 114 7 17 OCDE, US 2920 108 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 79 496 16 MIT-GATEWAYS, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 276 1934 245 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 139 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 87 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 2200 63 583 58 FR-RENATER Reseau National de telecommu 1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/KENET/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 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 96 24 54 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 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 42 3 15 CEDIA, EC 28571 40 40 18 UNIVERSIDADE DE SAO PAULO, BR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 467 81 36 KENET-AS, KE 2018 374 319 73 TENET-1, ZA 2561 67 4 32 EUN, EG 6879 24 2 9 ENSTINET-, EG 30983 4 4 1 MARWAN-AS, MA 327945 4 0 2 ILRI, KE 328225 2 0 1 Strathmore-University, KE 328762 2 0 2 Mansoora-University, EG 3208 1 2 1 ARN, DZ 37717 1 16 1 EL-Khawarizmi, TN Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 565 2140 455 SINET-AS Research Organization of Infor 36914 467 81 36 KENET-AS, KE 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 374 319 73 TENET-1, ZA 680 276 1934 245 DFN Verein zur Foerderung eines Deutsch 4538 189 4192 73 ERX-CERNET-BKB China Education and Rese 1237 187 74 135 KREONET-AS-KR KISTI, KR 786 186 1775 183 JANET Jisc Services Limited, GB 7575 175 329 121 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/KENET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 467 431 KENET-AS, KE 7497 432 408 CSTNET-AS-AP Computer Network Information Cente 2018 374 301 TENET-1, ZA 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 139 135 ISU Internet Services Unit ISU, SA 18558 137 133 NETBLK-RCOEK, US 5786 129 128 UPRENET, PR 4538 189 116 ERX-CERNET-BKB China Education and Research Net 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 113 103 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/KENET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 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/KENET/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/KENET/data-spar 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 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, NL Complete listing at https://bgp.nsrc.org/REN/KENET/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 /15:121 /16:1887 /17:382 /18:401 /19:518 /20:794 /21:808 /22:1289 /23:1443 /24:9257 /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 447 467 KENET-AS, KE 8895 134 139 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 32440 33 48 LONI, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US 200521 28 49 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/KENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:15 8:2 12:1 14:85 18:43 23:5 24:2 31:7 35:4 38:7 40:1 41:182 42:15 44:5 45:34 46:5 47:1 49:10 52:1 58:11 59:21 60:4 61:3 62:9 63:33 64:50 65:1 66:31 67:43 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:7 78:3 79:10 80:18 81:28 82:7 83:6 84:5 85:43 86:5 87:1 88:1 89:10 91:45 92:1 93:4 94:4 95:3 97:1 98:2 101:8 102:1 103:310 104:73 108:8 109:10 110:4 111:15 114:23 116:6 117:61 118:33 119:23 121:29 122:8 123:8 124:39 125:4 128:84 129:36 130:89 131:46 132:50 133:145 134:88 136:131 137:59 138:11 139:4 140:41 141:1 143:24 144:23 145:1 146:131 147:56 148:191 149:12 150:130 151:6 152:71 153:14 154:22 155:51 156:66 157:21 158:41 159:115 160:26 161:20 162:19 163:66 164:10 165:51 166:1 167:12 168:120 169:10 170:56 172:2 173:7 175:30 176:8 177:11 179:10 180:18 181:1 182:3 184:2 185:43 186:3 187:1 188:13 189:3 190:33 191:36 192:1308 193:311 194:143 195:92 196:136 197:255 198:334 199:146 200:228 201:22 202:633 203:427 204:301 205:52 206:99 207:104 208:64 209:96 210:181 211:13 212:169 213:5 216:64 217:11 218:22 219:12 220:15 222:6 223:6 End of report