IPv4 R&E Routing Table Report 18:50 GMT Mon 19 Dec, 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: 18083 Prefixes after maximum aggregation (per Origin AS): 10236 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11436 Number of IPv4 prefixes with a valid ROA: 4388 Number of IPv4 prefixes with an invalid ROA: 12 Number of IPv4 prefixes with no ROA: 13683 Total ASes present in the Internet Routing Table: 2689 Prefixes per ASN: 6.72 Origin-only ASes present in the Internet Routing Table: 2324 Origin ASes announcing only one prefix: 1043 Transit ASes present in the Internet Routing Table: 365 Transit-only ASes present in the Internet Routing Table: 66 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: 20 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: 40933 Number of 32-bit ASNs visible in the Routing Table: 609 Prefixes from 32-bit ASNs in the Routing Table: 1652 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: 201800448 Equivalent to 12 /8s, 7 /16s and 59 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 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: 2122 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4668 Total APNIC prefixes after maximum aggregation: 2290 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4669 Unique aggregates announced from the APNIC address blocks: 2614 APNIC Region origin ASes present in the Internet Routing Table: 580 APNIC Prefixes per ASN: 8.05 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 63 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: 225 Number of APNIC addresses announced to Internet: 45973504 Equivalent to 2 /8s, 189 /16s and 128 /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: 7589 Total ARIN prefixes after maximum aggregation: 4436 ARIN Deaggregation factor: 1.71 Prefixes being announced from the ARIN address blocks: 7605 Unique aggregates announced from the ARIN address blocks: 4977 ARIN Region origin ASes present in the Internet Routing Table: 1203 ARIN Prefixes per ASN: 6.32 ARIN Region origin ASes announcing only one prefix: 435 ARIN Region transit ASes present in the Internet Routing Table: 158 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 180 Number of ARIN addresses announced to Internet: 92185856 Equivalent to 5 /8s, 126 /16s and 165 /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: 3506 Total RIPE prefixes after maximum aggregation: 2805 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3495 Unique aggregates announced from the RIPE address blocks: 2857 RIPE Region origin ASes present in the Internet Routing Table: 668 RIPE Prefixes per ASN: 5.23 RIPE Region origin ASes announcing only one prefix: 297 RIPE Region transit ASes present in the Internet Routing Table: 99 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 136 Number of RIPE addresses announced to Internet: 57755648 Equivalent to 3 /8s, 113 /16s and 72 /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: 1409 Total LACNIC prefixes after maximum aggregation: 572 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1406 Unique aggregates announced from the LACNIC address blocks: 779 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 8.90 LACNIC Region origin ASes announcing only one prefix: 61 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4149504 Equivalent to 0 /8s, 63 /16s and 81 /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: 906 Total AfriNIC prefixes after maximum aggregation: 128 AfriNIC Deaggregation factor: 7.08 Prefixes being announced from the AfriNIC address blocks: 906 Unique aggregates announced from the AfriNIC address blocks: 207 AfriNIC Region origin ASes present in the Internet Routing Table: 9 AfriNIC Prefixes per ASN: 100.67 AfriNIC Region origin ASes announcing only one prefix: 1 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 2.0 Max AfriNIC Region AS path length visible: 5 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 2 Number of AfriNIC addresses announced to Internet: 1735424 Equivalent to 0 /8s, 26 /16s and 123 /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 575 2157 462 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 1237 186 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 329 118 AARNET-AS-AP Australian Academic and Re 55824 113 18 11 NKN-CORE-NW NKN Core Network, IN 4621 70 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 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 146 507 90 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 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 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 133 24 3 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 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 62 583 57 FR-RENATER Reseau National de telecommu 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 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 57 86 37 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 480 81 37 KENET-AS, KE 2018 352 319 71 TENET-1, ZA 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 2561 7 0 5 EUN, EG 30983 4 4 1 MARWAN-AS, MA 327945 3 0 2 ILRI, KE 328225 3 0 1 Strathmore-University, KE 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 575 2157 462 SINET-AS Research Organization of Infor 36914 480 81 37 KENET-AS, KE 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 352 319 71 TENET-1, ZA 680 276 1934 245 DFN Verein zur Foerderung eines Deutsch 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 786 186 1775 183 JANET Jisc Services Limited, GB 1237 186 74 134 KREONET-AS-KR KISTI, KR 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 480 443 KENET-AS, KE 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 352 281 TENET-1, ZA 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 18558 134 130 NETBLK-RCOEK, US 8895 133 130 ISU Internet Services Unit ISU, SA 4538 191 118 ERX-CERNET-BKB China Education and Research Net 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 113 102 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 /16:1966 /17:406 /18:427 /19:537 /20:821 /21:844 /22:1349 /23:1511 /24:10033 /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 460 480 KENET-AS, KE 8895 128 133 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 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US Complete listing at https://bgp.nsrc.org/REN/KENET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 8:2 12:1 14:84 18:43 23:6 24:2 31:7 35:4 37:1 38:9 40:1 41:186 42:15 44:5 45:33 46:5 47:1 49:9 52:1 58:12 59:21 60:4 61:3 62:10 63:33 64:51 65:1 66:33 67:42 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:8 78:3 79:10 80:17 81:28 82:8 83:6 84:5 85:42 86:5 87:1 88:1 89:10 91:45 92:1 93:4 94:4 95:3 96:5 97:2 98:2 101:8 103:311 104:72 108:8 109:10 110:4 111:15 114:23 116:6 117:61 118:33 119:23 121:28 122:8 123:8 124:39 125:4 128:86 129:38 130:88 131:62 132:59 133:146 134:96 136:199 137:58 138:9 139:6 140:41 141:1 142:39 143:24 144:23 145:1 146:129 147:56 148:192 149:12 150:130 151:7 152:71 153:14 154:21 155:52 156:68 157:34 158:39 159:116 160:26 161:19 162:20 163:66 164:10 165:51 166:1 167:16 168:107 169:10 170:56 171:1 172:2 173:7 175:31 176:8 177:10 179:10 180:17 181:1 182:5 184:3 185:44 186:3 187:17 188:13 189:3 190:18 191:36 192:1416 193:305 194:145 195:67 196:134 197:264 198:466 199:250 200:228 201:36 202:621 203:428 204:334 205:125 206:183 207:159 208:66 209:112 210:182 211:14 212:165 213:5 216:82 217:11 218:22 219:12 220:15 222:6 223:11 End of report