IPv4 R&E Routing Table Report 17:15 GMT Sun 29 May, 2022 IPv4 BGP Table (R&E) as seen at Janet. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Janet/ Analysis Summary ---------------- BGP routing table entries examined: 18125 Prefixes after maximum aggregation (per Origin AS): 10332 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11509 Number of IPv4 prefixes with a valid ROA: 3911 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 14214 Total ASes present in the Internet Routing Table: 2657 Prefixes per ASN: 6.82 Origin-only ASes present in the Internet Routing Table: 2292 Origin ASes announcing only one prefix: 1052 Transit ASes present in the Internet Routing Table: 365 Transit-only ASes present in the Internet Routing Table: 56 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 18 Max AS path prepend of ASN ( 1149) 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: 39501 Number of 32-bit ASNs visible in the Routing Table: 602 Prefixes from 32-bit ASNs in the Routing Table: 1643 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: 206395136 Equivalent to 12 /8s, 77 /16s and 87 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 1790 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4650 Total APNIC prefixes after maximum aggregation: 2266 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4651 Unique aggregates announced from the APNIC address blocks: 2568 APNIC Region origin ASes present in the Internet Routing Table: 578 APNIC Prefixes per ASN: 8.05 APNIC Region origin ASes announcing only one prefix: 252 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 227 Number of APNIC addresses announced to Internet: 46060800 Equivalent to 2 /8s, 190 /16s and 213 /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: 7956 Total ARIN prefixes after maximum aggregation: 4687 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 7975 Unique aggregates announced from the ARIN address blocks: 5281 ARIN Region origin ASes present in the Internet Routing Table: 1218 ARIN Prefixes per ASN: 6.55 ARIN Region origin ASes announcing only one prefix: 437 ARIN Region transit ASes present in the Internet Routing Table: 154 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 172 Number of ARIN addresses announced to Internet: 96248064 Equivalent to 5 /8s, 188 /16s and 161 /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: 3201 Total RIPE prefixes after maximum aggregation: 2618 RIPE Deaggregation factor: 1.22 Prefixes being announced from the RIPE address blocks: 3187 Unique aggregates announced from the RIPE address blocks: 2613 RIPE Region origin ASes present in the Internet Routing Table: 590 RIPE Prefixes per ASN: 5.40 RIPE Region origin ASes announcing only one prefix: 272 RIPE Region transit ASes present in the Internet Routing Table: 95 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 117 Number of RIPE addresses announced to Internet: 57215744 Equivalent to 3 /8s, 105 /16s and 11 /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: 1392 Total LACNIC prefixes after maximum aggregation: 562 LACNIC Deaggregation factor: 2.48 Prefixes being announced from the LACNIC address blocks: 1389 Unique aggregates announced from the LACNIC address blocks: 756 LACNIC Region origin ASes present in the Internet Routing Table: 163 LACNIC Prefixes per ASN: 8.52 LACNIC Region origin ASes announcing only one prefix: 68 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 5.8 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4216064 Equivalent to 0 /8s, 64 /16s and 85 /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: 921 Total AfriNIC prefixes after maximum aggregation: 194 AfriNIC Deaggregation factor: 4.75 Prefixes being announced from the AfriNIC address blocks: 921 Unique aggregates announced from the AfriNIC address blocks: 289 AfriNIC Region origin ASes present in the Internet Routing Table: 47 AfriNIC Prefixes per ASN: 19.60 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23 Number of AfriNIC addresses announced to Internet: 2653952 Equivalent to 0 /8s, 40 /16s and 127 /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 571 2140 454 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 4538 190 4192 73 ERX-CERNET-BKB China Education and Rese 1237 187 74 135 KREONET-AS-KR KISTI, KR 7575 177 330 123 AARNET-AS-AP Australian Academic and Re 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 55824 114 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/Janet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 210 702 178 DNIC-AS-00668, US 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 150 507 89 CSUNET-NW, US 18558 131 18 4 NETBLK-RCOEK, US 270 120 329 88 AS270, US 23024 114 7 17 OCDE, US 2920 107 34 6 LACOE, US 32531 91 16 1 FORDHAM-UNIVERSITY, US 21976 85 51 18 NJEDGE-NET, US Complete listing at https://bgp.nsrc.org/REN/Janet/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 284 1967 251 DFN Verein zur Foerderung eines Deutsch 786 185 1772 180 JANET Jisc Services Limited, GB 8895 138 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL 2614 96 27 76 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/Janet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 156 208 45 Rede Nacional de Ensino e Pesquisa, BR 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 46 17 2 Associacao Antonio Vieira - Unisinos, B 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 37 2 2 Fundacao Universidade Regional de Blume 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/Janet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 376 319 74 TENET-1, ZA 36914 209 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 49 48 9 PUKNET, ZA 327687 37 28 3 RENU, UG 327700 32 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 17 8 1 TERNET, TZ 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/Janet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 571 2140 454 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 376 319 74 TENET-1, ZA 680 284 1967 251 DFN Verein zur Foerderung eines Deutsch 668 210 702 178 DNIC-AS-00668, US 36914 209 82 3 KENET-AS, KE 376 202 178 151 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 4538 190 4192 73 ERX-CERNET-BKB China Education and Rese 1237 187 74 135 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/Janet/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 432 408 CSTNET-AS-AP Computer Network Information Cente 2018 376 302 TENET-1, ZA 36914 209 206 KENET-AS, KE 5786 200 199 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 138 134 ISU Internet Services Unit ISU, SA 18558 131 127 NETBLK-RCOEK, US 4538 190 117 ERX-CERNET-BKB China Education and Research Net 1916 156 111 Rede Nacional de Ensino e Pesquisa, BR 55824 114 104 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/Janet/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 22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, 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/Janet/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/Janet/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/Janet/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 /14:37 /15:122 /16:2028 /17:403 /18:433 /19:547 /20:837 /21:838 /22:1377 /23:1491 /24:9979 /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 196 209 KENET-AS, KE 8895 133 138 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 32440 30 45 LONI, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 40326 29 33 ECKERD-COLLEGE, US 327700 28 32 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/Janet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 5:7 6:4 8:2 12:1 14:84 18:43 23:7 24:3 31:7 35:4 37:6 38:9 40:1 41:120 42:12 44:5 45:31 46:6 47:1 49:10 50:1 52:1 58:10 59:21 60:4 61:3 62:7 63:34 64:51 66:35 67:43 68:8 69:19 70:2 71:1 72:9 74:18 76:33 77:7 78:3 79:10 80:4 81:28 82:3 83:6 84:9 85:24 86:4 87:1 88:1 89:10 91:39 93:10 94:4 95:4 96:5 97:1 98:2 101:8 102:13 103:305 104:76 108:8 109:10 110:4 111:16 114:23 116:7 117:61 118:33 119:23 121:28 122:8 123:8 124:39 125:2 128:90 129:38 130:93 131:84 132:58 133:145 134:97 136:200 137:73 138:9 139:5 140:49 141:1 142:41 143:31 144:25 145:2 146:129 147:59 148:191 149:12 150:130 151:5 152:77 153:13 154:29 155:51 156:66 157:21 158:44 159:116 160:26 161:21 162:20 163:60 164:19 165:57 166:2 167:16 168:123 169:10 170:52 172:2 173:7 175:31 176:8 177:11 179:9 180:21 181:1 182:6 184:4 185:36 186:3 187:19 188:12 189:5 190:33 191:34 192:1438 193:297 194:120 195:83 196:162 197:118 198:480 199:284 200:236 201:37 202:630 203:421 204:328 205:168 206:187 207:169 208:68 209:116 210:183 211:15 212:148 213:2 214:8 216:85 217:10 218:3 219:12 220:16 222:6 223:4 End of report