IPv4 R&E Routing Table Report 17:15 GMT Wed 05 Oct, 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: 18261 Prefixes after maximum aggregation (per Origin AS): 10428 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11643 Number of IPv4 prefixes with a valid ROA: 4145 Number of IPv4 prefixes with an invalid ROA: 35 Number of IPv4 prefixes with no ROA: 14081 Total ASes present in the Internet Routing Table: 2674 Prefixes per ASN: 6.83 Origin-only ASes present in the Internet Routing Table: 2315 Origin ASes announcing only one prefix: 1047 Transit ASes present in the Internet Routing Table: 359 Transit-only ASes present in the Internet Routing Table: 56 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.7 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: 40338 Number of 32-bit ASNs visible in the Routing Table: 625 Prefixes from 32-bit ASNs in the Routing Table: 1776 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: 206643968 Equivalent to 12 /8s, 81 /16s and 35 /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: 1888 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4664 Total APNIC prefixes after maximum aggregation: 2300 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4665 Unique aggregates announced from the APNIC address blocks: 2596 APNIC Region origin ASes present in the Internet Routing Table: 588 APNIC Prefixes per ASN: 7.93 APNIC Region origin ASes announcing only one prefix: 258 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 228 Number of APNIC addresses announced to Internet: 46159872 Equivalent to 2 /8s, 192 /16s and 88 /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: 7994 Total ARIN prefixes after maximum aggregation: 4729 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 8007 Unique aggregates announced from the ARIN address blocks: 5314 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 6.52 ARIN Region origin ASes announcing only one prefix: 440 ARIN Region transit ASes present in the Internet Routing Table: 156 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: 182 Number of ARIN addresses announced to Internet: 96433920 Equivalent to 5 /8s, 191 /16s and 119 /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: 3202 Total RIPE prefixes after maximum aggregation: 2601 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3191 Unique aggregates announced from the RIPE address blocks: 2629 RIPE Region origin ASes present in the Internet Routing Table: 583 RIPE Prefixes per ASN: 5.47 RIPE Region origin ASes announcing only one prefix: 264 RIPE Region transit ASes present in the Internet Routing Table: 89 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 120 Number of RIPE addresses announced to Internet: 57184512 Equivalent to 3 /8s, 104 /16s and 145 /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: 1439 Total LACNIC prefixes after maximum aggregation: 580 LACNIC Deaggregation factor: 2.48 Prefixes being announced from the LACNIC address blocks: 1439 Unique aggregates announced from the LACNIC address blocks: 795 LACNIC Region origin ASes present in the Internet Routing Table: 163 LACNIC Prefixes per ASN: 8.83 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 5.7 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4218368 Equivalent to 0 /8s, 64 /16s and 94 /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: 957 Total AfriNIC prefixes after maximum aggregation: 213 AfriNIC Deaggregation factor: 4.49 Prefixes being announced from the AfriNIC address blocks: 957 Unique aggregates announced from the AfriNIC address blocks: 307 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 19.14 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.0 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2646784 Equivalent to 0 /8s, 40 /16s and 99 /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 568 2156 456 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 115 18 11 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 668 221 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 149 507 90 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 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 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 680 281 1935 249 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 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 81 676 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 2200 64 599 59 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 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 28614 37 2 2 Fundacao Universidade Regional de Blume 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 368 319 71 TENET-1, ZA 36914 247 82 3 KENET-AS, KE 2561 67 4 32 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 40 28 3 RENU, UG 327700 32 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 19 1 14 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 568 2156 456 SINET-AS Research Organization of Infor 7497 432 182 24 CSTNET-AS-AP Computer Network Informati 2018 368 319 71 TENET-1, ZA 680 281 1935 249 DFN Verein zur Foerderung eines Deutsch 36914 247 82 3 KENET-AS, KE 668 221 703 181 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 4538 189 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 368 297 TENET-1, ZA 36914 247 244 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 137 133 NETBLK-RCOEK, US 4538 189 116 ERX-CERNET-BKB China Education and Research Net 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 115 104 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 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/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 /14:36 /15:122 /16:2029 /17:404 /18:440 /19:559 /20:837 /21:843 /22:1385 /23:1510 /24:10063 /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 234 247 KENET-AS, KE 8895 133 138 ISU Internet Services Unit ISU, SA 23024 53 114 OCDE, US 32440 32 47 LONI, US 46115 32 35 LUTHER, US 25977 31 45 HCCS, US 28614 31 37 Fundacao Universidade Regional de Blumenau, BR 200521 31 52 SEAP-AGE, ES 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 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 14:86 18:43 23:6 24:3 31:7 35:4 38:9 40:1 41:127 42:12 44:5 45:31 46:5 47:1 49:10 50:1 52:1 58:11 59:21 60:4 61:3 62:7 63:33 64:51 65:1 66:34 67:43 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:7 78:3 79:10 80:4 81:28 82:2 83:6 84:9 85:24 86:3 87:1 88:1 89:10 91:42 93:4 94:4 95:4 96:5 97:2 98:2 101:8 102:10 103:316 104:74 108:8 109:10 110:4 111:16 114:23 116:6 117:61 118:33 119:23 121:28 122:8 123:8 124:39 125:2 128:86 129:38 130:90 131:77 132:60 133:144 134:98 136:200 137:76 138:11 139:5 140:61 141:1 142:39 143:31 144:25 145:2 146:131 147:59 148:191 149:12 150:130 151:5 152:77 153:14 154:27 155:51 156:67 157:23 158:42 159:116 160:26 161:21 162:20 163:75 164:10 165:51 166:1 167:16 168:120 169:10 170:57 172:2 173:7 175:30 176:8 177:11 179:10 180:18 181:1 182:4 184:2 185:38 186:3 187:19 188:12 189:3 190:34 191:36 192:1443 193:295 194:121 195:89 196:158 197:151 198:483 199:275 200:231 201:38 202:632 203:427 204:349 205:125 206:189 207:168 208:65 209:118 210:184 211:13 212:174 213:2 214:8 216:86 217:10 218:3 219:12 220:17 222:6 223:6 End of report