IPv4 R&E Routing Table Report 17:15 GMT Mon 15 May, 2023 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: 18255 Prefixes after maximum aggregation (per Origin AS): 10309 Deaggregation factor: 1.77 Unique aggregates announced (without unneeded subnets): 11477 Number of IPv4 prefixes with a valid ROA: 4462 Number of IPv4 prefixes with an invalid ROA: 0 Number of IPv4 prefixes with no ROA: 13793 Total ASes present in the Internet Routing Table: 2622 Prefixes per ASN: 6.96 Origin-only ASes present in the Internet Routing Table: 2265 Origin ASes announcing only one prefix: 1011 Transit ASes present in the Internet Routing Table: 357 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: 20 Max AS path prepend of ASN (395156) 12 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: 41869 Number of 32-bit ASNs visible in the Routing Table: 606 Prefixes from 32-bit ASNs in the Routing Table: 1764 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: 2 Number of addresses announced to Internet: 205116672 Equivalent to 12 /8s, 57 /16s and 213 /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: 1880 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4618 Total APNIC prefixes after maximum aggregation: 2235 APNIC Deaggregation factor: 2.07 Prefixes being announced from the APNIC address blocks: 4619 Unique aggregates announced from the APNIC address blocks: 2538 APNIC Region origin ASes present in the Internet Routing Table: 533 APNIC Prefixes per ASN: 8.67 APNIC Region origin ASes announcing only one prefix: 225 APNIC Region transit ASes present in the Internet Routing Table: 55 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 14 Number of APNIC region 32-bit ASNs visible in the Routing Table: 199 Number of APNIC addresses announced to Internet: 45791744 Equivalent to 2 /8s, 186 /16s and 186 /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: 7952 Total ARIN prefixes after maximum aggregation: 4701 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 7969 Unique aggregates announced from the ARIN address blocks: 5266 ARIN Region origin ASes present in the Internet Routing Table: 1228 ARIN Prefixes per ASN: 6.49 ARIN Region origin ASes announcing only one prefix: 434 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: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 187 Number of ARIN addresses announced to Internet: 95383808 Equivalent to 5 /8s, 175 /16s and 113 /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: 3255 Total RIPE prefixes after maximum aggregation: 2626 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3244 Unique aggregates announced from the RIPE address blocks: 2655 RIPE Region origin ASes present in the Internet Routing Table: 590 RIPE Prefixes per ASN: 5.50 RIPE Region origin ASes announcing only one prefix: 266 RIPE Region transit ASes present in the Internet Routing Table: 100 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 125 Number of RIPE addresses announced to Internet: 57252608 Equivalent to 3 /8s, 105 /16s and 155 /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: 1472 Total LACNIC prefixes after maximum aggregation: 564 LACNIC Deaggregation factor: 2.61 Prefixes being announced from the LACNIC address blocks: 1469 Unique aggregates announced from the LACNIC address blocks: 784 LACNIC Region origin ASes present in the Internet Routing Table: 160 LACNIC Prefixes per ASN: 9.18 LACNIC Region origin ASes announcing only one prefix: 60 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: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4016384 Equivalent to 0 /8s, 61 /16s and 73 /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: 953 Total AfriNIC prefixes after maximum aggregation: 178 AfriNIC Deaggregation factor: 5.35 Prefixes being announced from the AfriNIC address blocks: 952 Unique aggregates announced from the AfriNIC address blocks: 232 AfriNIC Region origin ASes present in the Internet Routing Table: 52 AfriNIC Prefixes per ASN: 18.31 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 3.9 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: 2671360 Equivalent to 0 /8s, 40 /16s and 195 /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 595 2154 465 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 1237 191 74 140 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 55824 118 18 11 NKN-CORE-NW NKN Core Network, IN 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T 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 668 210 620 178 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 2152 135 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, 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 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 786 185 1772 180 JANET Jisc Services Limited, GB 8895 137 24 5 ISU Internet Services Unit ISU, SA 559 112 533 104 SWITCH Peering requests: peering@switch 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 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/Janet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 221 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 103 24 47 Red Universitaria Nacional, CL 1251 59 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 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 383 319 72 TENET-1, ZA 36914 254 82 3 KENET-AS, KE 327687 57 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 35 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 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 595 2154 465 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 383 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 254 82 3 KENET-AS, KE 1916 221 208 43 Rede Nacional de Ensino e Pesquisa, BR 668 210 620 178 DNIC-AS-00668, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 4538 192 4192 73 ERX-CERNET-BKB China Education and Rese 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 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 383 311 TENET-1, ZA 36914 254 251 KENET-AS, KE 5786 198 197 UPRENET, PR 1916 221 178 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 137 132 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 4538 192 119 ERX-CERNET-BKB China Education and Research Net 55824 118 107 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/Janet/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 20965 GEANT The GEANT IP Service, NL 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/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 /14:35 /15:122 /16:2009 /17:413 /18:437 /19:555 /20:829 /21:832 /22:1441 /23:1484 /24:10065 /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 242 254 KENET-AS, KE 8895 132 137 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 37 59 LONI, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 31 54 SEAP-AGE, ES 25977 30 44 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 327700 30 35 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/Janet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:7 6:4 8:2 12:1 14:89 23:6 24:3 31:7 35:6 38:9 40:1 41:107 42:12 44:6 45:34 46:5 47:1 49:6 50:3 52:1 58:12 59:20 60:4 61:3 62:7 63:33 64:52 65:1 66:33 67:41 68:8 69:19 70:2 71:1 72:7 74:50 76:40 77:8 78:3 79:10 80:5 81:26 82:4 83:6 84:9 85:27 86:9 87:1 89:10 91:44 93:4 94:4 95:2 96:5 97:1 98:2 101:4 102:16 103:243 104:77 108:8 109:9 110:2 111:16 114:23 116:6 117:61 118:33 119:21 121:30 122:8 123:8 124:39 125:2 128:87 129:39 130:87 131:59 132:52 133:157 134:102 136:198 137:86 138:9 139:6 140:46 141:1 142:39 143:29 144:25 145:2 146:131 147:57 148:192 149:12 150:130 151:9 152:144 153:14 154:31 155:55 156:67 157:35 158:36 159:115 160:27 161:20 162:19 163:76 164:10 165:51 166:1 167:13 168:125 169:7 170:63 172:3 173:7 175:19 176:8 177:9 179:12 180:15 181:1 182:1 184:3 185:46 186:3 187:17 188:12 189:3 190:18 191:36 192:1446 193:292 194:120 195:69 196:169 197:162 198:480 199:276 200:312 201:38 202:626 203:427 204:350 205:128 206:183 207:168 208:67 209:115 210:189 211:17 212:167 213:2 214:8 216:86 217:9 218:3 219:12 220:16 222:6 223:14 End of report