IPv4 R&E Routing Table Report 17:15 GMT Sat 21 Oct, 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: 18090 Prefixes after maximum aggregation (per Origin AS): 10309 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 11374 Number of IPv4 prefixes with a valid ROA: 4912 Number of IPv4 prefixes with an invalid ROA: 2 Number of IPv4 prefixes with no ROA: 13176 Total ASes present in the Internet Routing Table: 2635 Prefixes per ASN: 6.87 Origin-only ASes present in the Internet Routing Table: 2281 Origin ASes announcing only one prefix: 1020 Transit ASes present in the Internet Routing Table: 354 Transit-only ASes present in the Internet Routing Table: 58 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 16 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 2 Number of instances of unregistered ASNs: 2 Number of 32-bit ASNs allocated by the RIRs: 42889 Number of 32-bit ASNs visible in the Routing Table: 613 Prefixes from 32-bit ASNs in the Routing Table: 1909 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: 3 Number of addresses announced to Internet: 205024768 Equivalent to 12 /8s, 56 /16s and 110 /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: 1716 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4634 Total APNIC prefixes after maximum aggregation: 2265 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4632 Unique aggregates announced from the APNIC address blocks: 2568 APNIC Region origin ASes present in the Internet Routing Table: 537 APNIC Prefixes per ASN: 8.63 APNIC Region origin ASes announcing only one prefix: 226 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 202 Number of APNIC addresses announced to Internet: 45577216 Equivalent to 2 /8s, 183 /16s and 116 /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, 131072-153913 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: 7832 Total ARIN prefixes after maximum aggregation: 4646 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 7848 Unique aggregates announced from the ARIN address blocks: 5144 ARIN Region origin ASes present in the Internet Routing Table: 1230 ARIN Prefixes per ASN: 6.38 ARIN Region origin ASes announcing only one prefix: 439 ARIN Region transit ASes present in the Internet Routing Table: 152 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: 189 Number of ARIN addresses announced to Internet: 95236864 Equivalent to 5 /8s, 173 /16s and 51 /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: 3280 Total RIPE prefixes after maximum aggregation: 2656 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3267 Unique aggregates announced from the RIPE address blocks: 2669 RIPE Region origin ASes present in the Internet Routing Table: 593 RIPE Prefixes per ASN: 5.51 RIPE Region origin ASes announcing only one prefix: 265 RIPE Region transit ASes present in the Internet Routing Table: 96 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 126 Number of RIPE addresses announced to Internet: 57337600 Equivalent to 3 /8s, 106 /16s and 231 /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 196608-216475 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: 1443 Total LACNIC prefixes after maximum aggregation: 571 LACNIC Deaggregation factor: 2.53 Prefixes being announced from the LACNIC address blocks: 1441 Unique aggregates announced from the LACNIC address blocks: 771 LACNIC Region origin ASes present in the Internet Routing Table: 167 LACNIC Prefixes per ASN: 8.63 LACNIC Region origin ASes announcing only one prefix: 64 LACNIC Region transit ASes present in the Internet Routing Table: 27 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: 71 Number of LACNIC addresses announced to Internet: 4153856 Equivalent to 0 /8s, 63 /16s and 98 /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: 899 Total AfriNIC prefixes after maximum aggregation: 169 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 899 Unique aggregates announced from the AfriNIC address blocks: 219 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.35 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2653184 Equivalent to 0 /8s, 40 /16s and 124 /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 592 2160 464 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 1237 193 74 142 KREONET-AS-KR KISTI, KR 4538 183 4193 75 ERX-CERNET-BKB China Education and Rese 58647 177 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 120 AARNET-AS-AP Australian Academic and Re 55824 126 18 16 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 63 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 668 203 636 172 DNIC-AS-00668, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 2152 143 507 92 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 127 521 30 NCREN, US 270 118 329 82 AS270, US 23024 113 7 17 OCDE, US 2920 101 34 7 LACOE, US 21976 82 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 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 786 184 1764 179 JANET Jisc Services Limited, GB 8895 137 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 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 213 176 42 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 48 Red Universitaria Nacional, CL 271640 72 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 50 17 3 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 43 99 33 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 34 4 3 Universidad Autonoma Metropolitana, MX 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 71 TENET-1, ZA 327687 169 28 3 RENU, UG 36914 82 82 3 KENET-AS, KE 8094 48 48 15 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 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 592 2160 464 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 383 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 1916 213 176 42 Rede Nacional de Ensino e Pesquisa, BR 668 203 636 172 DNIC-AS-00668, US 376 202 178 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 1237 193 74 142 KREONET-AS-KR KISTI, KR 786 184 1764 179 JANET Jisc Services Limited, GB 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 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 383 312 TENET-1, ZA 5786 197 196 UPRENET, PR 58647 177 175 KAGAWAU-AS Kagawa University, JP 1916 213 171 Rede Nacional de Ensino e Pesquisa, BR 327687 169 166 RENU, UG 18558 141 137 NETBLK-RCOEK, US 8895 137 132 ISU Internet Services Unit ISU, SA 55824 126 110 NKN-CORE-NW NKN Core Network, IN 4538 183 108 ERX-CERNET-BKB China Education and Research Net 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 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 134.208.0.0/16 Origin: 17711 NDHU-TW National Dong Hwa University, TW 134.208.0.0/16 Transit: 7539 TWAREN-TW National Center for High-perfo 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /16:2008 /17:426 /18:435 /19:551 /20:820 /21:828 /22:1443 /23:1481 /24:9908 /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 8895 132 137 ISU Internet Services Unit ISU, SA 36914 74 82 KENET-AS, KE 23024 52 113 OCDE, US 32440 38 61 LONI, US 327700 38 42 MoRENet, MZ 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 55 SEAP-AGE, ES 25977 30 44 HCCS, US 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) ---------------------------------------------- 1:2 5:7 6:4 8:2 12:1 14:89 23:5 24:3 31:7 35:2 38:8 40:1 41:119 42:13 44:7 45:38 46:5 47:1 49:9 50:1 52:1 58:11 59:20 60:5 61:3 62:7 63:32 64:51 65:1 66:39 67:41 68:9 69:17 70:2 71:1 72:7 74:49 76:41 77:8 78:3 79:10 80:5 81:27 82:4 83:6 84:9 85:28 86:3 87:1 89:10 91:44 93:4 94:4 95:2 96:5 97:1 98:2 101:5 102:30 103:268 104:76 108:8 109:9 111:16 114:23 116:6 117:61 118:33 119:18 121:28 122:8 123:8 124:40 125:2 128:88 129:43 130:86 131:60 132:64 133:152 134:108 136:196 137:130 138:9 139:5 140:40 141:1 142:38 143:22 144:25 145:2 146:131 147:55 148:192 149:12 150:44 151:11 152:132 153:14 154:30 155:63 156:65 157:18 158:35 159:115 160:30 161:18 162:20 163:80 164:13 165:47 166:1 167:13 168:124 169:8 170:68 172:3 173:7 175:18 176:8 177:6 179:12 180:15 181:1 182:1 184:3 185:45 186:3 187:17 188:12 189:3 190:19 191:13 192:1465 193:281 194:120 195:69 196:204 197:3 198:476 199:274 200:332 201:38 202:628 203:425 204:354 205:128 206:192 207:152 208:71 209:112 210:192 211:14 212:163 213:2 214:8 216:84 217:9 218:3 219:6 220:16 222:3 223:14 End of report