IPv4 R&E Routing Table Report 17:00 GMT Tue 03 Jan, 2023 IPv4 BGP Table (R&E) as seen at GEANT. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/GEANT/ Analysis Summary ---------------- BGP routing table entries examined: 18956 Prefixes after maximum aggregation (per Origin AS): 10750 Deaggregation factor: 1.76 Unique aggregates announced (without unneeded subnets): 11950 Number of IPv4 prefixes with a valid ROA: 4449 Number of IPv4 prefixes with an invalid ROA: 70 Number of IPv4 prefixes with no ROA: 14437 Total ASes present in the Internet Routing Table: 2789 Prefixes per ASN: 6.80 Origin-only ASes present in the Internet Routing Table: 2420 Origin ASes announcing only one prefix: 1067 Transit ASes present in the Internet Routing Table: 369 Transit-only ASes present in the Internet Routing Table: 59 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.7 Max AS path length visible: 19 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 41005 Number of 32-bit ASNs visible in the Routing Table: 646 Prefixes from 32-bit ASNs in the Routing Table: 1833 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: 1 Number of addresses announced to Internet: 207074886 Equivalent to 12 /8s, 87 /16s and 182 /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: 2221 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4778 Total APNIC prefixes after maximum aggregation: 2306 APNIC Deaggregation factor: 2.07 Prefixes being announced from the APNIC address blocks: 4779 Unique aggregates announced from the APNIC address blocks: 2635 APNIC Region origin ASes present in the Internet Routing Table: 584 APNIC Prefixes per ASN: 8.18 APNIC Region origin ASes announcing only one prefix: 250 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 228 Number of APNIC addresses announced to Internet: 45972288 Equivalent to 2 /8s, 189 /16s and 123 /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: 8060 Total ARIN prefixes after maximum aggregation: 4744 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 8076 Unique aggregates announced from the ARIN address blocks: 5304 ARIN Region origin ASes present in the Internet Routing Table: 1233 ARIN Prefixes per ASN: 6.55 ARIN Region origin ASes announcing only one prefix: 427 ARIN Region transit ASes present in the Internet Routing Table: 154 Average ARIN Region AS path length visible: 4.2 Max ARIN Region AS path length visible: 19 Number of ARIN region 32-bit ASNs visible in the Routing Table: 183 Number of ARIN addresses announced to Internet: 96157440 Equivalent to 5 /8s, 187 /16s and 63 /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: 3684 Total RIPE prefixes after maximum aggregation: 2902 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3680 Unique aggregates announced from the RIPE address blocks: 2929 RIPE Region origin ASes present in the Internet Routing Table: 696 RIPE Prefixes per ASN: 5.29 RIPE Region origin ASes announcing only one prefix: 308 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 2.9 Max RIPE Region AS path length visible: 11 Number of RIPE region 32-bit ASNs visible in the Routing Table: 141 Number of RIPE addresses announced to Internet: 58040646 Equivalent to 3 /8s, 117 /16s and 161 /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: 1443 Total LACNIC prefixes after maximum aggregation: 589 LACNIC Deaggregation factor: 2.45 Prefixes being announced from the LACNIC address blocks: 1440 Unique aggregates announced from the LACNIC address blocks: 794 LACNIC Region origin ASes present in the Internet Routing Table: 160 LACNIC Prefixes per ASN: 9.00 LACNIC Region origin ASes announcing only one prefix: 59 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 4.8 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4220864 Equivalent to 0 /8s, 64 /16s and 103 /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: 980 Total AfriNIC prefixes after maximum aggregation: 200 AfriNIC Deaggregation factor: 4.90 Prefixes being announced from the AfriNIC address blocks: 980 Unique aggregates announced from the AfriNIC address blocks: 287 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 19.22 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: 2.9 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2683392 Equivalent to 0 /8s, 40 /16s and 242 /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 589 2157 463 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 189 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 118 AARNET-AS-AP Australian Academic and Re 55824 115 18 12 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/GEANT/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 219 702 180 DNIC-AS-00668, US 376 200 178 149 RISQ-AS, CA 5786 193 16 1 UPRENET, PR 2152 151 507 90 CSUNET-NW, US 18558 133 18 4 NETBLK-RCOEK, US 270 120 329 85 AS270, US 23024 113 7 17 OCDE, US 2920 109 34 7 LACOE, US 32440 92 18 16 LONI, US 32531 90 6 60 FORDHAM-UNIVERSITY, US Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 284 1935 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 176 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 96 1518 85 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 64 599 59 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 177 208 44 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 58 102 38 Fundacao Carlos Chagas Filho de Amparo 61468 46 3 15 CEDIA, EC 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 359 319 67 TENET-1, ZA 36914 239 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 41 28 3 RENU, UG 3208 32 2 1 ARN, DZ 37182 31 8 1 TERNET, TZ 327700 27 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 589 2157 463 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 2018 359 319 67 TENET-1, ZA 680 284 1935 249 DFN Verein zur Foerderung eines Deutsch 36914 239 82 3 KENET-AS, KE 668 219 702 180 DNIC-AS-00668, US 376 200 178 149 RISQ-AS, CA 5786 193 16 1 UPRENET, PR 4538 191 4192 73 ERX-CERNET-BKB China Education and Rese 1237 189 74 134 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/GEANT/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 434 410 CSTNET-AS-AP Computer Network Information Cente 2018 359 292 TENET-1, ZA 36914 239 236 KENET-AS, KE 5786 193 192 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 8895 176 172 ISU Internet Services Unit ISU, SA 1916 177 133 Rede Nacional de Ensino e Pesquisa, BR 18558 133 129 NETBLK-RCOEK, US 4538 191 118 ERX-CERNET-BKB China Education and Research Net 55824 115 103 NKN-CORE-NW NKN Core Network, IN Complete listing at https://bgp.nsrc.org/REN/GEANT/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 30797 UNALLOCATED 84.237.71.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.96.0/23 5387 NSC, RU 30797 UNALLOCATED 84.237.98.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.99.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.100.0/24 5387 NSC, RU 30797 UNALLOCATED 84.237.120.0/23 5387 NSC, RU 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 Complete listing at https://bgp.nsrc.org/REN/GEANT/data-badAS 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 Complete listing at https://bgp.nsrc.org/REN/GEANT/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 /16:2028 /17:422 /18:448 /19:566 /20:866 /21:888 /22:1480 /23:1577 /24:10244 /25:86 /26:57 /27:83 /28:0 /29:0 /30:0 /31:1 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 226 239 KENET-AS, KE 8895 171 176 ISU Internet Services Unit ISU, SA 32440 77 92 LONI, US 23024 52 113 OCDE, US 46115 32 35 LUTHER, US 200521 31 54 SEAP-AGE, ES 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 37182 30 31 TERNET, TZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/GEANT/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:1 14:85 18:43 23:6 24:3 31:7 35:4 38:9 40:1 41:138 42:15 44:5 45:36 46:5 47:1 49:10 50:1 52:1 58:12 59:21 60:4 61:3 62:14 63:33 64:51 65:1 66:32 67:42 68:8 69:21 70:2 71:1 72:7 74:50 76:37 77:9 78:3 79:10 80:18 81:28 82:7 83:6 84:22 85:42 86:8 87:1 89:10 91:49 92:1 93:4 94:4 95:4 96:5 97:2 98:2 101:8 102:11 103:321 104:72 108:8 109:10 110:2 111:16 114:23 116:6 117:61 118:33 119:22 121:28 122:8 123:8 124:39 125:4 128:86 129:40 130:88 131:63 132:61 133:149 134:100 136:193 137:75 138:9 139:6 140:57 141:1 142:39 143:30 144:25 145:2 146:130 147:59 148:192 149:12 150:130 151:7 152:77 153:14 154:29 155:52 156:68 157:34 158:38 159:116 160:26 161:19 162:20 163:78 164:10 165:51 166:1 167:16 168:117 169:10 170:56 172:2 173:7 175:31 176:8 177:10 179:10 180:17 181:1 182:1 184:3 185:48 186:3 187:19 188:13 189:3 190:18 191:36 192:1455 193:346 194:147 195:91 196:156 197:142 198:483 199:284 200:229 201:37 202:633 203:424 204:346 205:129 206:186 207:164 208:66 209:115 210:185 211:14 212:168 213:5 214:8 216:87 217:12 218:22 219:12 220:17 222:6 223:11 End of report