Global R&E Routing Table Report 19:10 GMT Mon 27 Dec, 2021 BGP Table (R&E) as seen at PERN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PERN/ Analysis Summary ---------------- BGP routing table entries examined: 16585 Prefixes after maximum aggregation (per Origin AS): 9811 Deaggregation factor: 1.69 Unique aggregates announced (without unneeded subnets): 11033 Total ASes present in the Internet Routing Table: 2563 Prefixes per ASN: 6.47 Origin-only ASes present in the Internet Routing Table: 2209 Origin ASes announcing only one prefix: 1035 Transit ASes present in the Internet Routing Table: 354 Transit-only ASes present in the Internet Routing Table: 50 Average AS path length visible in the Internet Routing Table: 6.0 Max AS path length visible: 16 Max AS path prepend of ASN ( 10497) 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: 38184 Number of 32-bit ASNs visible in the Routing Table: 578 Prefixes from 32-bit ASNs in the Routing Table: 1564 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: 0 Number of addresses announced to Internet: 182915072 Equivalent to 10 /8s, 231 /16s and 16 /24s Percentage of available address space announced: 4.9 Percentage of allocated address space announced: 4.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 1736 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3833 Total APNIC prefixes after maximum aggregation: 2019 APNIC Deaggregation factor: 1.90 Prefixes being announced from the APNIC address blocks: 3835 Unique aggregates announced from the APNIC address blocks: 2447 APNIC Region origin ASes present in the Internet Routing Table: 499 APNIC Prefixes per ASN: 7.69 APNIC Region origin ASes announcing only one prefix: 227 APNIC Region transit ASes present in the Internet Routing Table: 54 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 193 Number of APNIC addresses announced to Internet: 28358144 Equivalent to 1 /8s, 176 /16s and 182 /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: 7094 Total ARIN prefixes after maximum aggregation: 4244 ARIN Deaggregation factor: 1.67 Prefixes being announced from the ARIN address blocks: 7103 Unique aggregates announced from the ARIN address blocks: 4705 ARIN Region origin ASes present in the Internet Routing Table: 1116 ARIN Prefixes per ASN: 6.36 ARIN Region origin ASes announcing only one prefix: 395 ARIN Region transit ASes present in the Internet Routing Table: 147 Average ARIN Region AS path length visible: 5.9 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 149 Number of ARIN addresses announced to Internet: 89563904 Equivalent to 5 /8s, 86 /16s and 163 /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: 3385 Total RIPE prefixes after maximum aggregation: 2763 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3375 Unique aggregates announced from the RIPE address blocks: 2771 RIPE Region origin ASes present in the Internet Routing Table: 669 RIPE Prefixes per ASN: 5.04 RIPE Region origin ASes announcing only one prefix: 321 RIPE Region transit ASes present in the Internet Routing Table: 103 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 16 Number of RIPE region 32-bit ASNs visible in the Routing Table: 134 Number of RIPE addresses announced to Internet: 58201344 Equivalent to 3 /8s, 120 /16s and 21 /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: 1448 Total LACNIC prefixes after maximum aggregation: 588 LACNIC Deaggregation factor: 2.46 Prefixes being announced from the LACNIC address blocks: 1449 Unique aggregates announced from the LACNIC address blocks: 805 LACNIC Region origin ASes present in the Internet Routing Table: 174 LACNIC Prefixes per ASN: 8.33 LACNIC Region origin ASes announcing only one prefix: 69 LACNIC Region transit ASes present in the Internet Routing Table: 25 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 75 Number of LACNIC addresses announced to Internet: 4051968 Equivalent to 0 /8s, 61 /16s and 212 /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: 823 Total AfriNIC prefixes after maximum aggregation: 195 AfriNIC Deaggregation factor: 4.22 Prefixes being announced from the AfriNIC address blocks: 823 Unique aggregates announced from the AfriNIC address blocks: 305 AfriNIC Region origin ASes present in the Internet Routing Table: 53 AfriNIC Prefixes per ASN: 15.53 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: 5.7 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2739712 Equivalent to 0 /8s, 41 /16s and 206 /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 609 2156 454 SINET-AS Research Organization of Infor 7497 431 182 24 CSTNET-AS-AP Computer Network Informati 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 175 330 123 AARNET-AS-AP Australian Academic and Re 58647 165 18 2 KAGAWAU-AS Kagawa University, JP 55824 129 19 23 NKN-CORE-NW NKN Core Network, IN 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 1659 54 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 2697 53 3 32 ERX-ERNET-AS Education and Research Net 9317 49 16 1 ITISNET-AS INHA UNIVERSITY, KR Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 2152 148 507 87 CSUNET-NW, US 18558 135 18 4 NETBLK-RCOEK, US 2920 108 34 6 LACOE, US 21976 85 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 3 76 496 15 MIT-GATEWAYS, US 3477 72 71 42 NOAA-NWAVE, US Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 142 24 4 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 97 1520 84 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 553 72 449 72 BELWUE BelWue-Koordination, DE 2200 67 647 61 FR-RENATER Reseau National de telecommu 2614 58 33 56 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 176 207 41 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 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 4270 43 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 350 319 74 TENET-1, ZA 36914 129 81 6 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 50 48 4 PUKNET, ZA 327687 37 28 3 RENU, UG 327700 33 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37182 13 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 609 2156 454 SINET-AS Research Organization of Infor 7497 431 182 24 CSTNET-AS-AP Computer Network Informati 2018 350 319 74 TENET-1, ZA 680 279 1950 245 DFN Verein zur Foerderung eines Deutsch 668 212 702 180 DNIC-AS-00668, US 376 203 178 152 RISQ-AS, CA 5786 200 16 1 UPRENET, PR 786 186 1774 183 JANET Jisc Services Limited, GB 1237 185 74 135 KREONET-AS-KR KISTI, KR 1916 176 207 41 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/PERN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 431 407 CSTNET-AS-AP Computer Network Information Cente 2018 350 276 TENET-1, ZA 5786 200 199 UPRENET, PR 58647 165 163 KAGAWAU-AS Kagawa University, JP 8895 142 138 ISU Internet Services Unit ISU, SA 1916 176 135 Rede Nacional de Ensino e Pesquisa, BR 18558 135 131 NETBLK-RCOEK, US 36914 129 123 KENET-AS, KE 55824 129 106 NKN-CORE-NW NKN Core Network, IN 2920 108 102 LACOE, US Complete listing at https://bgp.nsrc.org/REN/PERN/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 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/PERN/data-badAS 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 /12:4 /13:6 /14:19 /15:77 /16:1874 /17:377 /18:420 /19:505 /20:781 /21:834 /22:1330 /23:1418 /24:8936 /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 137 142 ISU Internet Services Unit ISU, SA 36914 121 129 KENET-AS, KE 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 27609 29 45 USC-UNIVERSITY-HOSPITAL, US 32440 29 44 LONI, US 200521 29 48 SEAP-AGE, ES 327700 29 33 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/PERN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 6:4 8:2 12:1 14:84 18:42 23:7 24:3 31:6 37:6 38:9 41:55 42:3 44:5 45:42 46:6 47:1 49:8 50:1 52:1 59:3 60:4 61:3 62:7 63:34 64:27 66:34 67:43 68:8 69:20 72:12 74:19 76:33 77:7 78:3 79:10 80:17 81:27 82:5 83:7 84:5 85:33 86:4 87:1 88:1 89:10 91:47 92:1 93:19 94:4 95:5 96:5 97:1 98:2 101:6 102:14 103:280 104:14 106:1 107:1 108:5 109:10 110:3 111:16 112:4 114:23 116:5 117:61 119:21 121:17 123:8 124:39 125:3 128:86 129:36 130:93 131:77 132:55 133:139 134:105 136:192 137:66 138:8 139:5 140:50 141:2 142:40 143:35 144:25 145:2 146:124 147:33 148:159 149:13 150:36 151:6 152:71 153:11 154:26 155:51 156:67 157:26 158:42 159:117 160:25 161:17 162:19 163:66 164:46 165:54 166:1 167:16 168:147 169:9 170:50 171:1 172:2 173:1 175:31 176:8 177:13 178:1 179:11 180:20 181:2 182:5 184:4 185:38 186:3 187:18 188:13 189:3 190:46 191:36 192:1268 193:253 194:135 195:92 196:148 197:111 198:415 199:259 200:255 201:39 202:374 203:307 204:312 205:163 206:177 207:168 208:55 209:104 210:179 211:14 212:171 213:4 214:7 216:56 217:14 218:25 219:8 220:17 222:2 223:3 End of report