IPv4 R&E Routing Table Report 22:10 GMT Tue 20 Jun, 2023 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 25325 Prefixes after maximum aggregation (per Origin AS): 12422 Deaggregation factor: 2.04 Unique aggregates announced (without unneeded subnets): 14081 Number of IPv4 prefixes with a valid ROA: 11268 Number of IPv4 prefixes with an invalid ROA: 190 Number of IPv4 prefixes with no ROA: 13867 Total ASes present in the Internet Routing Table: 2728 Prefixes per ASN: 9.28 Origin-only ASes present in the Internet Routing Table: 2343 Origin ASes announcing only one prefix: 1031 Transit ASes present in the Internet Routing Table: 385 Transit-only ASes present in the Internet Routing Table: 74 Paths with bogon ASNs present in the IPv4 Routing Table: 1 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: 8 Number of instances of unregistered ASNs: 8 Number of 32-bit ASNs allocated by the RIRs: 42089 Number of 32-bit ASNs visible in the Routing Table: 623 Prefixes from 32-bit ASNs in the Routing Table: 4617 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: 7 Number of addresses announced to Internet: 243165220 Equivalent to 14 /8s, 126 /16s and 104 /24s Percentage of available address space announced: 6.6 Percentage of allocated address space announced: 6.6 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: 3420 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4599 Total APNIC prefixes after maximum aggregation: 2238 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4643 Unique aggregates announced from the APNIC address blocks: 2588 APNIC Region origin ASes present in the Internet Routing Table: 533 APNIC Prefixes per ASN: 8.71 APNIC Region origin ASes announcing only one prefix: 225 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 201 Number of APNIC addresses announced to Internet: 45732672 Equivalent to 2 /8s, 185 /16s and 211 /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: 14350 Total ARIN prefixes after maximum aggregation: 6441 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14144 Unique aggregates announced from the ARIN address blocks: 7256 ARIN Region origin ASes present in the Internet Routing Table: 1223 ARIN Prefixes per ASN: 11.57 ARIN Region origin ASes announcing only one prefix: 421 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 190 Number of ARIN addresses announced to Internet: 132581537 Equivalent to 7 /8s, 231 /16s and 8 /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: 3642 Total RIPE prefixes after maximum aggregation: 2873 RIPE Deaggregation factor: 1.27 Prefixes being announced from the RIPE address blocks: 3801 Unique aggregates announced from the RIPE address blocks: 3108 RIPE Region origin ASes present in the Internet Routing Table: 681 RIPE Prefixes per ASN: 5.58 RIPE Region origin ASes announcing only one prefix: 301 RIPE Region transit ASes present in the Internet Routing Table: 107 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 142 Number of RIPE addresses announced to Internet: 57944064 Equivalent to 3 /8s, 116 /16s and 40 /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: 1633 Total LACNIC prefixes after maximum aggregation: 689 LACNIC Deaggregation factor: 2.37 Prefixes being announced from the LACNIC address blocks: 1638 Unique aggregates announced from the LACNIC address blocks: 897 LACNIC Region origin ASes present in the Internet Routing Table: 161 LACNIC Prefixes per ASN: 10.17 LACNIC Region origin ASes announcing only one prefix: 58 LACNIC Region transit ASes present in the Internet Routing Table: 27 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4232003 Equivalent to 0 /8s, 64 /16s and 147 /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: 1093 Total AfriNIC prefixes after maximum aggregation: 173 AfriNIC Deaggregation factor: 6.32 Prefixes being announced from the AfriNIC address blocks: 1092 Unique aggregates announced from the AfriNIC address blocks: 225 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 21.41 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: 4.5 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2669056 Equivalent to 0 /8s, 40 /16s and 186 /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 607 2154 466 SINET-AS Research Organization of Infor 7497 436 182 24 CSTNET-AS-AP Computer Network Informati 1237 193 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 177 329 121 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2663 3593 377 GOOGLE-CLOUD-PLATFORM, US 16509 2112 1681 828 AMAZON-02, US 15169 823 2253 62 GOOGLE, US 14618 787 4015 585 AMAZON-AES, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 142 507 93 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 81 128 521 31 NCREN, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 178 24 5 ISU Internet Services Unit ISU, SA 559 112 533 104 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/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 260 208 44 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 125 0 95 Telconet S.A, EC 11340 114 25 51 Red Universitaria Nacional, CL 1251 60 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 46 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 381 319 72 TENET-1, ZA 36914 255 82 3 KENET-AS, KE 327687 164 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 41 16 1 MoRENet, MZ 37215 37 8 1 MAREN, MW 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 Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2663 3593 377 GOOGLE-CLOUD-PLATFORM, US 16509 2112 1681 828 AMAZON-02, US 15169 823 2253 62 GOOGLE, US 14618 787 4015 585 AMAZON-AES, US 2907 607 2154 466 SINET-AS Research Organization of Infor 7497 436 182 24 CSTNET-AS-AP Computer Network Informati 2018 381 319 72 TENET-1, ZA 680 284 1919 250 DFN Verein zur Foerderung eines Deutsch 1916 260 208 44 Rede Nacional de Ensino e Pesquisa, BR 36914 255 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2112 1284 AMAZON-02, US 15169 823 761 GOOGLE, US 7497 436 412 CSTNET-AS-AP Computer Network Information Cente 2018 381 309 TENET-1, ZA 36914 255 252 KENET-AS, KE 1916 260 216 Rede Nacional de Ensino e Pesquisa, BR 14618 787 202 AMAZON-AES, US 5786 198 197 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 8895 178 173 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 29867 UNALLOCATED 64.202.80.0/20 22742 CT-EDU-NET, US 138933 UNALLOCATED 103.137.86.0/24 24490 TEIN2-SG-AP Trans-Eurasia In 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 29867 UNALLOCATED 192.160.243.0/24 22742 CT-EDU-NET, US 29867 UNALLOCATED 192.160.244.0/24 22742 CT-EDU-NET, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 64.202.80.0/20 Origin: 29867 UNASSIGNED 64.202.80.0/20 Transit: 22742 CT-EDU-NET, US 76.76.19.0/24 Origin: 16509 AMAZON-02, US 76.76.19.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 27750 Cooperacion Latino Americana de Redes Av 103.137.86.0/24 Origin: 138933 UNASSIGNED 103.137.86.0/24 Transit: 24490 TEIN2-SG-AP Trans-Eurasia Information Ne 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/CEDIA/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 /11:4 /12:20 /13:34 /14:81 /15:161 /16:2082 /17:496 /18:478 /19:721 /20:2772 /21:1029 /22:1634 /23:1720 /24:13636 /25:95 /26:75 /27:91 /28:22 /29:87 /30:41 /31:34 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 286 2112 AMAZON-02, US 15169 273 823 GOOGLE, US 14618 256 787 AMAZON-AES, US 36914 243 255 KENET-AS, KE 396982 194 2663 GOOGLE-CLOUD-PLATFORM, US 8895 173 178 ISU Internet Services Unit ISU, SA 27947 98 125 Telconet S.A, EC 32440 79 108 LONI, US 23024 52 113 OCDE, US 1916 39 260 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:75 5:18 8:28 12:1 13:45 14:89 15:69 16:108 18:54 23:113 24:3 31:10 34:18 35:47 38:9 40:1 41:144 42:10 44:8 45:50 46:11 47:1 49:6 50:2 52:558 54:228 58:1 59:19 60:4 61:3 62:12 63:36 64:168 65:13 66:66 67:60 68:10 69:35 70:43 71:3 72:13 74:143 76:46 77:11 78:3 79:10 80:13 81:26 82:7 83:6 84:10 85:44 86:10 87:2 88:1 89:18 91:56 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:31 103:259 104:210 107:33 108:101 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:38 125:4 128:87 129:46 130:143 131:57 132:64 133:155 134:102 135:4 136:295 137:147 138:13 139:18 140:36 141:4 142:272 143:21 144:39 145:2 146:143 147:65 148:201 149:16 150:130 151:14 152:146 153:14 154:31 155:74 156:69 157:29 158:41 159:148 160:27 161:34 162:86 163:81 164:20 165:55 166:1 167:21 168:159 169:12 170:110 171:1 172:114 173:112 174:2 175:19 176:11 177:5 178:1 179:9 180:15 182:1 184:4 185:100 186:3 187:18 188:19 189:3 190:5 191:36 192:1468 193:306 194:127 195:87 196:202 197:162 198:486 199:305 200:297 201:36 202:632 203:431 204:367 205:149 206:200 207:189 208:128 209:168 210:184 211:3 212:172 213:15 216:167 217:11 218:22 219:6 220:16 222:4 223:4 End of report