IPv4 R&E Routing Table Report 20:15 GMT Fri 27 Jun, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 273375 Prefixes after maximum aggregation (per Origin AS): 119459 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 141631 Number of IPv4 prefixes with a valid ROA: 126017 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 147316 Total ASes present in the Internet Routing Table: 20706 Prefixes per ASN: 13.20 Origin-only ASes present in the Internet Routing Table: 17851 Origin ASes announcing only one prefix: 7996 Transit ASes present in the Internet Routing Table: 2855 Transit-only ASes present in the Internet Routing Table: 725 Paths with bogon ASNs present in the IPv4 Routing Table: 13 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 378 Number of instances of unregistered ASNs: 410 Number of 32-bit ASNs allocated by the RIRs: 46662 Number of 32-bit ASNs visible in the Routing Table: 8230 Prefixes from 32-bit ASNs in the Routing Table: 32680 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 109 Number of addresses announced to Internet: 1565719045 Equivalent to 93 /8s, 82 /16s and 250 /24s Percentage of available address space announced: 42.3 Percentage of allocated address space announced: 42.3 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: 87173 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33496 Total APNIC prefixes after maximum aggregation: 7474 APNIC Deaggregation factor: 4.48 Prefixes being announced from the APNIC address blocks: 31990 Unique aggregates announced from the APNIC address blocks: 7670 APNIC Region origin ASes present in the Internet Routing Table: 1206 APNIC Prefixes per ASN: 26.53 APNIC Region origin ASes announcing only one prefix: 469 APNIC Region transit ASes present in the Internet Routing Table: 192 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 570 Number of APNIC addresses announced to Internet: 165167724 Equivalent to 9 /8s, 216 /16s and 66 /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, 131072-155961 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: 125514 Total ARIN prefixes after maximum aggregation: 66247 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 123569 Unique aggregates announced from the ARIN address blocks: 67241 ARIN Region origin ASes present in the Internet Routing Table: 9324 ARIN Prefixes per ASN: 13.25 ARIN Region origin ASes announcing only one prefix: 3877 ARIN Region transit ASes present in the Internet Routing Table: 880 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2201 Number of ARIN addresses announced to Internet: 961688329 Equivalent to 57 /8s, 82 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 50348 Total RIPE prefixes after maximum aggregation: 27270 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52158 Unique aggregates announced from the RIPE address blocks: 38166 RIPE Region origin ASes present in the Internet Routing Table: 4687 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1962 RIPE Region transit ASes present in the Internet Routing Table: 701 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1941 Number of RIPE addresses announced to Internet: 286342480 Equivalent to 17 /8s, 17 /16s and 61 /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, 53/8, 57/8, 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: 53103 Total LACNIC prefixes after maximum aggregation: 15965 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 51550 Unique aggregates announced from the LACNIC address blocks: 23551 LACNIC Region origin ASes present in the Internet Routing Table: 4340 LACNIC Prefixes per ASN: 11.88 LACNIC Region origin ASes announcing only one prefix: 1578 LACNIC Region transit ASes present in the Internet Routing Table: 862 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3362 Number of LACNIC addresses announced to Internet: 106198848 Equivalent to 6 /8s, 84 /16s and 119 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 10536 Total AfriNIC prefixes after maximum aggregation: 2237 AfriNIC Deaggregation factor: 4.71 Prefixes being announced from the AfriNIC address blocks: 13999 Unique aggregates announced from the AfriNIC address blocks: 4895 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 48.11 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 19 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 156 Number of AfriNIC addresses announced to Internet: 46209792 Equivalent to 2 /8s, 193 /16s and 27 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 56046 2227 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1669 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 192 50 CMNET-HUNAN-AP China Mobile communication 24547 871 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 17561 594 38 229 LCS-AS-AP LARUS Limited, HK 45102 537 887 138 ALIBABA-CN-NET Alibaba US Technology Co., 24445 524 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13580 40953 5203 AMAZON-02, US 22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2830 215 1716 USDA-1, US 36352 2569 210 1136 AS-COLOCROSSING, US 367 2426 3162 1157 DNIC-ASBLK-00306-00371, US 6167 1913 3951 513 CELLCO-PART, US 11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US 7018 1861 22863 1394 ATT-INTERNET4, US 209 1658 4889 270 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1192 92 969 AKAMAI-ASN1, NL 3257 1042 2082 805 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 817 1301 129 SAUDINETSTC-AS, SA 8452 788 1841 16 TE-AS TE-AS, EG 34984 678 74 414 TELLCOM-AS, TR 212238 661 48 585 CDNEXT, GB 8376 575 53 24 Jordan Data Communications, JO 51167 568 113 251 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7148 1924 910 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1710 248 1230 Telmex Colombia S.A., CO 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 26615 1053 2487 55 TIM SA, BR 18881 878 1127 31 TELEFONICA BRASIL S.A, BR 11172 721 124 70 Alestra, S. de R.L. de C.V., MX 22884 657 42 415 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1447 389 16 LINKdotNET-AS, EG 24835 1061 475 106 RAYA-AS, EG 29571 1052 100 72 ORANGE-COTE-IVOIRE, CI 36935 617 520 50 Vodafone-, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 552 1192 125 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 37069 451 1046 15 MOBINIL, EG 2018 375 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13580 40953 5203 AMAZON-02, US 9808 11227 8759 113 CHINAMOBILE-CN China Mobile Communication 8151 7148 1924 910 UNINET, MX 22773 3348 3016 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 4155 2830 215 1716 USDA-1, US 36352 2569 210 1136 AS-COLOCROSSING, US 367 2426 3162 1157 DNIC-ASBLK-00306-00371, US 56046 2227 811 188 CMNET-JIANGSU-AP China Mobile communicati 11830 1987 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 11227 11114 CHINAMOBILE-CN China Mobile Communications Grou 8151 7148 6238 UNINET, MX 22773 3348 3184 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2227 2039 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1687 ATLANTICBB-JOHNSTOWN, US 56041 1669 1579 CMNET-ZHEJIANG-AP China Mobile communications c 36352 2569 1433 AS-COLOCROSSING, US 56047 1483 1433 CMNET-HUNAN-AP China Mobile communications corp Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 41.77.208.0/22 Origin: 37475 RESERVED, ZZ 41.77.208.0/22 Transit: 15964 CAMNET-AS, CM 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:30 /11:42 /12:150 /13:209 /14:576 /15:1100 /16:7598 /17:3469 /18:4252 /19:7687 /20:12719 /21:15579 /22:28303 /23:28830 /24:162582 /25:64 /26:81 /27:35 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3874 7148 UNINET, MX 22773 2502 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 13580 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1031 2569 AS-COLOCROSSING, US 19901 1012 1316 BRSPD-PUBLIC, US 10620 992 1710 Telmex Colombia S.A., CO 209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:18 2:452 3:816 4:5 5:802 6:148 7:5 8:657 11:171 12:967 13:385 14:114 15:308 16:247 17:4 18:889 20:188 21:4 22:188 23:2627 24:568 27:23 29:19 31:538 32:18 33:1 34:10 35:180 36:1979 37:854 38:2448 39:550 40:68 41:972 42:21 43:231 44:28 45:4233 46:987 47:96 49:21 50:360 51:387 52:1385 54:318 55:1104 56:11 57:22 58:16 59:38 60:32 61:84 62:551 63:748 64:1914 65:1097 66:1586 67:1072 68:374 69:1187 70:448 71:194 72:656 74:936 75:318 76:240 77:513 78:398 79:252 80:294 81:369 82:714 83:208 84:341 85:499 86:249 87:216 88:304 89:727 90:105 91:960 92:654 93:489 94:927 95:684 96:288 97:59 98:504 99:181 100:42 101:19 102:351 103:1269 104:1690 105:213 106:41 107:1561 108:555 109:445 110:40 111:1927 112:540 113:36 114:58 115:28 116:52 117:1051 118:66 119:84 120:1384 121:51 122:77 123:128 124:62 125:25 128:514 129:398 130:676 131:1027 132:569 133:213 134:461 135:128 136:605 137:511 138:956 139:425 140:709 141:362 142:1029 143:777 144:430 145:127 146:697 147:511 148:1009 149:788 150:205 151:767 152:625 153:142 154:1410 155:867 156:1199 157:401 158:552 159:746 160:830 161:646 162:1056 163:428 164:723 165:568 166:807 167:687 168:1483 169:161 170:1672 171:112 172:1350 173:806 174:362 175:78 176:780 177:1118 178:608 179:817 180:41 181:2098 182:27 183:1027 184:460 185:3657 186:2514 187:1755 188:847 189:1972 190:5311 191:480 192:5231 193:1914 194:1249 195:934 196:698 197:1157 198:2745 199:4978 200:4450 201:3682 202:944 203:722 204:2195 205:1786 206:1570 207:1571 208:1500 209:1982 210:331 211:443 212:1005 213:770 214:923 215:34 216:2582 217:447 218:546 219:19 220:34 221:406 222:24 223:945 End of report