IPv4 R&E Routing Table Report 20:15 GMT Thu 11 Sep, 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: 278123 Prefixes after maximum aggregation (per Origin AS): 118467 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141336 Number of IPv4 prefixes with a valid ROA: 130731 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 147352 Total ASes present in the Internet Routing Table: 20306 Prefixes per ASN: 13.70 Origin-only ASes present in the Internet Routing Table: 17525 Origin ASes announcing only one prefix: 7784 Transit ASes present in the Internet Routing Table: 2781 Transit-only ASes present in the Internet Routing Table: 683 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 358 Number of instances of unregistered ASNs: 387 Number of 32-bit ASNs allocated by the RIRs: 47369 Number of 32-bit ASNs visible in the Routing Table: 8042 Prefixes from 32-bit ASNs in the Routing Table: 33228 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 92 Number of addresses announced to Internet: 1616480741 Equivalent to 96 /8s, 89 /16s and 137 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 88163 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36585 Total APNIC prefixes after maximum aggregation: 7694 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 35429 Unique aggregates announced from the APNIC address blocks: 7717 APNIC Region origin ASes present in the Internet Routing Table: 1158 APNIC Prefixes per ASN: 30.59 APNIC Region origin ASes announcing only one prefix: 448 APNIC Region transit ASes present in the Internet Routing Table: 191 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 526 Number of APNIC addresses announced to Internet: 162000748 Equivalent to 9 /8s, 167 /16s and 239 /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: 126330 Total ARIN prefixes after maximum aggregation: 66022 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123774 Unique aggregates announced from the ARIN address blocks: 67418 ARIN Region origin ASes present in the Internet Routing Table: 9183 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3816 ARIN Region transit ASes present in the Internet Routing Table: 856 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2165 Number of ARIN addresses announced to Internet: 1021990121 Equivalent to 60 /8s, 234 /16s and 84 /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: 47850 Total RIPE prefixes after maximum aggregation: 25714 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50213 Unique aggregates announced from the RIPE address blocks: 36792 RIPE Region origin ASes present in the Internet Routing Table: 4451 RIPE Prefixes per ASN: 11.28 RIPE Region origin ASes announcing only one prefix: 1867 RIPE Region transit ASes present in the Internet Routing Table: 670 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1832 Number of RIPE addresses announced to Internet: 277503056 Equivalent to 16 /8s, 138 /16s and 92 /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: 56347 Total LACNIC prefixes after maximum aggregation: 16396 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54454 Unique aggregates announced from the LACNIC address blocks: 24475 LACNIC Region origin ASes present in the Internet Routing Table: 4392 LACNIC Prefixes per ASN: 12.40 LACNIC Region origin ASes announcing only one prefix: 1545 LACNIC Region transit ASes present in the Internet Routing Table: 864 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3360 Number of LACNIC addresses announced to Internet: 108325184 Equivalent to 6 /8s, 116 /16s and 233 /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: 10653 Total AfriNIC prefixes after maximum aggregation: 2375 AfriNIC Deaggregation factor: 4.49 Prefixes being announced from the AfriNIC address blocks: 14161 Unique aggregates announced from the AfriNIC address blocks: 4843 AfriNIC Region origin ASes present in the Internet Routing Table: 300 AfriNIC Prefixes per ASN: 47.20 AfriNIC Region origin ASes announcing only one prefix: 108 AfriNIC Region transit ASes present in the Internet Routing Table: 71 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 159 Number of AfriNIC addresses announced to Internet: 46551552 Equivalent to 2 /8s, 198 /16s and 82 /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 13075 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2951 811 191 CMNET-JIANGSU-AP China Mobile communicati 56041 1711 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1704 192 50 CMNET-HUNAN-AP China Mobile communication 24444 868 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 2907 610 2169 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 7545 585 77 426 TPG-INTERNET-AP TPG Telecom Limited, AU 24445 562 497 68 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 14374 40863 5378 AMAZON-02, US 22773 3953 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2998 233 1740 USDA-1, US 36352 2516 207 1170 AS-COLOCROSSING, US 367 2297 2600 1127 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, 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 1227 96 997 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 808 1301 130 SAUDINETSTC-AS, SA 8452 775 1841 16 TE-AS TE-AS, EG 34984 719 120 547 TELLCOM-AS, TR 212238 691 50 615 CDNEXT, GB 8376 591 53 26 Jordan Data Communications, JO 35819 575 573 76 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 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 7298 1964 784 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1680 240 1218 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1177 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2487 55 TIM SA, BR 18881 893 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 27651 651 92 45 ENTEL CHILE S.A., CL 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 24835 1324 572 23 RAYA-AS, EG 24863 997 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 646 522 42 Vodafone-, EG 36914 579 82 3 KENET-AS, KE 20011 576 154 212 NTT-DATA-Inc, ZA 29571 522 98 71 ORANGE-COTE-IVOIRE, CI 36992 476 1085 219 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 2018 374 318 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 14374 40863 5378 AMAZON-02, US 9808 13075 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7298 1964 784 UNINET, MX 22773 3953 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3219 54766 2470 DNIC-AS-00749, US 4155 2998 233 1740 USDA-1, US 56046 2951 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2516 207 1170 AS-COLOCROSSING, US 367 2297 2600 1127 DNIC-ASBLK-00306-00371, US 11830 1989 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 13075 12961 CHINAMOBILE-CN China Mobile Communications Grou 8151 7298 6514 UNINET, MX 22773 3953 3639 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2951 2760 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1704 1654 CMNET-HUNAN-AP China Mobile communications corp 56041 1711 1633 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1934 1414 CELLCO-PART, US 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 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 /8:14 /9:11 /10:30 /11:51 /12:156 /13:214 /14:585 /15:1108 /16:7568 /17:3416 /18:4088 /19:7591 /20:13086 /21:15821 /22:28218 /23:29156 /24:166767 /25:66 /26:83 /27:50 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3950 7298 UNINET, MX 22773 2503 3953 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2438 14374 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1033 1389 BRIGHTSPEED, US 36352 999 2516 AS-COLOCROSSING, US 10620 990 1680 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:465 3:931 4:5 5:758 6:146 7:5 8:641 9:3 11:171 12:891 13:500 14:173 15:340 16:264 17:3 18:898 20:192 21:4 22:188 23:2548 24:681 27:55 29:19 31:485 32:12 34:10 35:180 36:3107 37:771 38:2408 39:669 40:93 41:998 42:21 43:204 44:29 45:4324 46:977 47:118 49:20 50:470 51:383 52:1435 54:364 55:1112 56:11 57:22 58:17 59:36 60:90 61:60 62:520 63:767 64:1927 65:1098 66:1579 67:1068 68:360 69:1196 70:446 71:182 72:696 74:956 75:311 76:248 77:430 78:319 79:233 80:319 81:368 82:732 83:208 84:314 85:558 86:253 87:211 88:307 89:694 90:105 91:943 92:684 93:432 94:952 95:640 96:255 97:53 98:503 99:243 100:28 101:23 102:394 103:1066 104:1679 105:187 106:40 107:1550 108:530 109:380 110:104 111:2329 112:918 113:30 114:48 115:63 116:52 117:1296 118:80 119:70 120:1540 121:33 122:61 123:147 124:85 125:24 126:1 128:544 129:405 130:637 131:1061 132:566 133:221 134:481 135:121 136:683 137:494 138:998 139:439 140:694 141:359 142:983 143:876 144:399 145:163 146:667 147:502 148:983 149:649 150:203 151:786 152:502 153:181 154:1143 155:968 156:1256 157:458 158:591 159:720 160:630 161:684 162:1017 163:444 164:754 165:626 166:809 167:699 168:1478 169:159 170:1840 171:100 172:1298 173:813 174:361 175:92 176:465 177:923 178:621 179:884 180:40 181:2345 182:29 183:1332 184:452 185:3260 186:3145 187:1668 188:797 189:1865 190:6336 191:578 192:5134 193:1808 194:1135 195:936 196:763 197:1151 198:2711 199:5184 200:4471 201:3644 202:998 203:773 204:2176 205:1815 206:1588 207:1572 208:1557 209:1956 210:346 211:488 212:905 213:733 214:959 215:40 216:2485 217:474 218:602 219:18 220:85 221:456 222:24 223:1304 End of report