IPv4 R&E Routing Table Report 20:15 GMT Tue 12 Aug, 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: 280349 Prefixes after maximum aggregation (per Origin AS): 120265 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143832 Number of IPv4 prefixes with a valid ROA: 131918 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 148390 Total ASes present in the Internet Routing Table: 20716 Prefixes per ASN: 13.53 Origin-only ASes present in the Internet Routing Table: 17839 Origin ASes announcing only one prefix: 7961 Transit ASes present in the Internet Routing Table: 2877 Transit-only ASes present in the Internet Routing Table: 719 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: 336 Number of instances of unregistered ASNs: 365 Number of 32-bit ASNs allocated by the RIRs: 47119 Number of 32-bit ASNs visible in the Routing Table: 8211 Prefixes from 32-bit ASNs in the Routing Table: 33300 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: 99 Number of addresses announced to Internet: 1638312709 Equivalent to 97 /8s, 166 /16s and 171 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89231 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36536 Total APNIC prefixes after maximum aggregation: 7644 APNIC Deaggregation factor: 4.78 Prefixes being announced from the APNIC address blocks: 35415 Unique aggregates announced from the APNIC address blocks: 8145 APNIC Region origin ASes present in the Internet Routing Table: 1211 APNIC Prefixes per ASN: 29.24 APNIC Region origin ASes announcing only one prefix: 477 APNIC Region transit ASes present in the Internet Routing Table: 193 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 568 Number of APNIC addresses announced to Internet: 174222956 Equivalent to 10 /8s, 98 /16s and 110 /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: 126765 Total ARIN prefixes after maximum aggregation: 66704 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124710 Unique aggregates announced from the ARIN address blocks: 68769 ARIN Region origin ASes present in the Internet Routing Table: 9296 ARIN Prefixes per ASN: 13.42 ARIN Region origin ASes announcing only one prefix: 3870 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: 2183 Number of ARIN addresses announced to Internet: 1022497289 Equivalent to 60 /8s, 242 /16s and 18 /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: 49456 Total RIPE prefixes after maximum aggregation: 27003 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51635 Unique aggregates announced from the RIPE address blocks: 38046 RIPE Region origin ASes present in the Internet Routing Table: 4713 RIPE Prefixes per ASN: 10.96 RIPE Region origin ASes announcing only one prefix: 1961 RIPE Region transit ASes present in the Internet Routing Table: 713 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1963 Number of RIPE addresses announced to Internet: 283275088 Equivalent to 16 /8s, 226 /16s and 111 /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: 56161 Total LACNIC prefixes after maximum aggregation: 16228 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54368 Unique aggregates announced from the LACNIC address blocks: 24336 LACNIC Region origin ASes present in the Internet Routing Table: 4357 LACNIC Prefixes per ASN: 12.48 LACNIC Region origin ASes announcing only one prefix: 1554 LACNIC Region transit ASes present in the Internet Routing Table: 870 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3339 Number of LACNIC addresses announced to Internet: 109004864 Equivalent to 6 /8s, 127 /16s and 72 /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: 11095 Total AfriNIC prefixes after maximum aggregation: 2432 AfriNIC Deaggregation factor: 4.56 Prefixes being announced from the AfriNIC address blocks: 14122 Unique aggregates announced from the AfriNIC address blocks: 4443 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 48.53 AfriNIC Region origin ASes announcing only one prefix: 99 AfriNIC Region transit ASes present in the Internet Routing Table: 84 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 158 Number of AfriNIC addresses announced to Internet: 49200896 Equivalent to 2 /8s, 238 /16s and 191 /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 12663 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1679 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1662 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 817 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 610 2169 463 SINET-AS Research Organization of Informa 132525 594 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 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 13771 41095 5309 AMAZON-02, US 22773 3336 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2930 228 1740 USDA-1, US 36352 2549 209 1140 AS-COLOCROSSING, US 367 2458 2966 1152 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1666 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1580 22816 1179 ATT-INTERNET4, 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 1209 95 987 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 672 48 596 CDNEXT, GB 34984 654 98 510 TELLCOM-AS, TR 8376 614 53 23 Jordan Data Communications, JO 8452 600 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 35819 520 516 55 MOBILY-AS Etihad Etisalat Company Mobily, 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 7370 1986 872 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1653 238 1201 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1183 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 886 1127 31 TELEFONICA BRASIL S.A, BR 11664 785 278 29 Techtel LMDS Comunicaciones Interactivas 11172 724 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 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 1303 572 23 RAYA-AS, EG 29571 1150 93 56 ORANGE-COTE-IVOIRE, CI 24863 996 388 19 LINKdotNET-AS, EG 36935 594 518 29 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 574 154 212 INTERNET-SOLUTIONS, ZA 37069 553 1112 11 MOBINIL, EG 36903 534 239 349 MT-MPLS, MA 36992 434 1038 210 ETISALAT-MISR, 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 13771 41095 5309 AMAZON-02, US 9808 12663 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7370 1986 872 UNINET, MX 22773 3336 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2930 228 1740 USDA-1, US 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2549 209 1140 AS-COLOCROSSING, US 367 2458 2966 1152 DNIC-ASBLK-00306-00371, US 11830 1986 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 12663 12548 CHINAMOBILE-CN China Mobile Communications Grou 8151 7370 6498 UNINET, MX 22773 3336 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2905 2715 CMNET-JIANGSU-AP China Mobile communications co 11830 1986 1922 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1679 1629 CMNET-HUNAN-AP China Mobile communications corp 56041 1662 1584 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 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 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 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 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US 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 /11:52 /12:160 /13:223 /14:593 /15:1117 /16:7761 /17:3477 /18:4187 /19:7564 /20:12848 /21:16051 /22:28638 /23:29409 /24:167967 /25:67 /26:83 /27:52 /28:18 /29:10 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3981 7370 UNINET, MX 22773 2492 3336 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2344 13771 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1030 1369 BRSPD-PUBLIC, US 36352 1016 2549 AS-COLOCROSSING, US 10620 964 1653 Telmex Colombia S.A., CO 209 962 1666 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:76 2:464 3:874 4:5 5:869 6:144 7:5 8:651 9:1 11:171 12:880 13:408 14:114 15:312 16:247 17:3 18:893 20:191 21:4 22:188 23:2648 24:663 27:22 29:19 31:527 32:12 34:10 35:175 36:3053 37:760 38:2588 39:629 40:88 41:1096 42:152 43:218 44:30 45:4270 46:1055 47:113 49:25 50:481 51:383 52:1381 54:315 55:1110 56:11 57:25 58:43 59:30 60:31 61:58 62:520 63:785 64:1937 65:1101 66:1576 67:1075 68:367 69:1247 70:449 71:190 72:686 74:971 75:320 76:250 77:457 78:358 79:247 80:304 81:383 82:742 83:231 84:326 85:465 86:252 87:201 88:304 89:701 90:108 91:990 92:696 93:449 94:969 95:693 96:268 97:54 98:504 99:193 100:40 101:30 102:429 103:1273 104:1668 105:210 106:47 107:1560 108:539 109:413 110:46 111:2269 112:845 113:44 114:55 115:33 116:53 117:1206 118:90 119:68 120:1497 121:49 122:60 123:150 124:69 125:26 126:1 128:528 129:402 130:682 131:985 132:572 133:212 134:506 135:121 136:677 137:523 138:1034 139:447 140:685 141:379 142:996 143:835 144:427 145:159 146:650 147:514 148:997 149:765 150:226 151:837 152:642 153:133 154:1238 155:920 156:937 157:422 158:572 159:752 160:905 161:657 162:1035 163:451 164:746 165:687 166:813 167:691 168:1565 169:168 170:1810 171:103 172:1318 173:819 174:365 175:91 176:502 177:966 178:595 179:851 180:44 181:2275 182:23 183:1155 184:450 185:3594 186:2950 187:1567 188:819 189:1936 190:6101 191:540 192:5228 193:1841 194:1197 195:938 196:919 197:1194 198:2779 199:5078 200:4590 201:3767 202:988 203:698 204:2182 205:1845 206:1572 207:1585 208:1587 209:1947 210:347 211:478 212:953 213:763 214:953 215:37 216:2606 217:480 218:583 219:19 220:44 221:472 222:24 223:1246 End of report