IPv4 R&E Routing Table Report 20:15 GMT Sat 13 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: 278091 Prefixes after maximum aggregation (per Origin AS): 118372 Deaggregation factor: 2.35 Unique aggregates announced (without unneeded subnets): 141226 Number of IPv4 prefixes with a valid ROA: 130835 Number of IPv4 prefixes with an invalid ROA: 44 Number of IPv4 prefixes with no ROA: 147212 Total ASes present in the Internet Routing Table: 20390 Prefixes per ASN: 13.64 Origin-only ASes present in the Internet Routing Table: 17605 Origin ASes announcing only one prefix: 7827 Transit ASes present in the Internet Routing Table: 2785 Transit-only ASes present in the Internet Routing Table: 673 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: 360 Number of instances of unregistered ASNs: 389 Number of 32-bit ASNs allocated by the RIRs: 47403 Number of 32-bit ASNs visible in the Routing Table: 8099 Prefixes from 32-bit ASNs in the Routing Table: 33381 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: 94 Number of addresses announced to Internet: 1616365029 Equivalent to 96 /8s, 87 /16s and 197 /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: 88261 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36500 Total APNIC prefixes after maximum aggregation: 7663 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 35373 Unique aggregates announced from the APNIC address blocks: 7662 APNIC Region origin ASes present in the Internet Routing Table: 1154 APNIC Prefixes per ASN: 30.65 APNIC Region origin ASes announcing only one prefix: 444 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: 521 Number of APNIC addresses announced to Internet: 161979756 Equivalent to 9 /8s, 167 /16s and 157 /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: 126224 Total ARIN prefixes after maximum aggregation: 65921 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123704 Unique aggregates announced from the ARIN address blocks: 67375 ARIN Region origin ASes present in the Internet Routing Table: 9188 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3824 ARIN Region transit ASes present in the Internet Routing Table: 854 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: 2167 Number of ARIN addresses announced to Internet: 1022055401 Equivalent to 60 /8s, 235 /16s and 83 /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: 47939 Total RIPE prefixes after maximum aggregation: 25752 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 50267 Unique aggregates announced from the RIPE address blocks: 36814 RIPE Region origin ASes present in the Internet Routing Table: 4502 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1886 RIPE Region transit ASes present in the Internet Routing Table: 688 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1856 Number of RIPE addresses announced to Internet: 277213008 Equivalent to 16 /8s, 133 /16s and 239 /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: 56442 Total LACNIC prefixes after maximum aggregation: 16395 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54544 Unique aggregates announced from the LACNIC address blocks: 24458 LACNIC Region origin ASes present in the Internet Routing Table: 4434 LACNIC Prefixes per ASN: 12.30 LACNIC Region origin ASes announcing only one prefix: 1563 LACNIC Region transit ASes present in the Internet Routing Table: 862 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3394 Number of LACNIC addresses announced to Internet: 108395584 Equivalent to 6 /8s, 117 /16s and 252 /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: 10626 Total AfriNIC prefixes after maximum aggregation: 2374 AfriNIC Deaggregation factor: 4.48 Prefixes being announced from the AfriNIC address blocks: 14109 Unique aggregates announced from the AfriNIC address blocks: 4825 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 46.87 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 71 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 161 Number of AfriNIC addresses announced to Internet: 46603264 Equivalent to 2 /8s, 199 /16s and 28 /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 2950 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 608 2169 461 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 14346 40861 5371 AMAZON-02, US 22773 3955 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 2993 233 1736 USDA-1, US 36352 2512 206 1169 AS-COLOCROSSING, US 367 2294 2598 1120 DNIC-ASBLK-00306-00371, US 6167 1934 4005 520 CELLCO-PART, US 11776 1902 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 1241 98 1007 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 212238 691 50 615 CDNEXT, GB 34984 644 109 502 TELLCOM-AS, TR 8376 592 53 26 Jordan Data Communications, JO 35819 578 576 71 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 7265 1948 786 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1681 240 1219 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1180 371 22 Telefonica del Peru S.A.A., PE 26615 1009 2487 55 TIM SA, BR 18881 894 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 1309 572 23 RAYA-AS, EG 24863 997 389 23 LINKdotNET-AS, EG 37069 973 1096 13 MOBINIL, EG 36935 646 522 42 Vodafone-, EG 20011 576 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 29571 517 98 69 ORANGE-COTE-IVOIRE, CI 36992 476 1085 219 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 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 14346 40861 5371 AMAZON-02, US 9808 13075 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7265 1948 786 UNINET, MX 22773 3955 3046 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 2993 233 1736 USDA-1, US 56046 2950 811 191 CMNET-JIANGSU-AP China Mobile communicati 36352 2512 206 1169 AS-COLOCROSSING, US 367 2294 2598 1120 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 7265 6479 UNINET, MX 22773 3955 3641 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2950 2759 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 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 /16:7574 /17:3415 /18:4093 /19:7565 /20:13062 /21:15794 /22:28175 /23:29185 /24:166818 /25:66 /26:82 /27:49 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3998 7265 UNINET, MX 22773 2505 3955 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2433 14346 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 997 2512 AS-COLOCROSSING, US 10620 991 1681 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:478 3:921 4:5 5:756 6:146 7:5 8:640 9:3 11:171 12:893 13:503 14:169 15:340 16:265 17:3 18:895 20:193 21:4 22:188 23:2548 24:682 27:55 29:19 31:478 32:12 34:10 35:180 36:3105 37:798 38:2405 39:669 40:93 41:997 42:21 43:199 44:30 45:4321 46:977 47:118 49:20 50:469 51:383 52:1440 54:362 55:1111 56:11 57:26 58:17 59:36 60:90 61:59 62:519 63:768 64:1930 65:1091 66:1578 67:1065 68:362 69:1189 70:446 71:180 72:694 74:954 75:311 76:247 77:437 78:321 79:235 80:325 81:368 82:727 83:209 84:310 85:564 86:249 87:208 88:307 89:695 90:105 91:941 92:689 93:433 94:950 95:640 96:258 97:50 98:488 99:243 100:28 101:21 102:396 103:1063 104:1665 105:187 106:40 107:1550 108:531 109:382 110:101 111:2329 112:918 113:30 114:47 115:63 116:52 117:1296 118:70 119:70 120:1540 121:33 122:61 123:146 124:85 125:24 126:1 128:545 129:401 130:631 131:1070 132:569 133:218 134:478 135:121 136:681 137:495 138:1000 139:437 140:694 141:362 142:984 143:867 144:397 145:163 146:666 147:504 148:995 149:657 150:203 151:773 152:501 153:181 154:1144 155:949 156:1259 157:438 158:599 159:722 160:636 161:688 162:1015 163:445 164:762 165:614 166:810 167:702 168:1517 169:160 170:1855 171:100 172:1302 173:814 174:361 175:91 176:462 177:949 178:625 179:889 180:39 181:2352 182:29 183:1330 184:451 185:3298 186:3146 187:1689 188:796 189:1877 190:6337 191:585 192:5137 193:1811 194:1136 195:956 196:756 197:1144 198:2713 199:5162 200:4470 201:3634 202:996 203:774 204:2176 205:1816 206:1586 207:1574 208:1549 209:1955 210:348 211:489 212:895 213:731 214:953 215:40 216:2477 217:464 218:602 219:18 220:85 221:456 222:24 223:1303 End of report