IPv4 R&E Routing Table Report 20:15 GMT Tue 13 Jan, 2026 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: 289872 Prefixes after maximum aggregation (per Origin AS): 119611 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 150172 Number of IPv4 prefixes with a valid ROA: 147771 Number of IPv4 prefixes with an invalid ROA: 204 Number of IPv4 prefixes with no ROA: 141897 Total ASes present in the Internet Routing Table: 20642 Prefixes per ASN: 14.04 Origin-only ASes present in the Internet Routing Table: 17797 Origin ASes announcing only one prefix: 8013 Transit ASes present in the Internet Routing Table: 2845 Transit-only ASes present in the Internet Routing Table: 736 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: 35 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 268 Number of instances of unregistered ASNs: 297 Number of 32-bit ASNs allocated by the RIRs: 48355 Number of 32-bit ASNs visible in the Routing Table: 8358 Prefixes from 32-bit ASNs in the Routing Table: 34011 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: 131 Number of addresses announced to Internet: 1622462149 Equivalent to 96 /8s, 180 /16s and 206 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 93586 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 43241 Total APNIC prefixes after maximum aggregation: 9076 APNIC Deaggregation factor: 4.76 Prefixes being announced from the APNIC address blocks: 39905 Unique aggregates announced from the APNIC address blocks: 9300 APNIC Region origin ASes present in the Internet Routing Table: 1334 APNIC Prefixes per ASN: 29.91 APNIC Region origin ASes announcing only one prefix: 559 APNIC Region transit ASes present in the Internet Routing Table: 231 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 658 Number of APNIC addresses announced to Internet: 170900332 Equivalent to 10 /8s, 47 /16s and 187 /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: 126932 Total ARIN prefixes after maximum aggregation: 65302 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124551 Unique aggregates announced from the ARIN address blocks: 71153 ARIN Region origin ASes present in the Internet Routing Table: 9217 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3838 ARIN Region transit ASes present in the Internet Routing Table: 861 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2204 Number of ARIN addresses announced to Internet: 1013762601 Equivalent to 60 /8s, 108 /16s and 202 /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: 51585 Total RIPE prefixes after maximum aggregation: 26050 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54215 Unique aggregates announced from the RIPE address blocks: 37426 RIPE Region origin ASes present in the Internet Routing Table: 4508 RIPE Prefixes per ASN: 12.03 RIPE Region origin ASes announcing only one prefix: 1917 RIPE Region transit ASes present in the Internet Routing Table: 680 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: 1899 Number of RIPE addresses announced to Internet: 284999120 Equivalent to 16 /8s, 252 /16s and 189 /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: 57364 Total LACNIC prefixes after maximum aggregation: 16483 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 55236 Unique aggregates announced from the LACNIC address blocks: 24427 LACNIC Region origin ASes present in the Internet Routing Table: 4430 LACNIC Prefixes per ASN: 12.47 LACNIC Region origin ASes announcing only one prefix: 1585 LACNIC Region transit ASes present in the Internet Routing Table: 863 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: 3429 Number of LACNIC addresses announced to Internet: 107793248 Equivalent to 6 /8s, 108 /16s and 203 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 10482 Total AfriNIC prefixes after maximum aggregation: 2489 AfriNIC Deaggregation factor: 4.21 Prefixes being announced from the AfriNIC address blocks: 15834 Unique aggregates announced from the AfriNIC address blocks: 7745 AfriNIC Region origin ASes present in the Internet Routing Table: 298 AfriNIC Prefixes per ASN: 53.13 AfriNIC Region origin ASes announcing only one prefix: 114 AfriNIC Region transit ASes present in the Internet Routing Table: 87 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 168 Number of AfriNIC addresses announced to Internet: 44856064 Equivalent to 2 /8s, 172 /16s and 115 /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 13294 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2218 139 496 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1708 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1055 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 890 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 759 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 653 1159 153 ALIBABA-CN-NET Alibaba US Technology Co., 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 14146 38738 5428 AMAZON-02, US 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1907 259 213 ATLANTICBB-JOHNSTOWN, US 367 1811 1885 826 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1477 724 699 BRIGHTSPEED, US 20057 1438 1017 111 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 4969 306 72 ALJAWWALSTC-AS, SA 20940 1277 98 1033 AKAMAI-ASN1, NL 25019 1147 1335 138 SAUDINETSTC-AS, SA 34984 994 161 745 TELLCOM-AS, TR 3215 900 4820 300 France Telecom - Orange, FR 8452 889 1841 16 TE-AS TE-AS, EG 212238 704 49 619 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 552 53 25 Jordan Data Communications, JO 5511 531 98 450 OPENTRANSIT, FR 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 1936 778 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1590 224 1173 Telmex Colombia S.A., CO 11664 1365 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1258 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 693 43 206 UFINET PANAMA S.A., PA 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 1447 463 90 RAYA-AS, EG 37069 1083 1084 13 MOBINIL, EG 24863 931 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 566 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 506 132 135 Vodafone-, EG 29571 424 94 22 ORANGE-COTE-IVOIRE, CI 36992 378 876 245 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 14146 38738 5428 AMAZON-02, US 9808 13294 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7370 1936 778 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 17561 2218 139 496 LCS-AS-AP LARUS Limited, HK 11830 1991 369 65 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 13294 13174 CHINAMOBILE-CN China Mobile Communications Grou 8151 7370 6592 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4776 4412 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3345 3150 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 17561 2218 1722 LCS-AS-AP LARUS Limited, HK 11776 1907 1694 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1708 1658 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 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 33684 UNALLOCATED 12.37.144.0/24 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 26295 UNALLOCATED 12.110.210.0/23 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 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 23.155.185.0/24 Origin: 401541 OSIE, US 23.155.185.0/24 Transit: 397423 TIER-NET, US 23.157.217.0/24 Origin: 401541 OSIE, US 23.157.217.0/24 Transit: 397423 TIER-NET, 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 /10:32 /11:51 /12:159 /13:217 /14:583 /15:1069 /16:7509 /17:3503 /18:4169 /19:7665 /20:13256 /21:16216 /22:28736 /23:29711 /24:176738 /25:60 /26:83 /27:50 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4052 7370 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4776 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2498 14146 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1052 1365 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1477 BRIGHTSPEED, US 36352 1015 2419 AS-COLOCROSSING, US 10620 958 1590 Telmex Colombia S.A., CO 209 955 1642 CENTURYLINK-US-LEGACY-QWEST, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:49 2:460 3:983 4:5 5:1183 6:174 7:5 8:639 9:5 11:172 12:885 13:569 14:180 15:359 16:250 17:3 18:909 20:203 21:4 22:188 23:2874 24:670 27:55 29:19 31:502 32:13 34:7 35:182 36:3317 37:607 38:2375 39:826 40:269 41:1076 42:24 43:218 44:30 45:4542 46:939 47:172 49:20 50:482 51:523 52:1074 54:224 55:1113 56:11 57:31 58:45 59:43 60:75 61:67 62:591 63:722 64:2147 65:1033 66:2365 67:1130 68:503 69:1237 70:437 71:155 72:701 74:976 75:296 76:237 77:412 78:565 79:241 80:343 81:386 82:844 83:208 84:346 85:633 86:239 87:203 88:278 89:643 90:100 91:927 92:677 93:953 94:964 95:1345 96:289 97:51 98:391 99:279 100:22 101:26 102:514 103:1314 104:1723 105:167 106:3 107:1683 108:522 109:380 110:94 111:2746 112:1267 113:37 114:35 115:55 116:54 117:1507 118:141 119:92 120:1926 121:39 122:76 123:131 124:67 125:49 128:564 129:376 130:702 131:1120 132:553 133:220 134:515 135:136 136:730 137:609 138:1003 139:447 140:760 141:377 142:1468 143:865 144:399 145:193 146:689 147:484 148:996 149:721 150:283 151:866 152:817 153:282 154:2385 155:1110 156:2057 157:489 158:648 159:839 160:632 161:701 162:979 163:418 164:738 165:631 166:577 167:709 168:1515 169:163 170:1903 171:100 172:1546 173:794 174:279 175:100 176:651 177:865 178:620 179:898 180:45 181:2510 182:24 183:1606 184:440 185:3407 186:3442 187:1689 188:1033 189:1944 190:6339 191:578 192:5093 193:1717 194:1108 195:949 196:701 197:1026 198:2711 199:2473 200:4683 201:3722 202:1124 203:837 204:2209 205:1784 206:1514 207:1726 208:1702 209:1930 210:438 211:516 212:1096 213:858 214:978 215:43 216:2529 217:556 218:644 219:29 220:83 221:530 222:29 223:1654 End of report