IPv4 R&E Routing Table Report 20:15 GMT Mon 05 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: 289684 Prefixes after maximum aggregation (per Origin AS): 119644 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149999 Number of IPv4 prefixes with a valid ROA: 147480 Number of IPv4 prefixes with an invalid ROA: 203 Number of IPv4 prefixes with no ROA: 142001 Total ASes present in the Internet Routing Table: 20660 Prefixes per ASN: 14.02 Origin-only ASes present in the Internet Routing Table: 17821 Origin ASes announcing only one prefix: 8017 Transit ASes present in the Internet Routing Table: 2839 Transit-only ASes present in the Internet Routing Table: 725 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: 261 Number of instances of unregistered ASNs: 290 Number of 32-bit ASNs allocated by the RIRs: 48318 Number of 32-bit ASNs visible in the Routing Table: 8326 Prefixes from 32-bit ASNs in the Routing Table: 34020 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: 121 Number of addresses announced to Internet: 1620267461 Equivalent to 96 /8s, 147 /16s and 81 /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: 94069 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42640 Total APNIC prefixes after maximum aggregation: 8827 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 39233 Unique aggregates announced from the APNIC address blocks: 8858 APNIC Region origin ASes present in the Internet Routing Table: 1317 APNIC Prefixes per ASN: 29.79 APNIC Region origin ASes announcing only one prefix: 547 APNIC Region transit ASes present in the Internet Routing Table: 221 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: 644 Number of APNIC addresses announced to Internet: 169037420 Equivalent to 10 /8s, 19 /16s and 78 /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: 126550 Total ARIN prefixes after maximum aggregation: 65233 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124414 Unique aggregates announced from the ARIN address blocks: 70991 ARIN Region origin ASes present in the Internet Routing Table: 9207 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3824 ARIN Region transit ASes present in the Internet Routing Table: 857 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: 2192 Number of ARIN addresses announced to Internet: 1012869417 Equivalent to 60 /8s, 95 /16s and 41 /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: 52164 Total RIPE prefixes after maximum aggregation: 26319 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54713 Unique aggregates announced from the RIPE address blocks: 37777 RIPE Region origin ASes present in the Internet Routing Table: 4574 RIPE Prefixes per ASN: 11.96 RIPE Region origin ASes announcing only one prefix: 1946 RIPE Region transit ASes present in the Internet Routing Table: 702 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1925 Number of RIPE addresses announced to Internet: 285395152 Equivalent to 17 /8s, 2 /16s and 200 /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: 57486 Total LACNIC prefixes after maximum aggregation: 16551 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 55312 Unique aggregates announced from the LACNIC address blocks: 24495 LACNIC Region origin ASes present in the Internet Routing Table: 4396 LACNIC Prefixes per ASN: 12.58 LACNIC Region origin ASes announcing only one prefix: 1571 LACNIC Region transit ASes present in the Internet Routing Table: 843 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: 3378 Number of LACNIC addresses announced to Internet: 107825248 Equivalent to 6 /8s, 109 /16s and 72 /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: 10583 Total AfriNIC prefixes after maximum aggregation: 2509 AfriNIC Deaggregation factor: 4.22 Prefixes being announced from the AfriNIC address blocks: 15891 Unique aggregates announced from the AfriNIC address blocks: 7763 AfriNIC Region origin ASes present in the Internet Routing Table: 326 AfriNIC Prefixes per ASN: 48.75 AfriNIC Region origin ASes announcing only one prefix: 129 AfriNIC Region transit ASes present in the Internet Routing Table: 89 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: 187 Number of AfriNIC addresses announced to Internet: 44991744 Equivalent to 2 /8s, 174 /16s and 133 /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 13207 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2231 140 507 LCS-AS-AP LARUS Limited, HK 56041 1756 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1731 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1046 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 888 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 739 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 651 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 14042 38462 5429 AMAZON-02, US 22773 4745 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1809 1885 821 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1477 717 703 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 1279 98 1035 AKAMAI-ASN1, NL 25019 1147 1335 138 SAUDINETSTC-AS, SA 34984 994 161 745 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 856 1841 16 TE-AS TE-AS, EG 212238 704 49 619 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 553 53 25 Jordan Data Communications, JO 5511 530 98 449 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 7342 1935 774 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1591 224 1173 Telmex Colombia S.A., CO 11664 1371 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1260 371 22 Telefonica del Peru S.A.A., PE 26615 1011 2486 56 TIM SA, BR 18881 905 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 691 43 204 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 1443 463 90 RAYA-AS, EG 37069 1099 1084 13 MOBINIL, EG 24863 935 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 560 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 503 131 133 Vodafone-, EG 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 36992 396 895 250 ETISALAT-MISR, EG 2018 357 318 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 14042 38462 5429 AMAZON-02, US 9808 13207 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7342 1935 774 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4745 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 17561 2231 140 507 LCS-AS-AP LARUS Limited, HK 11830 1992 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 13207 13087 CHINAMOBILE-CN China Mobile Communications Grou 8151 7342 6568 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4745 4372 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3335 3140 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2231 1724 LCS-AS-AP LARUS Limited, HK 11776 1908 1695 ATLANTICBB-JOHNSTOWN, US 56047 1731 1681 CMNET-HUNAN-AP China Mobile communications corp 56041 1756 1677 CMNET-ZHEJIANG-AP China Mobile communications c 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 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 12114 UNALLOCATED 12.129.100.0/24 7018 ATT-INTERNET4, US 22538 UNALLOCATED 12.131.3.0/24 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 23.137.48.0/24 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 /10:33 /11:51 /12:156 /13:215 /14:583 /15:1069 /16:7485 /17:3499 /18:4154 /19:7650 /20:13254 /21:16287 /22:28730 /23:29767 /24:176493 /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 4030 7342 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3053 4745 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2480 14042 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1054 1477 BRIGHTSPEED, US 11664 1047 1371 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1014 2417 AS-COLOCROSSING, US 10620 959 1591 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) ---------------------------------------------- 1:29 2:470 3:974 4:5 5:1179 6:173 7:5 8:640 9:5 11:172 12:891 13:546 14:178 15:360 16:250 17:3 18:906 20:201 21:4 22:188 23:2873 24:668 27:55 29:19 31:521 32:13 34:6 35:182 36:3344 37:623 38:2446 39:806 40:269 41:1071 42:29 43:210 44:30 45:4477 46:949 47:172 49:20 50:481 51:524 52:1076 54:222 55:1113 56:11 57:34 58:46 59:42 60:74 61:58 62:602 63:726 64:2110 65:1031 66:2364 67:1101 68:505 69:1209 70:438 71:154 72:708 74:991 75:300 76:237 77:415 78:567 79:259 80:347 81:410 82:838 83:209 84:343 85:631 86:239 87:198 88:283 89:655 90:105 91:942 92:665 93:952 94:986 95:1358 96:290 97:51 98:390 99:276 100:21 101:24 102:523 103:1296 104:1727 105:197 106:3 107:1656 108:520 109:385 110:93 111:2733 112:1223 113:36 114:37 115:56 116:55 117:1486 118:135 119:87 120:1768 121:39 122:75 123:113 124:69 125:49 128:570 129:383 130:703 131:1106 132:553 133:220 134:508 135:136 136:690 137:591 138:991 139:450 140:764 141:376 142:1438 143:869 144:396 145:194 146:687 147:471 148:1023 149:729 150:287 151:867 152:818 153:278 154:2285 155:1076 156:2050 157:486 158:633 159:847 160:633 161:692 162:972 163:442 164:737 165:634 166:579 167:700 168:1490 169:168 170:1907 171:101 172:1522 173:789 174:281 175:102 176:652 177:900 178:623 179:892 180:53 181:2525 182:32 183:1558 184:450 185:3532 186:3432 187:1681 188:1065 189:1888 190:6402 191:576 192:5088 193:1738 194:1127 195:999 196:719 197:1042 198:2714 199:2467 200:4639 201:3741 202:1090 203:818 204:2209 205:1815 206:1555 207:1736 208:1690 209:1956 210:376 211:504 212:1131 213:859 214:976 215:43 216:2527 217:557 218:642 219:30 220:92 221:528 222:29 223:1637 End of report