IPv4 R&E Routing Table Report 20:15 GMT Mon 12 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: 289618 Prefixes after maximum aggregation (per Origin AS): 119553 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 150125 Number of IPv4 prefixes with a valid ROA: 147840 Number of IPv4 prefixes with an invalid ROA: 204 Number of IPv4 prefixes with no ROA: 141574 Total ASes present in the Internet Routing Table: 20620 Prefixes per ASN: 14.05 Origin-only ASes present in the Internet Routing Table: 17781 Origin ASes announcing only one prefix: 8028 Transit ASes present in the Internet Routing Table: 2839 Transit-only ASes present in the Internet Routing Table: 724 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: 279 Number of instances of unregistered ASNs: 308 Number of 32-bit ASNs allocated by the RIRs: 48351 Number of 32-bit ASNs visible in the Routing Table: 8321 Prefixes from 32-bit ASNs in the Routing Table: 33863 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: 130 Number of addresses announced to Internet: 1622083013 Equivalent to 96 /8s, 175 /16s and 5 /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: 93702 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42963 Total APNIC prefixes after maximum aggregation: 9000 APNIC Deaggregation factor: 4.77 Prefixes being announced from the APNIC address blocks: 39631 Unique aggregates announced from the APNIC address blocks: 9230 APNIC Region origin ASes present in the Internet Routing Table: 1334 APNIC Prefixes per ASN: 29.71 APNIC Region origin ASes announcing only one prefix: 554 APNIC Region transit ASes present in the Internet Routing Table: 228 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: 655 Number of APNIC addresses announced to Internet: 170814828 Equivalent to 10 /8s, 46 /16s and 109 /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: 126991 Total ARIN prefixes after maximum aggregation: 65336 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124616 Unique aggregates announced from the ARIN address blocks: 71212 ARIN Region origin ASes present in the Internet Routing Table: 9224 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3837 ARIN Region transit ASes present in the Internet Routing Table: 866 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: 2203 Number of ARIN addresses announced to Internet: 1013533993 Equivalent to 60 /8s, 105 /16s and 77 /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: 51819 Total RIPE prefixes after maximum aggregation: 26123 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54462 Unique aggregates announced from the RIPE address blocks: 37554 RIPE Region origin ASes present in the Internet Routing Table: 4548 RIPE Prefixes per ASN: 11.97 RIPE Region origin ASes announcing only one prefix: 1941 RIPE Region transit ASes present in the Internet Routing Table: 688 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1925 Number of RIPE addresses announced to Internet: 285162192 Equivalent to 16 /8s, 255 /16s and 58 /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: 57058 Total LACNIC prefixes after maximum aggregation: 16379 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54949 Unique aggregates announced from the LACNIC address blocks: 24276 LACNIC Region origin ASes present in the Internet Routing Table: 4366 LACNIC Prefixes per ASN: 12.59 LACNIC Region origin ASes announcing only one prefix: 1577 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: 3367 Number of LACNIC addresses announced to Internet: 107660896 Equivalent to 6 /8s, 106 /16s and 198 /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: 10508 Total AfriNIC prefixes after maximum aggregation: 2494 AfriNIC Deaggregation factor: 4.21 Prefixes being announced from the AfriNIC address blocks: 15830 Unique aggregates announced from the AfriNIC address blocks: 7733 AfriNIC Region origin ASes present in the Internet Routing Table: 304 AfriNIC Prefixes per ASN: 52.07 AfriNIC Region origin ASes announcing only one prefix: 119 AfriNIC Region transit ASes present in the Internet Routing Table: 85 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: 171 Number of AfriNIC addresses announced to Internet: 44760576 Equivalent to 2 /8s, 170 /16s and 254 /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 13226 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2220 140 498 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1707 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1052 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 748 497 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 14155 38628 5429 AMAZON-02, US 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2418 200 1146 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1907 259 213 ATLANTICBB-JOHNSTOWN, US 367 1812 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 1148 1335 138 SAUDINETSTC-AS, SA 34984 995 161 746 TELLCOM-AS, TR 3215 900 4820 300 France Telecom - Orange, FR 8452 889 1841 16 TE-AS TE-AS, EG 212238 705 49 620 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 553 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 7355 1935 777 UNINET, MX 11830 1985 369 65 Instituto Costarricense de Electricidad y 10620 1591 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 1255 371 22 Telefonica del Peru S.A.A., PE 26615 1003 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 692 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 568 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 505 131 134 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 14155 38628 5429 AMAZON-02, US 9808 13226 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7355 1935 777 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 2418 200 1146 AS-COLOCROSSING, US 17561 2220 140 498 LCS-AS-AP LARUS Limited, HK 11830 1985 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 13226 13106 CHINAMOBILE-CN China Mobile Communications Grou 8151 7355 6578 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 1985 1920 Instituto Costarricense de Electricidad y Telec 17561 2220 1722 LCS-AS-AP LARUS Limited, HK 11776 1907 1694 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1707 1657 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 /15:1070 /16:7498 /17:3506 /18:4166 /19:7669 /20:13284 /21:16219 /22:28743 /23:29624 /24:176539 /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 4042 7355 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4776 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2499 14155 AMAZON-02, US 11830 1690 1985 Instituto Costarricense de Electricidad y Telecom., CR 19901 1052 1477 BRIGHTSPEED, US 11664 1051 1365 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1015 2418 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) ---------------------------------------------- 1:46 2:461 3:984 4:5 5:1189 6:174 7:5 8:642 9:5 11:172 12:887 13:572 14:179 15:360 16:250 17:3 18:908 20:203 21:4 22:188 23:2887 24:670 27:55 29:19 31:501 32:13 34:9 35:183 36:3307 37:611 38:2372 39:820 40:270 41:1080 42:24 43:219 44:30 45:4465 46:941 47:172 49:20 50:482 51:522 52:1071 54:225 55:1112 56:11 57:31 58:48 59:42 60:74 61:62 62:592 63:719 64:2148 65:1034 66:2361 67:1127 68:504 69:1235 70:436 71:155 72:704 74:992 75:296 76:235 77:430 78:566 79:245 80:346 81:389 82:847 83:209 84:348 85:633 86:240 87:203 88:278 89:640 90:100 91:936 92:683 93:945 94:967 95:1351 96:290 97:51 98:390 99:279 100:21 101:25 102:517 103:1300 104:1737 105:180 106:3 107:1682 108:526 109:381 110:94 111:2738 112:1268 113:37 114:34 115:55 116:54 117:1504 118:132 119:87 120:1779 121:40 122:76 123:129 124:68 125:49 128:564 129:372 130:710 131:1098 132:557 133:220 134:515 135:136 136:723 137:609 138:996 139:449 140:756 141:382 142:1442 143:866 144:398 145:193 146:690 147:481 148:1006 149:724 150:283 151:863 152:817 153:282 154:2381 155:1106 156:2059 157:494 158:646 159:839 160:637 161:699 162:981 163:417 164:738 165:625 166:577 167:708 168:1502 169:164 170:1902 171:100 172:1555 173:794 174:279 175:96 176:655 177:866 178:627 179:889 180:45 181:2515 182:24 183:1575 184:442 185:3439 186:3428 187:1687 188:1039 189:1940 190:6330 191:571 192:5095 193:1735 194:1099 195:998 196:702 197:1025 198:2707 199:2469 200:4631 201:3728 202:1122 203:837 204:2205 205:1787 206:1514 207:1729 208:1705 209:1932 210:443 211:516 212:1101 213:865 214:984 215:43 216:2533 217:558 218:644 219:29 220:83 221:529 222:29 223:1654 End of report