IPv4 R&E Routing Table Report 20:15 GMT Tue 09 Dec, 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: 286147 Prefixes after maximum aggregation (per Origin AS): 118323 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 148585 Number of IPv4 prefixes with a valid ROA: 142768 Number of IPv4 prefixes with an invalid ROA: 198 Number of IPv4 prefixes with no ROA: 143181 Total ASes present in the Internet Routing Table: 20571 Prefixes per ASN: 13.91 Origin-only ASes present in the Internet Routing Table: 17736 Origin ASes announcing only one prefix: 7995 Transit ASes present in the Internet Routing Table: 2835 Transit-only ASes present in the Internet Routing Table: 739 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 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: 48170 Number of 32-bit ASNs visible in the Routing Table: 8271 Prefixes from 32-bit ASNs in the Routing Table: 33708 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: 85 Number of addresses announced to Internet: 1608292765 Equivalent to 95 /8s, 220 /16s and 153 /24s Percentage of available address space announced: 43.4 Percentage of allocated address space announced: 43.4 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: 92691 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 41256 Total APNIC prefixes after maximum aggregation: 8214 APNIC Deaggregation factor: 5.02 Prefixes being announced from the APNIC address blocks: 37888 Unique aggregates announced from the APNIC address blocks: 8051 APNIC Region origin ASes present in the Internet Routing Table: 1247 APNIC Prefixes per ASN: 30.38 APNIC Region origin ASes announcing only one prefix: 506 APNIC Region transit ASes present in the Internet Routing Table: 210 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 598 Number of APNIC addresses announced to Internet: 167328868 Equivalent to 9 /8s, 249 /16s and 60 /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: 126578 Total ARIN prefixes after maximum aggregation: 65188 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123922 Unique aggregates announced from the ARIN address blocks: 70960 ARIN Region origin ASes present in the Internet Routing Table: 9194 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3833 ARIN Region transit ASes present in the Internet Routing Table: 851 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2190 Number of ARIN addresses announced to Internet: 1006790153 Equivalent to 60 /8s, 2 /16s and 102 /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: 50874 Total RIPE prefixes after maximum aggregation: 25594 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 53572 Unique aggregates announced from the RIPE address blocks: 36830 RIPE Region origin ASes present in the Internet Routing Table: 4537 RIPE Prefixes per ASN: 11.81 RIPE Region origin ASes announcing only one prefix: 1944 RIPE Region transit ASes present in the Internet Routing Table: 685 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 22 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1901 Number of RIPE addresses announced to Internet: 280856528 Equivalent to 16 /8s, 189 /16s and 135 /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: 56599 Total LACNIC prefixes after maximum aggregation: 16657 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 54527 Unique aggregates announced from the LACNIC address blocks: 24519 LACNIC Region origin ASes present in the Internet Routing Table: 4444 LACNIC Prefixes per ASN: 12.27 LACNIC Region origin ASes announcing only one prefix: 1594 LACNIC Region transit ASes present in the Internet Routing Table: 875 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 27 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3416 Number of LACNIC addresses announced to Internet: 107714144 Equivalent to 6 /8s, 107 /16s and 150 /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: 10579 Total AfriNIC prefixes after maximum aggregation: 2456 AfriNIC Deaggregation factor: 4.31 Prefixes being announced from the AfriNIC address blocks: 16153 Unique aggregates announced from the AfriNIC address blocks: 8141 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 54.76 AfriNIC Region origin ASes announcing only one prefix: 118 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 166 Number of AfriNIC addresses announced to Internet: 45501952 Equivalent to 2 /8s, 182 /16s and 78 /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 13110 8729 118 CHINAMOBILE-CN China Mobile Communication 56046 3275 828 194 CMNET-JIANGSU-AP China Mobile communicati 17561 2379 149 554 LCS-AS-AP LARUS Limited, HK 56041 1741 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1720 192 50 CMNET-HUNAN-AP China Mobile communication 24444 982 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 888 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 880 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 726 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 603 973 163 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 14183 37206 5393 AMAZON-02, US 22773 4775 3099 365 ASN-CXA-ALL-CCI-22773-RDC, US 749 3208 54760 2459 DNIC-AS-00749, US 36352 2533 207 1163 AS-COLOCROSSING, US 6167 1968 4170 530 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1843 1973 849 DNIC-ASBLK-00306-00371, US 209 1644 4884 265 CENTURYLINK-US-LEGACY-QWEST, US 19901 1458 712 709 BRIGHTSPEED, US 20057 1437 1001 112 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 4833 298 66 ALJAWWALSTC-AS, SA 20940 1192 92 978 AKAMAI-ASN1, NL 25019 1135 1335 138 SAUDINETSTC-AS, SA 3215 895 4819 296 France Telecom - Orange, FR 8452 867 1841 16 TE-AS TE-AS, EG 34984 859 129 663 TELLCOM-AS, TR 212238 683 48 600 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 562 53 24 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 7367 1931 774 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1649 234 1195 Telmex Colombia S.A., CO 11664 1360 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1347 779 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2486 56 TIM SA, BR 18881 901 1127 31 TELEFONICA BRASIL S.A, BR 12252 681 164 24 America Movil Peru S.A.C., PE 52468 674 42 200 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 1413 339 74 RAYA-AS, EG 24863 1026 389 22 LINKdotNET-AS, EG 37069 905 1096 13 MOBINIL, EG 36992 620 1112 284 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 36935 507 127 129 Vodafone-, EG 36903 469 211 335 MT-MPLS, MA 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 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 14183 37206 5393 AMAZON-02, US 9808 13110 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 7367 1931 774 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4775 3099 365 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3275 828 194 CMNET-JIANGSU-AP China Mobile communicati 749 3208 54760 2459 DNIC-AS-00749, US 36352 2533 207 1163 AS-COLOCROSSING, US 17561 2379 149 554 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 13110 12992 CHINAMOBILE-CN China Mobile Communications Grou 8151 7367 6593 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4775 4410 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3275 3081 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2379 1825 LCS-AS-AP LARUS Limited, HK 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1720 1670 CMNET-HUNAN-AP China Mobile communications corp 56041 1741 1662 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 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 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, 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 /10:31 /11:51 /12:156 /13:214 /14:582 /15:1067 /16:7475 /17:3452 /18:4156 /19:7645 /20:12899 /21:16158 /22:28671 /23:29407 /24:173927 /25:60 /26:83 /27:49 /28:18 /29:6 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4049 7367 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 3049 4775 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2417 14183 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1060 1458 BRIGHTSPEED, US 11664 1035 1360 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1013 2533 AS-COLOCROSSING, US 10620 980 1649 Telmex Colombia S.A., CO 209 957 1644 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) ---------------------------------------------- 1:30 2:483 3:967 4:5 5:1156 6:177 7:5 8:625 9:5 11:171 12:883 13:490 14:125 15:356 16:278 17:3 18:905 20:202 21:4 22:188 23:2769 24:604 27:40 29:19 31:472 32:13 34:7 35:182 36:3316 37:680 38:2485 39:777 40:266 41:1010 42:23 43:222 44:29 45:4440 46:925 47:161 49:19 50:491 51:518 52:1389 54:270 55:1112 56:11 57:31 58:19 59:39 60:15 61:51 62:589 63:720 64:2136 65:1011 66:2429 67:1120 68:484 69:1218 70:434 71:159 72:713 74:991 75:302 76:235 77:459 78:546 79:245 80:355 81:415 82:830 83:207 84:352 85:597 86:238 87:193 88:282 89:638 90:103 91:934 92:677 93:963 94:955 95:1302 96:308 97:52 98:402 99:262 100:21 101:23 102:513 103:1188 104:1725 105:197 107:1682 108:525 109:365 110:40 111:2615 112:1188 113:33 114:34 115:9 116:57 117:1454 118:69 119:90 120:1723 121:37 122:76 123:95 124:58 125:49 128:563 129:384 130:683 131:1094 132:561 133:221 134:533 135:135 136:681 137:500 138:1021 139:440 140:711 141:374 142:1372 143:898 144:419 145:193 146:686 147:507 148:1034 149:714 150:283 151:859 152:770 153:245 154:2357 155:1066 156:2103 157:447 158:638 159:821 160:627 161:709 162:1013 163:424 164:750 165:622 166:564 167:697 168:1486 169:171 170:1921 171:102 172:1552 173:799 174:274 175:96 176:598 177:925 178:605 179:894 180:44 181:2444 182:27 183:1533 184:451 185:3443 186:3188 187:1688 188:902 189:1951 190:6373 191:566 192:5065 193:1704 194:1132 195:937 196:770 197:1077 198:2691 199:2500 200:4324 201:3669 202:1051 203:737 204:2199 205:1835 206:1517 207:1730 208:1579 209:1971 210:405 211:500 212:1030 213:791 214:942 215:42 216:2439 217:528 218:635 219:29 220:26 221:517 222:30 223:1588 End of report