IPv4 R&E Routing Table Report 20:15 GMT Fri 16 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: 288522 Prefixes after maximum aggregation (per Origin AS): 119151 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149246 Number of IPv4 prefixes with a valid ROA: 146752 Number of IPv4 prefixes with an invalid ROA: 206 Number of IPv4 prefixes with no ROA: 141564 Total ASes present in the Internet Routing Table: 20532 Prefixes per ASN: 14.05 Origin-only ASes present in the Internet Routing Table: 17696 Origin ASes announcing only one prefix: 7971 Transit ASes present in the Internet Routing Table: 2836 Transit-only ASes present in the Internet Routing Table: 734 Paths with bogon ASNs present in the IPv4 Routing Table: 7 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 33 Max AS path prepend of ASN ( 37133) 26 Prefixes from unregistered ASNs in the Routing Table: 249 Number of instances of unregistered ASNs: 278 Number of 32-bit ASNs allocated by the RIRs: 48399 Number of 32-bit ASNs visible in the Routing Table: 8325 Prefixes from 32-bit ASNs in the Routing Table: 34555 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: 108 Number of addresses announced to Internet: 1613005509 Equivalent to 96 /8s, 36 /16s and 130 /24s Percentage of available address space announced: 43.6 Percentage of allocated address space announced: 43.6 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: 93560 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42781 Total APNIC prefixes after maximum aggregation: 8924 APNIC Deaggregation factor: 4.79 Prefixes being announced from the APNIC address blocks: 39745 Unique aggregates announced from the APNIC address blocks: 9101 APNIC Region origin ASes present in the Internet Routing Table: 1343 APNIC Prefixes per ASN: 29.59 APNIC Region origin ASes announcing only one prefix: 568 APNIC Region transit ASes present in the Internet Routing Table: 236 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: 660 Number of APNIC addresses announced to Internet: 171029356 Equivalent to 10 /8s, 49 /16s and 179 /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: 126219 Total ARIN prefixes after maximum aggregation: 64865 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 123935 Unique aggregates announced from the ARIN address blocks: 70575 ARIN Region origin ASes present in the Internet Routing Table: 9132 ARIN Prefixes per ASN: 13.57 ARIN Region origin ASes announcing only one prefix: 3791 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: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2189 Number of ARIN addresses announced to Internet: 1008645929 Equivalent to 60 /8s, 30 /16s and 183 /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: 52203 Total RIPE prefixes after maximum aggregation: 26304 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54676 Unique aggregates announced from the RIPE address blocks: 37923 RIPE Region origin ASes present in the Internet Routing Table: 4506 RIPE Prefixes per ASN: 12.13 RIPE Region origin ASes announcing only one prefix: 1919 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: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1914 Number of RIPE addresses announced to Internet: 280735184 Equivalent to 16 /8s, 187 /16s and 173 /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: 56537 Total LACNIC prefixes after maximum aggregation: 16358 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54376 Unique aggregates announced from the LACNIC address blocks: 24165 LACNIC Region origin ASes present in the Internet Routing Table: 4399 LACNIC Prefixes per ASN: 12.36 LACNIC Region origin ASes announcing only one prefix: 1575 LACNIC Region transit ASes present in the Internet Routing Table: 852 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3392 Number of LACNIC addresses announced to Internet: 107708256 Equivalent to 6 /8s, 107 /16s and 127 /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: 10533 Total AfriNIC prefixes after maximum aggregation: 2505 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 15682 Unique aggregates announced from the AfriNIC address blocks: 7384 AfriNIC Region origin ASes present in the Internet Routing Table: 303 AfriNIC Prefixes per ASN: 51.76 AfriNIC Region origin ASes announcing only one prefix: 118 AfriNIC Region transit ASes present in the Internet Routing Table: 81 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 170 Number of AfriNIC addresses announced to Internet: 44741888 Equivalent to 2 /8s, 170 /16s and 181 /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 13320 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 1875 118 437 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1709 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1054 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 908 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 891 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 759 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 654 1159 154 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 14061 38738 5432 AMAZON-02, US 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3145 54729 2396 DNIC-AS-00749, US 36352 2421 200 1147 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN, US 367 1784 1818 814 DNIC-ASBLK-00306-00371, US 209 1640 4882 263 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 1246 96 1013 AKAMAI-ASN1, NL 25019 1146 1335 138 SAUDINETSTC-AS, SA 34984 993 161 746 TELLCOM-AS, TR 8452 908 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 704 49 619 CDNEXT, GB 203020 589 114 338 HOSTROYALE, IN 51167 565 113 248 CONTABO, DE 8376 552 53 25 Jordan Data Communications, JO 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 7314 1928 784 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1536 217 1148 Telmex Colombia S.A., CO 11664 1366 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1256 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 12252 682 164 24 America Movil Peru S.A.C., PE 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 1439 463 90 RAYA-AS, EG 37069 1079 1084 13 MOBINIL, EG 24863 944 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 576 82 3 KENET-AS, KE 36935 509 135 138 Vodafone-, EG 36903 483 226 330 MT-MPLS, MA 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 386 869 246 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 14061 38738 5432 AMAZON-02, US 9808 13320 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7314 1928 784 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4776 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3145 54729 2396 DNIC-AS-00749, US 36352 2421 200 1147 AS-COLOCROSSING, US 11830 1991 369 65 Instituto Costarricense de Electricidad y 6167 1974 4173 531 CELLCO-PART, US 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 13320 13200 CHINAMOBILE-CN China Mobile Communications Grou 8151 7314 6530 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4776 4412 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3354 3159 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 11776 1904 1691 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1709 1659 CMNET-HUNAN-AP China Mobile communications corp 6167 1974 1443 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 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 /10:31 /11:51 /12:159 /13:213 /14:574 /15:1066 /16:7498 /17:3483 /18:4166 /19:7673 /20:13074 /21:16123 /22:28651 /23:29538 /24:175964 /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 4007 7314 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4776 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2494 14061 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1053 1366 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1477 BRIGHTSPEED, US 36352 1016 2421 AS-COLOCROSSING, US 209 954 1640 CENTURYLINK-US-LEGACY-QWEST, US 10620 921 1536 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:49 2:460 3:969 4:5 5:1193 6:171 7:5 8:634 9:5 11:172 12:880 13:567 14:179 15:360 16:178 17:3 18:910 20:203 21:4 22:188 23:2852 24:663 27:59 29:19 31:522 32:13 34:6 35:182 36:3311 37:657 38:2329 39:828 40:251 41:1100 42:23 43:206 44:30 45:4499 46:931 47:160 49:18 50:483 51:523 52:1078 54:228 55:1121 56:11 57:31 58:69 59:46 60:74 61:60 62:593 63:723 64:2198 65:998 66:2352 67:1117 68:497 69:1226 70:440 71:156 72:701 74:975 75:293 76:236 77:419 78:569 79:245 80:345 81:382 82:834 83:209 84:343 85:642 86:233 87:205 88:279 89:645 90:100 91:931 92:679 93:958 94:984 95:1317 96:296 97:45 98:390 99:273 100:22 101:25 102:531 103:1293 104:1739 105:155 106:8 107:1690 108:521 109:384 110:94 111:2755 112:1265 113:36 114:34 115:55 116:56 117:1503 118:72 119:87 120:1925 121:38 122:77 123:131 124:68 125:49 128:559 129:377 130:700 131:1130 132:553 133:220 134:499 135:135 136:737 137:606 138:995 139:449 140:758 141:380 142:1470 143:861 144:502 145:193 146:687 147:468 148:1033 149:729 150:227 151:876 152:817 153:282 154:2282 155:1056 156:1865 157:488 158:646 159:837 160:643 161:724 162:977 163:416 164:739 165:634 166:581 167:712 168:1465 169:160 170:1840 171:102 172:1544 173:784 174:279 175:99 176:660 177:858 178:633 179:896 180:61 181:2482 182:26 183:1612 184:435 185:3556 186:3377 187:1691 188:1047 189:1939 190:6273 191:568 192:5057 193:1733 194:1128 195:969 196:704 197:1058 198:2678 199:2468 200:4543 201:3659 202:1125 203:836 204:2200 205:1779 206:1496 207:1710 208:1714 209:1912 210:448 211:512 212:1110 213:876 214:982 215:43 216:2486 217:563 218:647 219:29 220:82 221:534 222:29 223:1665 End of report