IPv4 R&E Routing Table Report 20:15 GMT Sat 03 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: 289788 Prefixes after maximum aggregation (per Origin AS): 119573 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 150214 Number of IPv4 prefixes with a valid ROA: 147653 Number of IPv4 prefixes with an invalid ROA: 201 Number of IPv4 prefixes with no ROA: 141934 Total ASes present in the Internet Routing Table: 20618 Prefixes per ASN: 14.06 Origin-only ASes present in the Internet Routing Table: 17779 Origin ASes announcing only one prefix: 8008 Transit ASes present in the Internet Routing Table: 2839 Transit-only ASes present in the Internet Routing Table: 731 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: 48311 Number of 32-bit ASNs visible in the Routing Table: 8306 Prefixes from 32-bit ASNs in the Routing Table: 33957 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: 146 Number of addresses announced to Internet: 1619998405 Equivalent to 96 /8s, 143 /16s and 54 /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: 94120 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42655 Total APNIC prefixes after maximum aggregation: 8839 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 39254 Unique aggregates announced from the APNIC address blocks: 8882 APNIC Region origin ASes present in the Internet Routing Table: 1310 APNIC Prefixes per ASN: 29.96 APNIC Region origin ASes announcing only one prefix: 542 APNIC Region transit ASes present in the Internet Routing Table: 220 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: 642 Number of APNIC addresses announced to Internet: 169031276 Equivalent to 10 /8s, 19 /16s and 54 /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: 126799 Total ARIN prefixes after maximum aggregation: 65254 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124638 Unique aggregates announced from the ARIN address blocks: 71190 ARIN Region origin ASes present in the Internet Routing Table: 9207 ARIN Prefixes per ASN: 13.54 ARIN Region origin ASes announcing only one prefix: 3829 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: 2196 Number of ARIN addresses announced to Internet: 1012802089 Equivalent to 60 /8s, 94 /16s and 34 /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: 51987 Total RIPE prefixes after maximum aggregation: 26167 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54517 Unique aggregates announced from the RIPE address blocks: 37624 RIPE Region origin ASes present in the Internet Routing Table: 4555 RIPE Prefixes per ASN: 11.97 RIPE Region origin ASes announcing only one prefix: 1936 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1916 Number of RIPE addresses announced to Internet: 285222096 Equivalent to 17 /8s, 0 /16s and 36 /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: 57295 Total LACNIC prefixes after maximum aggregation: 16520 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 55133 Unique aggregates announced from the LACNIC address blocks: 24442 LACNIC Region origin ASes present in the Internet Routing Table: 4363 LACNIC Prefixes per ASN: 12.64 LACNIC Region origin ASes announcing only one prefix: 1567 LACNIC Region transit ASes present in the Internet Routing Table: 839 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: 3357 Number of LACNIC addresses announced to Internet: 107586144 Equivalent to 6 /8s, 105 /16s and 162 /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: 10791 Total AfriNIC prefixes after maximum aggregation: 2588 AfriNIC Deaggregation factor: 4.17 Prefixes being announced from the AfriNIC address blocks: 16100 Unique aggregates announced from the AfriNIC address blocks: 7936 AfriNIC Region origin ASes present in the Internet Routing Table: 337 AfriNIC Prefixes per ASN: 47.77 AfriNIC Region origin ASes announcing only one prefix: 134 AfriNIC Region transit ASes present in the Internet Routing Table: 91 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: 195 Number of AfriNIC addresses announced to Internet: 45200128 Equivalent to 2 /8s, 177 /16s and 179 /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 13204 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 656 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 14059 38463 5425 AMAZON-02, US 22773 4746 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 1972 4172 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1805 1885 819 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1479 717 702 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 1278 98 1034 AKAMAI-ASN1, NL 25019 1145 1335 138 SAUDINETSTC-AS, SA 34984 994 161 745 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 855 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 7338 1935 775 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 1010 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 933 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 553 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 504 133 134 Vodafone-, EG 36992 449 940 266 ETISALAT-MISR, EG 29571 426 94 22 ORANGE-COTE-IVOIRE, CI 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 14059 38463 5425 AMAZON-02, US 9808 13204 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7338 1935 775 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4746 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 13204 13084 CHINAMOBILE-CN China Mobile Communications Grou 8151 7338 6563 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4746 4373 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 /16:7482 /17:3497 /18:4178 /19:7651 /20:13249 /21:16305 /22:28686 /23:29738 /24:176637 /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 4026 7338 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3054 4746 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2479 14059 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1056 1479 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 2:469 3:974 4:5 5:1179 6:174 7:5 8:639 9:5 11:172 12:889 13:559 14:177 15:360 16:250 17:3 18:906 20:201 21:4 22:188 23:2874 24:666 27:55 29:19 31:502 32:13 34:6 35:182 36:3342 37:618 38:2454 39:806 40:270 41:1094 42:29 43:216 44:28 45:4482 46:958 47:172 49:20 50:483 51:523 52:1078 54:222 55:1122 56:11 57:34 58:44 59:42 60:74 61:58 62:601 63:726 64:2141 65:1031 66:2363 67:1133 68:504 69:1211 70:444 71:155 72:709 74:995 75:301 76:235 77:414 78:559 79:258 80:345 81:418 82:846 83:206 84:344 85:630 86:238 87:197 88:282 89:652 90:105 91:941 92:664 93:950 94:984 95:1339 96:290 97:51 98:390 99:277 100:21 101:22 102:581 103:1301 104:1747 105:198 106:3 107:1688 108:525 109:380 110:93 111:2735 112:1223 113:36 114:37 115:56 116:56 117:1484 118:135 119:87 120:1768 121:39 122:75 123:112 124:69 125:50 128:572 129:386 130:707 131:1108 132:551 133:221 134:519 135:136 136:674 137:591 138:992 139:448 140:764 141:376 142:1436 143:868 144:393 145:191 146:692 147:475 148:1022 149:730 150:287 151:865 152:820 153:277 154:2274 155:1075 156:2058 157:486 158:629 159:838 160:648 161:691 162:973 163:439 164:739 165:650 166:580 167:699 168:1478 169:171 170:1923 171:101 172:1526 173:799 174:278 175:100 176:652 177:901 178:624 179:892 180:53 181:2523 182:31 183:1558 184:450 185:3523 186:3429 187:1674 188:1055 189:1884 190:6397 191:572 192:5086 193:1734 194:1129 195:1001 196:707 197:1038 198:2705 199:2468 200:4619 201:3712 202:1090 203:814 204:2215 205:1802 206:1556 207:1744 208:1715 209:1959 210:384 211:504 212:1115 213:860 214:977 215:43 216:2536 217:558 218:642 219:30 220:91 221:528 222:29 223:1637 End of report