IPv4 R&E Routing Table Report 20:15 GMT Sun 18 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: 288776 Prefixes after maximum aggregation (per Origin AS): 119208 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149214 Number of IPv4 prefixes with a valid ROA: 147101 Number of IPv4 prefixes with an invalid ROA: 205 Number of IPv4 prefixes with no ROA: 141470 Total ASes present in the Internet Routing Table: 20536 Prefixes per ASN: 14.06 Origin-only ASes present in the Internet Routing Table: 17712 Origin ASes announcing only one prefix: 7990 Transit ASes present in the Internet Routing Table: 2824 Transit-only ASes present in the Internet Routing Table: 721 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: 35 Max AS path prepend of ASN (273113) 30 Prefixes from unregistered ASNs in the Routing Table: 246 Number of instances of unregistered ASNs: 275 Number of 32-bit ASNs allocated by the RIRs: 48432 Number of 32-bit ASNs visible in the Routing Table: 8311 Prefixes from 32-bit ASNs in the Routing Table: 34258 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: 105 Number of addresses announced to Internet: 1613327813 Equivalent to 96 /8s, 41 /16s and 109 /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: 93895 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42762 Total APNIC prefixes after maximum aggregation: 8905 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 39716 Unique aggregates announced from the APNIC address blocks: 9070 APNIC Region origin ASes present in the Internet Routing Table: 1336 APNIC Prefixes per ASN: 29.73 APNIC Region origin ASes announcing only one prefix: 565 APNIC Region transit ASes present in the Internet Routing Table: 230 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: 654 Number of APNIC addresses announced to Internet: 170994284 Equivalent to 10 /8s, 49 /16s and 42 /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: 125772 Total ARIN prefixes after maximum aggregation: 64747 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123666 Unique aggregates announced from the ARIN address blocks: 70489 ARIN Region origin ASes present in the Internet Routing Table: 9115 ARIN Prefixes per ASN: 13.57 ARIN Region origin ASes announcing only one prefix: 3787 ARIN Region transit ASes present in the Internet Routing Table: 856 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: 2183 Number of ARIN addresses announced to Internet: 1008660009 Equivalent to 60 /8s, 30 /16s and 238 /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: 52287 Total RIPE prefixes after maximum aggregation: 26443 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54862 Unique aggregates announced from the RIPE address blocks: 37997 RIPE Region origin ASes present in the Internet Routing Table: 4539 RIPE Prefixes per ASN: 12.09 RIPE Region origin ASes announcing only one prefix: 1931 RIPE Region transit ASes present in the Internet Routing Table: 690 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1905 Number of RIPE addresses announced to Internet: 280890064 Equivalent to 16 /8s, 190 /16s and 10 /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: 56939 Total LACNIC prefixes after maximum aggregation: 16392 LACNIC Deaggregation factor: 3.47 Prefixes being announced from the LACNIC address blocks: 54792 Unique aggregates announced from the LACNIC address blocks: 24232 LACNIC Region origin ASes present in the Internet Routing Table: 4398 LACNIC Prefixes per ASN: 12.46 LACNIC Region origin ASes announcing only one prefix: 1584 LACNIC Region transit ASes present in the Internet Routing Table: 848 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: 3389 Number of LACNIC addresses announced to Internet: 107762528 Equivalent to 6 /8s, 108 /16s and 83 /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: 10770 Total AfriNIC prefixes after maximum aggregation: 2527 AfriNIC Deaggregation factor: 4.26 Prefixes being announced from the AfriNIC address blocks: 15635 Unique aggregates announced from the AfriNIC address blocks: 7331 AfriNIC Region origin ASes present in the Internet Routing Table: 313 AfriNIC Prefixes per ASN: 49.95 AfriNIC Region origin ASes announcing only one prefix: 123 AfriNIC Region transit ASes present in the Internet Routing Table: 83 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: 180 Number of AfriNIC addresses announced to Internet: 44876800 Equivalent to 2 /8s, 172 /16s and 196 /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 13321 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 14022 38705 5429 AMAZON-02, US 22773 4494 3081 298 ASN-CXA-ALL-CCI-22773-RDC, US 749 3145 54729 2396 DNIC-AS-00749, US 36352 2419 200 1147 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1904 259 213 ATLANTICBB-JOHNSTOWN, US 367 1790 1812 819 DNIC-ASBLK-00306-00371, US 209 1639 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 1247 96 1014 AKAMAI-ASN1, NL 25019 1143 1335 138 SAUDINETSTC-AS, SA 34984 984 151 739 TELLCOM-AS, TR 8452 907 1841 17 TE-AS TE-AS, EG 3215 900 4820 300 France Telecom - Orange, FR 212238 704 49 619 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 549 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 7322 1932 784 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1535 217 1148 Telmex Colombia S.A., CO 11664 1367 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1257 371 22 Telefonica del Peru S.A.A., PE 26615 1011 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 1071 1084 13 MOBINIL, EG 24863 946 389 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 493 132 140 Vodafone-, EG 29571 422 78 20 ORANGE-COTE-IVOIRE, CI 36992 408 895 252 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 14022 38705 5429 AMAZON-02, US 9808 13321 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7322 1932 784 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4494 3081 298 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 2419 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 13321 13201 CHINAMOBILE-CN China Mobile Communications Grou 8151 7322 6538 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4494 4196 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 /14:576 /15:1065 /16:7501 /17:3490 /18:4178 /19:7676 /20:13168 /21:16245 /22:28653 /23:29519 /24:175992 /25:61 /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 4014 7322 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3050 4494 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2485 14022 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 11664 1054 1367 Techtel LMDS Comunicaciones Interactivas S.A., AR 19901 1052 1477 BRIGHTSPEED, US 36352 1015 2419 AS-COLOCROSSING, US 209 953 1639 CENTURYLINK-US-LEGACY-QWEST, US 10620 920 1535 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 2:467 3:971 4:5 5:1193 6:172 7:5 8:634 9:5 11:172 12:880 13:563 14:179 15:360 16:154 17:3 18:910 20:204 21:4 22:188 23:2844 24:660 27:55 29:19 31:527 32:13 34:7 35:182 36:3312 37:644 38:2329 39:828 40:251 41:1136 42:23 43:204 44:29 45:4387 46:929 47:167 48:20 49:18 50:482 51:521 52:1078 54:228 55:1068 56:11 57:31 58:45 59:42 60:74 61:60 62:604 63:721 64:2195 65:995 66:2347 67:1120 68:494 69:1218 70:439 71:157 72:702 74:977 75:293 76:238 77:413 78:573 79:238 80:355 81:392 82:844 83:209 84:320 85:643 86:237 87:209 88:281 89:645 90:100 91:965 92:681 93:960 94:988 95:1314 96:288 97:45 98:390 99:270 100:22 101:25 102:584 103:1294 104:1707 105:154 106:4 107:1683 108:520 109:368 110:94 111:2754 112:1265 113:34 114:34 115:55 116:56 117:1503 118:72 119:87 120:1926 121:37 122:77 123:131 124:69 125:48 128:561 129:374 130:723 131:1126 132:550 133:220 134:498 135:147 136:736 137:609 138:1030 139:446 140:759 141:380 142:1467 143:855 144:501 145:193 146:683 147:468 148:1000 149:719 150:227 151:875 152:836 153:282 154:2271 155:1071 156:1776 157:490 158:647 159:839 160:638 161:722 162:975 163:416 164:741 165:650 166:581 167:712 168:1462 169:166 170:1849 171:101 172:1541 173:784 174:279 175:101 176:656 177:867 178:627 179:897 180:45 181:2485 182:24 183:1611 184:443 185:3547 186:3419 187:1698 188:1052 189:1943 190:6376 191:569 192:5059 193:1732 194:1142 195:974 196:707 197:1064 198:2669 199:2455 200:4641 201:3669 202:1125 203:829 204:2192 205:1771 206:1493 207:1709 208:1711 209:1913 210:439 211:512 212:1122 213:876 214:970 215:43 216:2485 217:562 218:647 219:29 220:82 221:534 222:29 223:1666 End of report