IPv4 R&E Routing Table Report 20:15 GMT Sun 07 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: 290747 Prefixes after maximum aggregation (per Origin AS): 120330 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 151308 Number of IPv4 prefixes with a valid ROA: 144700 Number of IPv4 prefixes with an invalid ROA: 200 Number of IPv4 prefixes with no ROA: 145847 Total ASes present in the Internet Routing Table: 20763 Prefixes per ASN: 14.00 Origin-only ASes present in the Internet Routing Table: 17888 Origin ASes announcing only one prefix: 8053 Transit ASes present in the Internet Routing Table: 2875 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: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 265 Number of instances of unregistered ASNs: 294 Number of 32-bit ASNs allocated by the RIRs: 48170 Number of 32-bit ASNs visible in the Routing Table: 8433 Prefixes from 32-bit ASNs in the Routing Table: 34910 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: 86 Number of addresses announced to Internet: 1615724989 Equivalent to 96 /8s, 78 /16s and 1 /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: 94958 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 41900 Total APNIC prefixes after maximum aggregation: 8694 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 38473 Unique aggregates announced from the APNIC address blocks: 8634 APNIC Region origin ASes present in the Internet Routing Table: 1249 APNIC Prefixes per ASN: 30.80 APNIC Region origin ASes announcing only one prefix: 507 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: 603 Number of APNIC addresses announced to Internet: 167638628 Equivalent to 9 /8s, 253 /16s and 246 /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: 127093 Total ARIN prefixes after maximum aggregation: 65320 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 124190 Unique aggregates announced from the ARIN address blocks: 71210 ARIN Region origin ASes present in the Internet Routing Table: 9205 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3840 ARIN Region transit ASes present in the Internet Routing Table: 850 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: 2195 Number of ARIN addresses announced to Internet: 1007233321 Equivalent to 60 /8s, 9 /16s and 41 /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: 51423 Total RIPE prefixes after maximum aggregation: 25896 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54099 Unique aggregates announced from the RIPE address blocks: 37295 RIPE Region origin ASes present in the Internet Routing Table: 4568 RIPE Prefixes per ASN: 11.84 RIPE Region origin ASes announcing only one prefix: 1959 RIPE Region transit ASes present in the Internet Routing Table: 695 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: 1925 Number of RIPE addresses announced to Internet: 285248976 Equivalent to 17 /8s, 0 /16s and 141 /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: 59489 Total LACNIC prefixes after maximum aggregation: 17747 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 57597 Unique aggregates announced from the LACNIC address blocks: 26076 LACNIC Region origin ASes present in the Internet Routing Table: 4601 LACNIC Prefixes per ASN: 12.52 LACNIC Region origin ASes announcing only one prefix: 1631 LACNIC Region transit ASes present in the Internet Routing Table: 909 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 37 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3548 Number of LACNIC addresses announced to Internet: 110461024 Equivalent to 6 /8s, 149 /16s and 128 /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: 10577 Total AfriNIC prefixes after maximum aggregation: 2455 AfriNIC Deaggregation factor: 4.31 Prefixes being announced from the AfriNIC address blocks: 16302 Unique aggregates announced from the AfriNIC address blocks: 8008 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 55.83 AfriNIC Region origin ASes announcing only one prefix: 116 AfriNIC Region transit ASes present in the Internet Routing Table: 82 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: 162 Number of AfriNIC addresses announced to Internet: 45106944 Equivalent to 2 /8s, 176 /16s and 71 /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 13116 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3276 828 194 CMNET-JIANGSU-AP China Mobile communicati 17561 2386 150 558 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 884 480 53 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 2907 602 2169 463 SINET-AS Research Organization of Informa 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 14280 37210 5406 AMAZON-02, US 22773 4773 3099 370 ASN-CXA-ALL-CCI-22773-RDC, US 749 3208 54760 2459 DNIC-AS-00749, US 36352 2536 209 1165 AS-COLOCROSSING, US 6167 1968 4170 530 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1833 1971 840 DNIC-ASBLK-00306-00371, US 209 1644 4884 265 CENTURYLINK-US-LEGACY-QWEST, US 19901 1456 711 717 BRIGHTSPEED, US 20057 1436 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 1199 93 984 AKAMAI-ASN1, NL 25019 1127 1335 138 SAUDINETSTC-AS, SA 3215 895 4819 296 France Telecom - Orange, FR 8452 871 1841 16 TE-AS TE-AS, EG 34984 859 129 663 TELLCOM-AS, TR 212238 696 49 612 CDNEXT, GB 8376 567 53 24 Jordan Data Communications, JO 51167 565 113 248 CONTABO, DE 5511 535 130 452 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 7395 1962 785 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1649 234 1195 Telmex Colombia S.A., CO 11664 1356 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1347 779 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1262 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2486 56 TIM SA, BR 18881 901 1127 31 TELEFONICA BRASIL S.A, BR 13999 804 113 380 Mega Cable, S.A. de C.V., MX 12252 681 164 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 1418 339 74 RAYA-AS, EG 24863 1050 389 22 LINKdotNET-AS, EG 37069 901 1096 13 MOBINIL, EG 36992 611 1105 289 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 561 82 3 KENET-AS, KE 36935 499 127 129 Vodafone-, EG 36903 470 211 336 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 14280 37210 5406 AMAZON-02, US 9808 13116 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7395 1962 785 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4773 3099 370 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3276 828 194 CMNET-JIANGSU-AP China Mobile communicati 749 3208 54760 2459 DNIC-AS-00749, US 36352 2536 209 1165 AS-COLOCROSSING, US 17561 2386 150 558 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 13116 12996 CHINAMOBILE-CN China Mobile Communications Grou 8151 7395 6610 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4773 4403 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3276 3082 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 17561 2386 1828 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 /10:32 /11:51 /12:156 /13:214 /14:582 /15:1068 /16:7486 /17:3460 /18:4165 /19:7714 /20:13048 /21:16446 /22:29078 /23:29780 /24:177210 /25:60 /26:83 /27:50 /28:18 /29:6 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4056 7395 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 3048 4773 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2434 14280 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1062 1456 BRIGHTSPEED, US 11664 1031 1356 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1008 2536 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 2:484 3:973 4:5 5:1187 6:177 7:5 8:623 9:5 11:171 12:883 13:513 14:177 15:356 16:278 17:3 18:906 20:202 21:4 22:188 23:2775 24:608 27:63 29:19 31:506 32:13 34:6 35:182 36:3316 37:683 38:2557 39:776 40:268 41:1015 42:27 43:225 44:27 45:4593 46:961 47:161 49:19 50:504 51:518 52:1394 54:282 55:1099 56:11 57:31 58:19 59:42 60:74 61:59 62:586 63:719 64:2133 65:1016 66:2429 67:1114 68:489 69:1220 70:433 71:160 72:718 74:988 75:305 76:240 77:459 78:552 79:262 80:357 81:412 82:843 83:202 84:368 85:580 86:240 87:195 88:282 89:650 90:103 91:941 92:680 93:963 94:952 95:1319 96:308 97:52 98:404 99:262 100:21 101:21 102:515 103:1203 104:1728 105:193 107:1710 108:528 109:372 110:91 111:2614 112:1188 113:31 114:34 115:56 116:66 117:1456 118:71 119:88 120:1723 121:36 122:75 123:109 124:68 125:49 128:560 129:384 130:689 131:1119 132:562 133:221 134:520 135:132 136:686 137:501 138:1031 139:446 140:711 141:375 142:1329 143:902 144:416 145:193 146:669 147:506 148:1082 149:733 150:281 151:865 152:767 153:245 154:2391 155:1062 156:2146 157:452 158:640 159:827 160:623 161:708 162:1004 163:426 164:767 165:618 166:578 167:702 168:1539 169:170 170:1953 171:102 172:1558 173:792 174:273 175:97 176:618 177:1214 178:607 179:913 180:44 181:2441 182:29 183:1535 184:438 185:3520 186:3195 187:2021 188:915 189:2298 190:6432 191:585 192:5094 193:1725 194:1149 195:968 196:771 197:1092 198:2687 199:2488 200:4615 201:4194 202:1066 203:803 204:2181 205:1836 206:1518 207:1748 208:1587 209:1945 210:406 211:500 212:1066 213:781 214:943 215:42 216:2448 217:534 218:635 219:29 220:79 221:517 222:29 223:1591 End of report