IPv4 R&E Routing Table Report 20:15 GMT Tue 30 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: 290207 Prefixes after maximum aggregation (per Origin AS): 119781 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 150275 Number of IPv4 prefixes with a valid ROA: 147797 Number of IPv4 prefixes with an invalid ROA: 200 Number of IPv4 prefixes with no ROA: 142210 Total ASes present in the Internet Routing Table: 20813 Prefixes per ASN: 13.94 Origin-only ASes present in the Internet Routing Table: 17926 Origin ASes announcing only one prefix: 8050 Transit ASes present in the Internet Routing Table: 2887 Transit-only ASes present in the Internet Routing Table: 744 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: 48328 Number of 32-bit ASNs visible in the Routing Table: 8468 Prefixes from 32-bit ASNs in the Routing Table: 34696 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: 133 Number of addresses announced to Internet: 1620079813 Equivalent to 96 /8s, 144 /16s and 116 /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: 94104 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42651 Total APNIC prefixes after maximum aggregation: 8840 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 39249 Unique aggregates announced from the APNIC address blocks: 8878 APNIC Region origin ASes present in the Internet Routing Table: 1309 APNIC Prefixes per ASN: 29.98 APNIC Region origin ASes announcing only one prefix: 539 APNIC Region transit ASes present in the Internet Routing Table: 219 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 24 Number of APNIC region 32-bit ASNs visible in the Routing Table: 642 Number of APNIC addresses announced to Internet: 169040492 Equivalent to 10 /8s, 19 /16s and 90 /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: 126540 Total ARIN prefixes after maximum aggregation: 65228 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124458 Unique aggregates announced from the ARIN address blocks: 71099 ARIN Region origin ASes present in the Internet Routing Table: 9213 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3825 ARIN Region transit ASes present in the Internet Routing Table: 867 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: 1012566313 Equivalent to 60 /8s, 90 /16s and 137 /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: 51871 Total RIPE prefixes after maximum aggregation: 26149 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 54348 Unique aggregates announced from the RIPE address blocks: 37476 RIPE Region origin ASes present in the Internet Routing Table: 4563 RIPE Prefixes per ASN: 11.91 RIPE Region origin ASes announcing only one prefix: 1943 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1924 Number of RIPE addresses announced to Internet: 285178320 Equivalent to 16 /8s, 255 /16s and 121 /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: 57981 Total LACNIC prefixes after maximum aggregation: 16783 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 55790 Unique aggregates announced from the LACNIC address blocks: 24772 LACNIC Region origin ASes present in the Internet Routing Table: 4533 LACNIC Prefixes per ASN: 12.31 LACNIC Region origin ASes announcing only one prefix: 1612 LACNIC Region transit ASes present in the Internet Routing Table: 877 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: 3510 Number of LACNIC addresses announced to Internet: 108040288 Equivalent to 6 /8s, 112 /16s and 144 /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: 10903 Total AfriNIC prefixes after maximum aggregation: 2576 AfriNIC Deaggregation factor: 4.23 Prefixes being announced from the AfriNIC address blocks: 16229 Unique aggregates announced from the AfriNIC address blocks: 7923 AfriNIC Region origin ASes present in the Internet Routing Table: 336 AfriNIC Prefixes per ASN: 48.30 AfriNIC Region origin ASes announcing only one prefix: 131 AfriNIC Region transit ASes present in the Internet Routing Table: 91 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 196 Number of AfriNIC addresses announced to Internet: 45101056 Equivalent to 2 /8s, 176 /16s and 48 /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 13232 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3335 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2212 139 503 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 655 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 14001 38461 5445 AMAZON-02, US 22773 4744 3097 373 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2416 200 1145 AS-COLOCROSSING, US 6167 1972 4172 531 CELLCO-PART, US 11776 1908 259 213 ATLANTICBB-JOHNSTOWN, US 367 1801 1885 816 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 4901 302 70 ALJAWWALSTC-AS, SA 20940 1278 98 1034 AKAMAI-ASN1, NL 25019 1142 1335 138 SAUDINETSTC-AS, SA 34984 995 161 746 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 853 1841 16 TE-AS TE-AS, EG 212238 700 49 617 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 556 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 7337 1919 773 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1592 224 1174 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 694 43 199 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 29571 587 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 557 82 3 KENET-AS, KE 36903 507 235 347 MT-MPLS, MA 36935 497 131 133 Vodafone-, EG 36992 468 944 267 ETISALAT-MISR, EG 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 14001 38461 5445 AMAZON-02, US 9808 13232 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7337 1919 773 UNINET, MX 39891 4901 302 70 ALJAWWALSTC-AS, SA 22773 4744 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 2416 200 1145 AS-COLOCROSSING, US 17561 2212 139 503 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 13232 13113 CHINAMOBILE-CN China Mobile Communications Grou 8151 7337 6564 UNINET, MX 39891 4901 4831 ALJAWWALSTC-AS, SA 22773 4744 4371 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 2212 1709 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 /15:1068 /16:7483 /17:3495 /18:4174 /19:7659 /20:13266 /21:16330 /22:28797 /23:29833 /24:176806 /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 7337 UNINET, MX 39891 3587 4901 ALJAWWALSTC-AS, SA 22773 3052 4744 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2454 14001 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 1015 2416 AS-COLOCROSSING, US 10620 960 1592 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 2:474 3:973 4:5 5:1181 6:174 7:5 8:636 9:5 11:172 12:889 13:543 14:178 15:360 16:250 17:3 18:907 20:201 21:4 22:188 23:2859 24:601 27:55 29:19 31:504 32:13 34:7 35:182 36:3342 37:606 38:2456 39:806 40:266 41:1120 42:28 43:219 44:28 45:4503 46:949 47:172 49:20 50:493 51:523 52:1075 54:218 55:1116 56:11 57:35 58:46 59:42 60:74 61:58 62:602 63:718 64:2143 65:1022 66:2364 67:1133 68:504 69:1209 70:439 71:155 72:710 74:993 75:301 76:238 77:412 78:545 79:258 80:347 81:419 82:853 83:212 84:343 85:603 86:238 87:198 88:282 89:652 90:105 91:945 92:677 93:971 94:999 95:1344 96:294 97:51 98:391 99:270 100:21 101:22 102:557 103:1289 104:1750 105:198 106:3 107:1677 108:526 109:370 110:93 111:2736 112:1223 113:36 114:34 115:56 116:55 117:1484 118:135 119:103 120:1768 121:39 122:74 123:112 124:69 125:50 128:576 129:385 130:698 131:1114 132:555 133:221 134:517 135:136 136:681 137:590 138:1024 139:449 140:764 141:378 142:1430 143:893 144:393 145:191 146:678 147:500 148:1021 149:734 150:284 151:866 152:817 153:275 154:2294 155:1071 156:2059 157:479 158:629 159:839 160:762 161:709 162:981 163:440 164:741 165:653 166:580 167:699 168:1492 169:169 170:1953 171:101 172:1523 173:798 174:278 175:98 176:641 177:958 178:614 179:889 180:54 181:2541 182:33 183:1558 184:448 185:3509 186:3431 187:1701 188:997 189:1925 190:6402 191:576 192:5088 193:1729 194:1132 195:1005 196:723 197:1031 198:2707 199:2464 200:4643 201:3677 202:1093 203:818 204:2222 205:1812 206:1549 207:1730 208:1716 209:1961 210:386 211:504 212:1081 213:817 214:980 215:43 216:2540 217:561 218:642 219:30 220:91 221:528 222:30 223:1635 End of report