IPv4 R&E Routing Table Report 20:15 GMT Sat 01 Nov, 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: 279636 Prefixes after maximum aggregation (per Origin AS): 118368 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 144922 Number of IPv4 prefixes with a valid ROA: 133373 Number of IPv4 prefixes with an invalid ROA: 206 Number of IPv4 prefixes with no ROA: 146057 Total ASes present in the Internet Routing Table: 20801 Prefixes per ASN: 13.44 Origin-only ASes present in the Internet Routing Table: 17917 Origin ASes announcing only one prefix: 8055 Transit ASes present in the Internet Routing Table: 2884 Transit-only ASes present in the Internet Routing Table: 720 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: 278 Number of instances of unregistered ASNs: 307 Number of 32-bit ASNs allocated by the RIRs: 47869 Number of 32-bit ASNs visible in the Routing Table: 8411 Prefixes from 32-bit ASNs in the Routing Table: 34482 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 90 Number of addresses announced to Internet: 1621568157 Equivalent to 96 /8s, 167 /16s and 42 /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: 89947 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 38650 Total APNIC prefixes after maximum aggregation: 8092 APNIC Deaggregation factor: 4.78 Prefixes being announced from the APNIC address blocks: 37477 Unique aggregates announced from the APNIC address blocks: 8032 APNIC Region origin ASes present in the Internet Routing Table: 1141 APNIC Prefixes per ASN: 32.85 APNIC Region origin ASes announcing only one prefix: 442 APNIC Region transit ASes present in the Internet Routing Table: 182 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: 526 Number of APNIC addresses announced to Internet: 163982692 Equivalent to 9 /8s, 198 /16s and 45 /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: 124904 Total ARIN prefixes after maximum aggregation: 64112 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 122737 Unique aggregates announced from the ARIN address blocks: 69447 ARIN Region origin ASes present in the Internet Routing Table: 9228 ARIN Prefixes per ASN: 13.30 ARIN Region origin ASes announcing only one prefix: 3871 ARIN Region transit ASes present in the Internet Routing Table: 848 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: 2211 Number of ARIN addresses announced to Internet: 1021903849 Equivalent to 60 /8s, 233 /16s and 3 /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: 47675 Total RIPE prefixes after maximum aggregation: 26717 RIPE Deaggregation factor: 1.78 Prefixes being announced from the RIPE address blocks: 50046 Unique aggregates announced from the RIPE address blocks: 37745 RIPE Region origin ASes present in the Internet Routing Table: 4673 RIPE Prefixes per ASN: 10.71 RIPE Region origin ASes announcing only one prefix: 1984 RIPE Region transit ASes present in the Internet Routing Table: 732 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 27 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1922 Number of RIPE addresses announced to Internet: 281166416 Equivalent to 16 /8s, 194 /16s and 66 /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: 57704 Total LACNIC prefixes after maximum aggregation: 16888 LACNIC Deaggregation factor: 3.42 Prefixes being announced from the LACNIC address blocks: 55612 Unique aggregates announced from the LACNIC address blocks: 24709 LACNIC Region origin ASes present in the Internet Routing Table: 4620 LACNIC Prefixes per ASN: 12.04 LACNIC Region origin ASes announcing only one prefix: 1651 LACNIC Region transit ASes present in the Internet Routing Table: 917 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: 3583 Number of LACNIC addresses announced to Internet: 108872960 Equivalent to 6 /8s, 125 /16s and 69 /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: 10425 Total AfriNIC prefixes after maximum aggregation: 2332 AfriNIC Deaggregation factor: 4.47 Prefixes being announced from the AfriNIC address blocks: 13674 Unique aggregates announced from the AfriNIC address blocks: 4900 AfriNIC Region origin ASes present in the Internet Routing Table: 296 AfriNIC Prefixes per ASN: 46.20 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 79 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 169 Number of AfriNIC addresses announced to Internet: 45539072 Equivalent to 2 /8s, 182 /16s and 223 /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 13189 8729 119 CHINAMOBILE-CN China Mobile Communication 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 56041 1731 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1717 192 50 CMNET-HUNAN-AP China Mobile communication 24444 960 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 871 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 701 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 660 247 353 CMNET-JIANGXI-AP China Mobile communicati 2907 611 2169 463 SINET-AS Research Organization of Informa 132525 591 99 30 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 14431 41087 5378 AMAZON-02, US 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 36352 2573 210 1168 AS-COLOCROSSING, US 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1856 2116 864 DNIC-ASBLK-00306-00371, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 19901 1450 702 724 BRIGHTSPEED, US 20057 1435 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 20940 1226 96 1004 AKAMAI-ASN1, NL 3215 894 4819 295 France Telecom - Orange, FR 39891 874 55 22 ALJAWWALSTC-AS, SA 8452 819 1841 16 TE-AS TE-AS, EG 212238 657 46 577 CDNEXT, GB 34984 595 92 467 TELLCOM-AS, TR 8376 568 53 25 Jordan Data Communications, JO 51167 567 113 248 CONTABO, DE 5511 528 129 445 OPENTRANSIT, FR 35819 430 427 106 MOBILY-AS Etihad Etisalat Company Mobily, 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 7457 2010 793 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1665 235 1202 Telmex Colombia S.A., CO 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1296 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1278 371 23 Telefonica del Peru S.A.A., PE 26615 1023 2486 56 TIM SA, BR 18881 906 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 652 41 197 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 1408 522 26 RAYA-AS, EG 24863 1019 389 22 LINKdotNET-AS, EG 37069 981 1096 13 MOBINIL, EG 36992 595 1085 299 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 36935 486 515 10 Vodafone-, EG 29571 481 98 67 ORANGE-COTE-IVOIRE, CI 36903 470 211 336 MT-MPLS, MA 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 14431 41087 5378 AMAZON-02, US 9808 13189 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 7457 2010 793 UNINET, MX 22773 4631 3091 402 ASN-CXA-ALL-CCI-22773-RDC, US 749 3216 54766 2467 DNIC-AS-00749, US 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2573 210 1168 AS-COLOCROSSING, US 11830 1990 369 64 Instituto Costarricense de Electricidad y 6167 1958 4060 504 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, 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 13189 13070 CHINAMOBILE-CN China Mobile Communications Grou 8151 7457 6664 UNINET, MX 22773 4631 4229 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3183 2990 CMNET-JIANGSU-AP China Mobile communications co 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1717 1667 CMNET-HUNAN-AP China Mobile communications corp 56041 1731 1653 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1958 1454 CELLCO-PART, US 36352 2573 1405 AS-COLOCROSSING, 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 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 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 23.140.216.0/24 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 23.178.24.0/24 Origin: 53850 GORILLASERVERS, US 23.178.24.0/24 Transit: 3257 GTT-BACKBONE GTT, US 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 327924 EXCELSIMO-NETWORKS, NG 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 /11:52 /12:156 /13:215 /14:585 /15:1102 /16:7587 /17:3404 /18:4096 /19:7667 /20:12552 /21:16020 /22:28876 /23:29098 /24:167932 /25:64 /26:81 /27:49 /28:18 /29:7 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4053 7457 UNINET, MX 22773 2985 4631 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2435 14431 AMAZON-02, US 11830 1694 1990 Instituto Costarricense de Electricidad y Telecom., CR 19901 1061 1450 BRIGHTSPEED, US 36352 1035 2573 AS-COLOCROSSING, US 10620 996 1665 Telmex Colombia S.A., CO 11664 971 1296 Techtel LMDS Comunicaciones Interactivas S.A., AR 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 884 1908 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:32 2:355 3:964 4:5 5:731 6:158 7:5 8:619 9:5 11:171 12:884 13:491 14:173 15:343 16:278 17:3 18:903 20:199 21:4 22:188 23:2666 24:597 27:57 29:19 31:523 32:13 34:9 35:186 36:3226 37:603 38:2587 39:752 40:91 41:1009 42:146 43:200 44:26 45:4456 46:940 47:146 49:21 50:477 51:390 52:1456 54:350 55:1092 56:11 57:31 58:17 59:34 60:91 61:61 62:562 63:736 64:1961 65:1025 66:2262 67:1117 68:494 69:1196 70:441 71:171 72:734 74:1002 75:304 76:235 77:426 78:363 79:283 80:351 81:451 82:789 83:210 84:342 85:670 86:243 87:252 88:288 89:695 90:105 91:925 92:693 93:455 94:914 95:500 96:266 97:48 98:405 99:251 100:22 101:20 102:438 103:1059 104:1588 105:174 106:67 107:1693 108:521 109:374 110:92 111:2509 112:1146 113:32 114:39 115:63 116:54 117:1398 118:81 119:89 120:1690 121:32 122:61 123:176 124:85 125:23 128:575 129:374 130:663 131:1083 132:568 133:221 134:506 135:124 136:674 137:488 138:1027 139:441 140:734 141:373 142:1169 143:901 144:424 145:148 146:652 147:456 148:984 149:723 150:206 151:801 152:748 153:181 154:1143 155:952 156:1213 157:440 158:594 159:784 160:614 161:709 162:1004 163:437 164:769 165:605 166:601 167:683 168:1492 169:154 170:1907 171:103 172:1304 173:812 174:286 175:105 176:427 177:1011 178:658 179:923 180:34 181:2449 182:29 183:1508 184:452 185:3476 186:3288 187:1694 188:825 189:1870 190:6377 191:556 192:5118 193:1754 194:1137 195:966 196:669 197:1091 198:2697 199:2484 200:4451 201:3709 202:993 203:774 204:2164 205:1813 206:1506 207:1720 208:1534 209:1925 210:364 211:502 212:1002 213:747 214:952 215:40 216:2512 217:483 218:658 219:18 220:87 221:484 222:24 223:1537 End of report