IPv4 R&E Routing Table Report 20:15 GMT Fri 21 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: 282774 Prefixes after maximum aggregation (per Origin AS): 117725 Deaggregation factor: 2.40 Unique aggregates announced (without unneeded subnets): 146343 Number of IPv4 prefixes with a valid ROA: 136400 Number of IPv4 prefixes with an invalid ROA: 207 Number of IPv4 prefixes with no ROA: 146167 Total ASes present in the Internet Routing Table: 20512 Prefixes per ASN: 13.79 Origin-only ASes present in the Internet Routing Table: 17678 Origin ASes announcing only one prefix: 7944 Transit ASes present in the Internet Routing Table: 2834 Transit-only ASes present in the Internet Routing Table: 740 Paths with bogon ASNs present in the IPv4 Routing Table: 11 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: 276 Number of instances of unregistered ASNs: 305 Number of 32-bit ASNs allocated by the RIRs: 48018 Number of 32-bit ASNs visible in the Routing Table: 8260 Prefixes from 32-bit ASNs in the Routing Table: 33477 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 89 Number of addresses announced to Internet: 1608292349 Equivalent to 95 /8s, 220 /16s and 151 /24s Percentage of available address space announced: 43.4 Percentage of allocated address space announced: 43.4 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: 91586 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39754 Total APNIC prefixes after maximum aggregation: 8286 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 36867 Unique aggregates announced from the APNIC address blocks: 7651 APNIC Region origin ASes present in the Internet Routing Table: 1140 APNIC Prefixes per ASN: 32.34 APNIC Region origin ASes announcing only one prefix: 458 APNIC Region transit ASes present in the Internet Routing Table: 192 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: 538 Number of APNIC addresses announced to Internet: 165383524 Equivalent to 9 /8s, 219 /16s and 141 /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: 125601 Total ARIN prefixes after maximum aggregation: 64682 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 123378 Unique aggregates announced from the ARIN address blocks: 70493 ARIN Region origin ASes present in the Internet Routing Table: 9183 ARIN Prefixes per ASN: 13.44 ARIN Region origin ASes announcing only one prefix: 3808 ARIN Region transit ASes present in the Internet Routing Table: 845 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: 2194 Number of ARIN addresses announced to Internet: 1006618345 Equivalent to 59 /8s, 255 /16s and 198 /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: 50105 Total RIPE prefixes after maximum aggregation: 25244 RIPE Deaggregation factor: 1.98 Prefixes being announced from the RIPE address blocks: 52470 Unique aggregates announced from the RIPE address blocks: 36015 RIPE Region origin ASes present in the Internet Routing Table: 4522 RIPE Prefixes per ASN: 11.60 RIPE Region origin ASes announcing only one prefix: 1942 RIPE Region transit ASes present in the Internet Routing Table: 702 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1860 Number of RIPE addresses announced to Internet: 283438160 Equivalent to 16 /8s, 228 /16s and 236 /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: 56575 Total LACNIC prefixes after maximum aggregation: 16754 LACNIC Deaggregation factor: 3.38 Prefixes being announced from the LACNIC address blocks: 54477 Unique aggregates announced from the LACNIC address blocks: 24473 LACNIC Region origin ASes present in the Internet Routing Table: 4500 LACNIC Prefixes per ASN: 12.11 LACNIC Region origin ASes announcing only one prefix: 1625 LACNIC Region transit ASes present in the Internet Routing Table: 888 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: 3500 Number of LACNIC addresses announced to Internet: 107497568 Equivalent to 6 /8s, 104 /16s and 72 /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: 10463 Total AfriNIC prefixes after maximum aggregation: 2533 AfriNIC Deaggregation factor: 4.13 Prefixes being announced from the AfriNIC address blocks: 15493 Unique aggregates announced from the AfriNIC address blocks: 7623 AfriNIC Region origin ASes present in the Internet Routing Table: 303 AfriNIC Prefixes per ASN: 51.13 AfriNIC Region origin ASes announcing only one prefix: 111 AfriNIC Region transit ASes present in the Internet Routing Table: 76 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: 168 Number of AfriNIC addresses announced to Internet: 45247232 Equivalent to 2 /8s, 178 /16s and 107 /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 13201 8730 117 CHINAMOBILE-CN China Mobile Communication 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 17561 1865 117 460 LCS-AS-AP LARUS Limited, HK 56041 1731 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1715 192 50 CMNET-HUNAN-AP China Mobile communication 24444 963 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 24547 875 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 724 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 56045 660 247 353 CMNET-JIANGXI-AP China Mobile communicati 2907 610 2169 462 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 14122 37182 5368 AMAZON-02, US 22773 4724 3096 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 36352 2566 209 1166 AS-COLOCROSSING, US 6167 1943 4125 522 CELLCO-PART, US 11776 1908 259 216 ATLANTICBB-JOHNSTOWN, US 367 1859 1988 849 DNIC-ASBLK-00306-00371, US 209 1644 4884 265 CENTURYLINK-US-LEGACY-QWEST, US 19901 1453 703 722 BRIGHTSPEED, US 20057 1434 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 1213 94 998 AKAMAI-ASN1, NL 25019 1132 1335 138 SAUDINETSTC-AS, SA 3215 895 4819 296 France Telecom - Orange, FR 8452 845 1841 14 TE-AS TE-AS, EG 212238 680 48 596 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 564 53 25 Jordan Data Communications, JO 5511 528 129 445 OPENTRANSIT, FR 34984 523 86 427 TELLCOM-AS, TR 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 7019 1905 774 UNINET, MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 10620 1649 234 1195 Telmex Colombia S.A., CO 3816 1350 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1331 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1264 371 22 Telefonica del Peru S.A.A., PE 26615 1013 2486 56 TIM SA, BR 18881 914 1127 31 TELEFONICA BRASIL S.A, BR 12252 689 164 24 America Movil Peru S.A.C., PE 52468 671 42 200 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 1463 460 92 RAYA-AS, EG 37069 946 1088 21 MOBINIL, EG 24863 837 389 23 LINKdotNET-AS, EG 36992 632 1127 298 ETISALAT-MISR, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 571 82 3 KENET-AS, KE 36935 483 125 132 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 14122 37182 5368 AMAZON-02, US 9808 13201 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 7019 1905 774 UNINET, MX 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4724 3096 367 ASN-CXA-ALL-CCI-22773-RDC, US 749 3217 54766 2468 DNIC-AS-00749, US 56046 3183 827 193 CMNET-JIANGSU-AP China Mobile communicati 36352 2566 209 1166 AS-COLOCROSSING, US 11830 1992 369 65 Instituto Costarricense de Electricidad y 6167 1943 4125 522 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 13201 13084 CHINAMOBILE-CN China Mobile Communications Grou 8151 7019 6245 UNINET, MX 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4724 4357 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3183 2990 CMNET-JIANGSU-AP China Mobile communications co 11830 1992 1927 Instituto Costarricense de Electricidad y Telec 11776 1908 1692 ATLANTICBB-JOHNSTOWN, US 56047 1715 1665 CMNET-HUNAN-AP China Mobile communications corp 56041 1731 1653 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1943 1421 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 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 /12:153 /13:212 /14:580 /15:1065 /16:7448 /17:3441 /18:4151 /19:7620 /20:12728 /21:15913 /22:28377 /23:29240 /24:171503 /25:62 /26:82 /27:48 /28:18 /29:6 /30:13 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3743 7019 UNINET, MX 39891 3521 4833 ALJAWWALSTC-AS, SA 22773 3022 4724 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2417 14122 AMAZON-02, US 11830 1696 1992 Instituto Costarricense de Electricidad y Telecom., CR 19901 1062 1453 BRIGHTSPEED, US 36352 1035 2566 AS-COLOCROSSING, US 11664 1005 1331 Techtel LMDS Comunicaciones Interactivas S.A., AR 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 2:476 3:957 4:5 5:1141 6:176 7:5 8:622 9:5 11:171 12:872 13:488 14:173 15:354 16:278 17:3 18:897 20:200 21:4 22:188 23:2749 24:616 27:57 29:19 31:434 32:13 34:6 35:182 36:3237 37:642 38:2539 39:757 40:273 41:1067 42:23 43:208 44:26 45:4395 46:917 47:150 49:19 50:487 51:515 52:1392 54:280 55:1109 56:11 57:30 58:19 59:36 60:74 61:59 62:585 63:724 64:2140 65:1012 66:2338 67:1127 68:484 69:1216 70:443 71:164 72:737 74:975 75:308 76:238 77:434 78:571 79:259 80:346 81:441 82:850 83:195 84:353 85:595 86:239 87:183 88:272 89:620 90:105 91:888 92:635 93:949 94:952 95:1284 96:310 97:50 98:407 99:253 100:20 101:17 102:462 103:1055 104:1751 105:197 107:1692 108:518 109:354 110:91 111:2534 112:1140 113:27 114:34 115:55 116:48 117:1423 118:70 119:86 120:1691 121:36 122:48 123:110 124:67 125:27 128:562 129:390 130:665 131:1105 132:575 133:222 134:506 135:124 136:683 137:494 138:1013 139:438 140:719 141:376 142:1288 143:890 144:401 145:172 146:655 147:493 148:988 149:729 150:275 151:859 152:771 153:199 154:2084 155:1042 156:1871 157:445 158:632 159:814 160:611 161:709 162:991 163:434 164:759 165:613 166:578 167:685 168:1470 169:156 170:1876 171:103 172:1531 173:808 174:283 175:85 176:529 177:926 178:604 179:898 180:42 181:2436 182:24 183:1488 184:437 185:3226 186:3288 187:1616 188:881 189:1838 190:6383 191:561 192:5107 193:1731 194:1141 195:912 196:715 197:1071 198:2680 199:2491 200:4290 201:3614 202:1001 203:766 204:2165 205:1826 206:1498 207:1721 208:1543 209:1889 210:349 211:498 212:998 213:728 214:957 215:41 216:2506 217:506 218:631 219:18 220:80 221:508 222:24 223:1528 End of report