IPv4 R&E Routing Table Report 20:15 GMT Sun 07 Sep, 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: 274594 Prefixes after maximum aggregation (per Origin AS): 116424 Deaggregation factor: 2.36 Unique aggregates announced (without unneeded subnets): 141087 Number of IPv4 prefixes with a valid ROA: 130985 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 143567 Total ASes present in the Internet Routing Table: 20353 Prefixes per ASN: 13.49 Origin-only ASes present in the Internet Routing Table: 17561 Origin ASes announcing only one prefix: 7821 Transit ASes present in the Internet Routing Table: 2792 Transit-only ASes present in the Internet Routing Table: 683 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 334 Number of instances of unregistered ASNs: 363 Number of 32-bit ASNs allocated by the RIRs: 47358 Number of 32-bit ASNs visible in the Routing Table: 8092 Prefixes from 32-bit ASNs in the Routing Table: 33395 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: 90 Number of addresses announced to Internet: 1617472261 Equivalent to 96 /8s, 104 /16s and 171 /24s Percentage of available address space announced: 43.7 Percentage of allocated address space announced: 43.7 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: 88280 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35587 Total APNIC prefixes after maximum aggregation: 7364 APNIC Deaggregation factor: 4.83 Prefixes being announced from the APNIC address blocks: 34394 Unique aggregates announced from the APNIC address blocks: 7274 APNIC Region origin ASes present in the Internet Routing Table: 1193 APNIC Prefixes per ASN: 28.83 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 195 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 563 Number of APNIC addresses announced to Internet: 162508140 Equivalent to 9 /8s, 175 /16s and 173 /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: 123394 Total ARIN prefixes after maximum aggregation: 64339 ARIN Deaggregation factor: 1.92 Prefixes being announced from the ARIN address blocks: 121142 Unique aggregates announced from the ARIN address blocks: 67573 ARIN Region origin ASes present in the Internet Routing Table: 9191 ARIN Prefixes per ASN: 13.18 ARIN Region origin ASes announcing only one prefix: 3826 ARIN Region transit ASes present in the Internet Routing Table: 857 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2157 Number of ARIN addresses announced to Internet: 1022882569 Equivalent to 60 /8s, 247 /16s and 243 /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: 47725 Total RIPE prefixes after maximum aggregation: 25614 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 49986 Unique aggregates announced from the RIPE address blocks: 36527 RIPE Region origin ASes present in the Internet Routing Table: 4437 RIPE Prefixes per ASN: 11.27 RIPE Region origin ASes announcing only one prefix: 1864 RIPE Region transit ASes present in the Internet Routing Table: 665 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 23 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1825 Number of RIPE addresses announced to Internet: 277301584 Equivalent to 16 /8s, 135 /16s and 73 /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: 56527 Total LACNIC prefixes after maximum aggregation: 16485 LACNIC Deaggregation factor: 3.43 Prefixes being announced from the LACNIC address blocks: 54662 Unique aggregates announced from the LACNIC address blocks: 24775 LACNIC Region origin ASes present in the Internet Routing Table: 4423 LACNIC Prefixes per ASN: 12.36 LACNIC Region origin ASes announcing only one prefix: 1547 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: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3390 Number of LACNIC addresses announced to Internet: 108275520 Equivalent to 6 /8s, 116 /16s and 39 /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: 11027 Total AfriNIC prefixes after maximum aggregation: 2368 AfriNIC Deaggregation factor: 4.66 Prefixes being announced from the AfriNIC address blocks: 14320 Unique aggregates announced from the AfriNIC address blocks: 4849 AfriNIC Region origin ASes present in the Internet Routing Table: 293 AfriNIC Prefixes per ASN: 48.87 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 73 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 157 Number of AfriNIC addresses announced to Internet: 46394880 Equivalent to 2 /8s, 195 /16s and 238 /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 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 828 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 609 2153 462 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 551 898 140 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 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 14322 40862 5415 AMAZON-02, US 22773 3946 3047 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 36352 2513 206 1167 AS-COLOCROSSING, US 367 2345 2617 1097 DNIC-ASBLK-00306-00371, US 6167 1931 3987 518 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1649 4885 268 CENTURYLINK-US-LEGACY-QWEST, US 20057 1429 987 110 ATT-MOBILITY-LLC-AS20057, US 7018 1426 22770 1073 ATT-INTERNET4, 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 1936 130 50 ALJAWWALSTC-AS, SA 20940 1193 93 973 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 8452 768 1841 16 TE-AS TE-AS, EG 212238 690 50 614 CDNEXT, GB 34984 643 109 504 TELLCOM-AS, TR 8376 592 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 51167 567 113 248 CONTABO, DE 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 7274 1964 783 UNINET, MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 Telmex Colombia S.A., CO 3816 1352 789 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1177 371 22 Telefonica del Peru S.A.A., PE 26615 1012 2487 55 TIM SA, BR 18881 894 1127 31 TELEFONICA BRASIL S.A, BR 11664 804 278 29 Techtel LMDS Comunicaciones Interactivas 12252 695 164 24 America Movil Peru S.A.C., PE 22884 694 43 421 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 1303 572 23 RAYA-AS, EG 29571 1036 101 60 ORANGE-COTE-IVOIRE, CI 37069 995 1096 13 MOBINIL, EG 24863 980 389 23 LINKdotNET-AS, EG 36935 638 522 42 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 571 82 3 KENET-AS, KE 36992 495 1096 222 ETISALAT-MISR, EG 36903 454 203 332 MT-MPLS, MA 2018 374 318 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 14322 40862 5415 AMAZON-02, US 9808 12721 8729 114 CHINAMOBILE-CN China Mobile Communication 8151 7274 1964 783 UNINET, MX 22773 3946 3047 314 ASN-CXA-ALL-CCI-22773-RDC, US 749 3220 54766 2471 DNIC-AS-00749, US 56046 2915 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2513 206 1167 AS-COLOCROSSING, US 367 2345 2617 1097 DNIC-ASBLK-00306-00371, US 11830 1989 369 64 Instituto Costarricense de Electricidad y 39891 1936 130 50 ALJAWWALSTC-AS, SA 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 12721 12607 CHINAMOBILE-CN China Mobile Communications Grou 8151 7274 6491 UNINET, MX 22773 3946 3632 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2915 2725 CMNET-JIANGSU-AP China Mobile communications co 11830 1989 1925 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1931 1413 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 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 396146 UNALLOCATED 8.44.213.0/24 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 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 23.140.216.0/24 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.67.248.0/22 Origin: 15964 CAMNET-AS, CM 41.67.248.0/22 Transit: 37662 WIOCC-AS, MU 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 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 /10:30 /11:52 /12:155 /13:214 /14:585 /15:1108 /16:7578 /17:3415 /18:4094 /19:7591 /20:13120 /21:15727 /22:28050 /23:28982 /24:163622 /25:67 /26:82 /27:53 /28:18 /29:8 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3930 7274 UNINET, MX 22773 2503 3946 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2411 14322 AMAZON-02, US 11830 1693 1989 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1039 1394 BRIGHTSPEED, US 36352 998 2513 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 959 1649 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:24 2:452 3:929 4:5 5:771 6:145 7:5 8:641 9:3 11:171 12:890 13:504 14:118 15:339 16:264 17:3 18:896 20:192 21:4 22:188 23:2552 24:686 27:32 29:19 31:482 32:12 34:12 35:180 36:3083 37:803 38:2459 39:635 40:93 41:1071 42:21 43:209 44:27 45:4354 46:979 47:118 49:21 50:474 51:383 52:1437 54:354 55:1104 56:11 57:24 58:17 59:33 60:31 61:53 62:525 63:776 64:1947 65:1095 66:1574 67:1072 68:361 69:1219 70:446 71:184 72:698 74:956 75:321 76:250 77:426 78:329 79:232 80:297 81:364 82:700 83:207 84:307 85:555 86:249 87:211 88:305 89:685 90:105 91:933 92:683 93:438 94:943 95:643 96:256 97:53 98:489 99:227 100:28 101:21 102:382 103:1212 104:1670 105:187 106:40 107:1549 108:527 109:396 110:52 111:2249 112:865 113:30 114:51 115:16 116:53 117:1214 118:67 119:68 120:1504 121:44 122:60 123:130 124:76 125:24 126:1 128:545 129:398 130:634 131:1087 132:568 133:221 134:477 135:121 136:685 137:496 138:1013 139:435 140:692 141:360 142:981 143:849 144:400 145:153 146:666 147:476 148:1017 149:756 150:196 151:773 152:499 153:181 154:1175 155:912 156:1247 157:437 158:582 159:726 160:898 161:681 162:1010 163:447 164:752 165:619 166:620 167:702 168:1520 169:162 170:1849 171:100 172:1312 173:811 174:361 175:91 176:470 177:952 178:585 179:910 180:40 181:2320 182:25 183:1166 184:448 185:3254 186:3154 187:1765 188:790 189:1921 190:6324 191:577 192:5161 193:1795 194:1137 195:926 196:724 197:1140 198:2711 199:2526 200:4436 201:3618 202:979 203:705 204:2191 205:1823 206:1593 207:1592 208:1555 209:1968 210:345 211:475 212:894 213:729 214:955 215:39 216:2490 217:461 218:596 219:18 220:32 221:452 222:24 223:1248 End of report