IPv4 R&E Routing Table Report 20:15 GMT Sun 11 Jan, 2026 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: 289177 Prefixes after maximum aggregation (per Origin AS): 119324 Deaggregation factor: 2.42 Unique aggregates announced (without unneeded subnets): 149876 Number of IPv4 prefixes with a valid ROA: 147070 Number of IPv4 prefixes with an invalid ROA: 204 Number of IPv4 prefixes with no ROA: 141903 Total ASes present in the Internet Routing Table: 20629 Prefixes per ASN: 14.02 Origin-only ASes present in the Internet Routing Table: 17781 Origin ASes announcing only one prefix: 8031 Transit ASes present in the Internet Routing Table: 2848 Transit-only ASes present in the Internet Routing Table: 735 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: 279 Number of instances of unregistered ASNs: 308 Number of 32-bit ASNs allocated by the RIRs: 48351 Number of 32-bit ASNs visible in the Routing Table: 8325 Prefixes from 32-bit ASNs in the Routing Table: 33885 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: 130 Number of addresses announced to Internet: 1621410501 Equivalent to 96 /8s, 164 /16s and 194 /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: 93552 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42970 Total APNIC prefixes after maximum aggregation: 8994 APNIC Deaggregation factor: 4.78 Prefixes being announced from the APNIC address blocks: 39619 Unique aggregates announced from the APNIC address blocks: 9216 APNIC Region origin ASes present in the Internet Routing Table: 1334 APNIC Prefixes per ASN: 29.70 APNIC Region origin ASes announcing only one prefix: 556 APNIC Region transit ASes present in the Internet Routing Table: 227 Average APNIC Region AS path length visible: 7.6 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 657 Number of APNIC addresses announced to Internet: 170809964 Equivalent to 10 /8s, 46 /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: 126796 Total ARIN prefixes after maximum aggregation: 65273 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 124508 Unique aggregates announced from the ARIN address blocks: 71143 ARIN Region origin ASes present in the Internet Routing Table: 9218 ARIN Prefixes per ASN: 13.51 ARIN Region origin ASes announcing only one prefix: 3834 ARIN Region transit ASes present in the Internet Routing Table: 861 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: 2199 Number of ARIN addresses announced to Internet: 1013116713 Equivalent to 60 /8s, 98 /16s and 239 /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: 51674 Total RIPE prefixes after maximum aggregation: 25940 RIPE Deaggregation factor: 1.99 Prefixes being announced from the RIPE address blocks: 54290 Unique aggregates announced from the RIPE address blocks: 37395 RIPE Region origin ASes present in the Internet Routing Table: 4530 RIPE Prefixes per ASN: 11.98 RIPE Region origin ASes announcing only one prefix: 1935 RIPE Region transit ASes present in the Internet Routing Table: 687 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 24 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1912 Number of RIPE addresses announced to Internet: 284749008 Equivalent to 16 /8s, 248 /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: 57014 Total LACNIC prefixes after maximum aggregation: 16399 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54853 Unique aggregates announced from the LACNIC address blocks: 24294 LACNIC Region origin ASes present in the Internet Routing Table: 4391 LACNIC Prefixes per ASN: 12.49 LACNIC Region origin ASes announcing only one prefix: 1587 LACNIC Region transit ASes present in the Internet Routing Table: 853 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: 3387 Number of LACNIC addresses announced to Internet: 107810400 Equivalent to 6 /8s, 109 /16s and 14 /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: 10444 Total AfriNIC prefixes after maximum aggregation: 2497 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 15777 Unique aggregates announced from the AfriNIC address blocks: 7708 AfriNIC Region origin ASes present in the Internet Routing Table: 301 AfriNIC Prefixes per ASN: 52.42 AfriNIC Region origin ASes announcing only one prefix: 119 AfriNIC Region transit ASes present in the Internet Routing Table: 87 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 33 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 170 Number of AfriNIC addresses announced to Internet: 44773888 Equivalent to 2 /8s, 171 /16s and 50 /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 13226 8729 120 CHINAMOBILE-CN China Mobile Communication 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 17561 2232 140 503 LCS-AS-AP LARUS Limited, HK 56041 1762 714 79 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1707 192 50 CMNET-HUNAN-AP China Mobile communication 24444 1052 500 78 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 56045 907 481 55 CMNET-JIANGXI-AP China Mobile communicati 24547 890 177 48 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24445 748 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 653 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 14142 38628 5435 AMAZON-02, US 22773 4773 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 6167 1974 4173 531 CELLCO-PART, US 11776 1907 259 213 ATLANTICBB-JOHNSTOWN, US 367 1787 1848 814 DNIC-ASBLK-00306-00371, US 209 1642 4884 264 CENTURYLINK-US-LEGACY-QWEST, US 19901 1477 724 699 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 4969 306 72 ALJAWWALSTC-AS, SA 20940 1277 98 1033 AKAMAI-ASN1, NL 25019 1146 1335 138 SAUDINETSTC-AS, SA 34984 995 161 746 TELLCOM-AS, TR 3215 898 4820 298 France Telecom - Orange, FR 8452 888 1841 16 TE-AS TE-AS, EG 212238 705 49 620 CDNEXT, GB 51167 565 113 248 CONTABO, DE 8376 553 53 25 Jordan Data Communications, JO 5511 531 98 450 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 7352 1935 776 UNINET, MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 10620 1591 224 1173 Telmex Colombia S.A., CO 11664 1365 278 31 Techtel LMDS Comunicaciones Interactivas 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1257 371 22 Telefonica del Peru S.A.A., PE 26615 1010 2486 56 TIM SA, BR 18881 904 1127 31 TELEFONICA BRASIL S.A, BR 27651 849 140 44 ENTEL CHILE S.A., CL 52468 692 43 206 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 1447 463 90 RAYA-AS, EG 37069 1079 1084 13 MOBINIL, EG 24863 928 389 16 LINKdotNET-AS, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 559 82 3 KENET-AS, KE 36903 506 235 346 MT-MPLS, MA 36935 505 131 134 Vodafone-, EG 29571 424 94 22 ORANGE-COTE-IVOIRE, CI 36992 378 876 245 ETISALAT-MISR, EG 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 14142 38628 5435 AMAZON-02, US 9808 13226 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 7352 1935 776 UNINET, MX 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4773 3099 364 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3345 832 195 CMNET-JIANGSU-AP China Mobile communicati 749 3143 54729 2394 DNIC-AS-00749, US 36352 2417 200 1145 AS-COLOCROSSING, US 17561 2232 140 503 LCS-AS-AP LARUS Limited, HK 11830 1991 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 13226 13106 CHINAMOBILE-CN China Mobile Communications Grou 8151 7352 6576 UNINET, MX 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4773 4409 ASN-CXA-ALL-CCI-22773-RDC, US 56046 3345 3150 CMNET-JIANGSU-AP China Mobile communications co 11830 1991 1926 Instituto Costarricense de Electricidad y Telec 17561 2232 1729 LCS-AS-AP LARUS Limited, HK 11776 1907 1694 ATLANTICBB-JOHNSTOWN, US 56041 1762 1683 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1707 1657 CMNET-HUNAN-AP China Mobile communications corp 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 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4, US 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3, 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 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 /10:32 /11:51 /12:159 /13:217 /14:583 /15:1070 /16:7497 /17:3501 /18:4164 /19:7659 /20:13221 /21:16173 /22:28676 /23:29541 /24:176374 /25:60 /26:82 /27:52 /28:18 /29:7 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4039 7352 UNINET, MX 39891 3655 4969 ALJAWWALSTC-AS, SA 22773 3047 4773 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2495 14142 AMAZON-02, US 11830 1695 1991 Instituto Costarricense de Electricidad y Telecom., CR 19901 1052 1477 BRIGHTSPEED, US 11664 1051 1365 Techtel LMDS Comunicaciones Interactivas S.A., AR 36352 1015 2417 AS-COLOCROSSING, US 10620 959 1591 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) ---------------------------------------------- 1:46 2:456 3:984 4:5 5:1189 6:174 7:5 8:642 9:5 11:172 12:891 13:554 14:177 15:360 16:250 17:3 18:910 20:203 21:4 22:188 23:2886 24:671 27:55 29:19 31:510 32:13 34:7 35:182 36:3308 37:614 38:2424 39:820 40:270 41:1057 42:24 43:216 44:30 45:4468 46:952 47:172 49:20 50:480 51:524 52:1078 54:226 55:1113 56:11 57:33 58:48 59:42 60:74 61:62 62:592 63:719 64:2147 65:1031 66:2359 67:1128 68:504 69:1204 70:436 71:155 72:709 74:995 75:296 76:235 77:430 78:564 79:242 80:343 81:407 82:843 83:209 84:347 85:631 86:238 87:199 88:277 89:636 90:100 91:931 92:682 93:957 94:968 95:1363 96:290 97:51 98:391 99:277 100:21 101:23 102:508 103:1303 104:1733 105:199 106:3 107:1682 108:526 109:382 110:94 111:2739 112:1265 113:37 114:34 115:55 116:55 117:1503 118:132 119:88 120:1779 121:40 122:76 123:129 124:68 125:49 128:565 129:373 130:702 131:1097 132:559 133:220 134:515 135:136 136:718 137:607 138:999 139:446 140:762 141:383 142:1441 143:869 144:386 145:193 146:690 147:477 148:1008 149:726 150:283 151:854 152:818 153:282 154:2266 155:1106 156:2056 157:494 158:645 159:845 160:637 161:688 162:978 163:417 164:735 165:626 166:578 167:704 168:1504 169:167 170:1905 171:101 172:1562 173:793 174:275 175:94 176:655 177:875 178:629 179:895 180:53 181:2502 182:24 183:1575 184:438 185:3448 186:3427 187:1689 188:1039 189:1936 190:6321 191:563 192:5099 193:1734 194:1100 195:995 196:688 197:1018 198:2705 199:2466 200:4628 201:3723 202:1122 203:837 204:2206 205:1787 206:1519 207:1732 208:1697 209:1934 210:443 211:515 212:1099 213:866 214:976 215:43 216:2527 217:556 218:644 219:29 220:83 221:529 222:29 223:1655 End of report