IPv4 R&E Routing Table Report 23:05 GMT Wed 01 Feb, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 903419 Prefixes after maximum aggregation (per Origin AS): 344222 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 445528 Number of IPv4 prefixes with a valid ROA: 370755 Number of IPv4 prefixes with an invalid ROA: 1516 Number of IPv4 prefixes with no ROA: 531148 Total ASes present in the Internet Routing Table: 73882 Prefixes per ASN: 12.23 Origin-only ASes present in the Internet Routing Table: 63455 Origin ASes announcing only one prefix: 26101 Transit ASes present in the Internet Routing Table: 10427 Transit-only ASes present in the Internet Routing Table: 432 Paths with bogon ASNs present in the IPv4 Routing Table: 27 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 954 Number of instances of unregistered ASNs: 963 Number of 32-bit ASNs allocated by the RIRs: 41162 Number of 32-bit ASNs visible in the Routing Table: 34031 Prefixes from 32-bit ASNs in the Routing Table: 166215 Number of bogon 32-bit ASNs visible in the Routing Table: 24 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 520 Number of addresses announced to Internet: 3061816064 Equivalent to 182 /8s, 127 /16s and 155 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 303780 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 233734 Total APNIC prefixes after maximum aggregation: 68088 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 228789 Unique aggregates announced from the APNIC address blocks: 97684 APNIC Region origin ASes present in the Internet Routing Table: 13151 APNIC Prefixes per ASN: 17.40 APNIC Region origin ASes announcing only one prefix: 3811 APNIC Region transit ASes present in the Internet Routing Table: 1765 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8481 Number of APNIC addresses announced to Internet: 773135360 Equivalent to 46 /8s, 21 /16s and 28 /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, 131072-151865 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: 265925 Total ARIN prefixes after maximum aggregation: 120880 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 267838 Unique aggregates announced from the ARIN address blocks: 129914 ARIN Region origin ASes present in the Internet Routing Table: 19009 ARIN Prefixes per ASN: 14.09 ARIN Region origin ASes announcing only one prefix: 6991 ARIN Region transit ASes present in the Internet Routing Table: 1892 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4716 Number of ARIN addresses announced to Internet: 1285624832 Equivalent to 76 /8s, 161 /16s and 20 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 256218 Total RIPE prefixes after maximum aggregation: 120481 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 252669 Unique aggregates announced from the RIPE address blocks: 156322 RIPE Region origin ASes present in the Internet Routing Table: 28196 RIPE Prefixes per ASN: 8.96 RIPE Region origin ASes announcing only one prefix: 12023 RIPE Region transit ASes present in the Internet Routing Table: 3987 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10989 Number of RIPE addresses announced to Internet: 718499328 Equivalent to 42 /8s, 211 /16s and 110 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117479 Total LACNIC prefixes after maximum aggregation: 28303 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116653 Unique aggregates announced from the LACNIC address blocks: 49158 LACNIC Region origin ASes present in the Internet Routing Table: 10999 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2270 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8779 Number of LACNIC addresses announced to Internet: 176174592 Equivalent to 10 /8s, 128 /16s and 54 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29109 Total AfriNIC prefixes after maximum aggregation: 5734 AfriNIC Deaggregation factor: 5.08 Prefixes being announced from the AfriNIC address blocks: 36950 Unique aggregates announced from the AfriNIC address blocks: 12027 AfriNIC Region origin ASes present in the Internet Routing Table: 1719 AfriNIC Prefixes per ASN: 21.50 AfriNIC Region origin ASes announcing only one prefix: 603 AfriNIC Region transit ASes present in the Internet Routing Table: 329 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1066 Number of AfriNIC addresses announced to Internet: 108062208 Equivalent to 6 /8s, 112 /16s and 230 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9439 8883 47 CHINAMOBILE-CN China Mobile Communicati 7545 5879 787 704 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3638 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3525 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3244 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2723 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2363 847 437 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2285 11250 587 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 213 TATACOMM-AS TATA Communications formerl 45090 2147 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 7892 10720 2894 AMAZON-02, US 11492 4531 300 601 CABLEONE, US 7155 3895 265 33 VIASAT-SP-BACKBONE, US 22773 3658 3065 293 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3501 1320 63 SHAW, CA 16625 3321 1681 2423 AKAMAI-AS, US 749 3021 50575 2288 DNIC-AS-00749, US 396982 2589 3496 365 GOOGLE-CLOUD-PLATFORM, US 7018 2588 24128 1570 ATT-INTERNET4, US 30036 2564 367 362 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6996 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4034 3399 169 AKAMAI-ASN1, NL 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2890 2290 908 ROSTELECOM-AS, RU 9009 2707 257 1374 M247, RO 34984 2258 358 609 TELLCOM-AS, TR 6849 2197 339 19 UKRTELNET, UA 58224 1836 945 555 TCI, IR 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11092 3342 582 Uninet S.A. de C.V., MX 10620 3479 508 859 Telmex Colombia S.A., CO 11830 2262 369 64 Instituto Costarricense de Electricidad 13999 2235 371 602 Mega Cable, S.A. de C.V., MX 28573 1353 2328 263 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1290 742 155 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1150 369 22 Telefonica del Peru S.A.A., PE 11664 1105 181 462 Techtel LMDS Comunicaciones Interactiva 26615 1017 2466 43 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1538 533 30 RAYA-AS, EG 24863 1501 393 21 LINKdotNET-AS, EG 36992 1347 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1007 67 53 ORANGE-COTE-IVOIRE, CI 36935 884 520 42 Vodafone-, EG 6713 553 1861 34 IAM-AS, MA 15399 520 54 46 WANANCHI-, KE 37342 494 32 1 MOVITEL, MZ 24757 491 73 5 EthioNet-AS, ET Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11092 3342 582 Uninet S.A. de C.V., MX 9808 9439 8883 47 CHINAMOBILE-CN China Mobile Communicati 16509 7892 10720 2894 AMAZON-02, US 12479 6996 1706 146 UNI2-AS, ES 7545 5879 787 704 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4531 300 601 CABLEONE, US 20940 4034 3399 169 AKAMAI-ASN1, NL 7155 3895 265 33 VIASAT-SP-BACKBONE, US 8551 3892 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9439 9392 CHINAMOBILE-CN China Mobile Communications Grou 12479 6996 6850 UNI2-AS, ES 7545 5879 5175 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7892 4998 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4531 3930 CABLEONE, US 20940 4034 3865 AKAMAI-ASN1, NL 7155 3895 3862 VIASAT-SP-BACKBONE, US 8551 3892 3855 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3638 3617 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 398083 UNALLOCATED 5.133.124.0/24 399587 UT, US 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.12.76.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 25674 UNALLOCATED 8.14.115.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 25674 UNALLOCATED 8.19.146.0/24 3356 LEVEL3, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:13 /10:38 /11:101 /12:295 /13:578 /14:1198 /15:2076 /16:13471 /17:8234 /18:13792 /19:24796 /20:42804 /21:50831 /22:108746 /23:96734 /24:539687 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6059 6996 UNI2-AS, ES 8151 5102 11092 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3446 4531 CABLEONE, US 8551 3364 3892 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3309 3501 SHAW, CA 7155 2984 3895 VIASAT-SP-BACKBONE, US 22773 2708 3658 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2221 2564 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2049 2197 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1627 2:1222 3:168 4:5 5:4236 6:111 7:5 8:1515 9:1 11:172 12:1588 13:376 14:2328 15:290 16:79 17:365 18:395 20:243 21:4 22:188 23:6044 24:2482 25:4 27:2597 29:19 31:2498 32:102 34:9 35:104 36:1907 37:4610 38:4046 39:836 40:154 41:3946 42:1045 43:2302 44:303 45:16392 46:4147 47:374 49:1732 50:1836 51:380 52:1552 54:395 55:858 56:8 57:80 58:1676 59:1108 60:993 61:2423 62:2611 63:1932 64:5649 65:2312 66:4902 67:3043 68:1347 69:4135 70:1252 71:659 72:2966 74:2589 75:1452 76:598 77:2399 78:1831 79:3174 80:2078 81:1702 82:1483 83:1238 84:1490 85:2984 86:746 87:1944 88:1210 89:3543 90:595 91:7645 92:1999 93:2578 94:3516 95:3931 96:1328 97:345 98:1160 99:741 100:75 101:1299 102:2564 103:30819 104:4567 105:483 106:847 107:2496 108:913 109:4373 110:2074 111:3292 112:2039 113:1472 114:1606 115:2013 116:1855 117:2556 118:2290 119:1878 120:1739 121:1051 122:2584 123:2135 124:1560 125:2272 128:1248 129:1047 130:972 131:1984 132:830 133:406 134:1901 135:297 136:865 137:926 138:2566 139:1545 140:1169 141:1465 142:1415 143:1493 144:1196 145:351 146:1855 147:1549 148:2266 149:1883 150:868 151:1138 152:1947 153:480 154:3901 155:1390 156:1655 157:1295 158:1014 159:2263 160:2547 161:1463 162:3507 163:1475 164:1600 165:1669 166:829 167:1745 168:3852 169:916 170:4572 171:881 172:3511 173:2952 174:1023 175:1165 176:3678 177:4623 178:3551 179:2151 180:2403 181:3369 182:3245 183:1937 184:2336 185:19972 186:4682 187:3932 188:4067 189:3500 190:9067 191:1440 192:10940 193:8807 194:7217 195:5105 196:3097 197:2378 198:5893 199:6086 200:7667 201:5859 202:10204 203:10014 204:4588 205:3502 206:3792 207:3354 208:4069 209:4789 210:4161 211:2387 212:4070 213:3538 214:1093 215:56 216:6590 217:2636 218:1256 219:401 220:1773 221:968 222:664 223:2054 End of report