IPv4 R&E Routing Table Report 23:05 GMT Fri 17 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: 905477 Prefixes after maximum aggregation (per Origin AS): 345145 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 446003 Number of IPv4 prefixes with a valid ROA: 374139 Number of IPv4 prefixes with an invalid ROA: 1547 Number of IPv4 prefixes with no ROA: 529791 Total ASes present in the Internet Routing Table: 73942 Prefixes per ASN: 12.25 Origin-only ASes present in the Internet Routing Table: 63502 Origin ASes announcing only one prefix: 26080 Transit ASes present in the Internet Routing Table: 10440 Transit-only ASes present in the Internet Routing Table: 437 Paths with bogon ASNs present in the IPv4 Routing Table: 26 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: 1062 Number of instances of unregistered ASNs: 1072 Number of 32-bit ASNs allocated by the RIRs: 41202 Number of 32-bit ASNs visible in the Routing Table: 34111 Prefixes from 32-bit ASNs in the Routing Table: 166798 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 581 Number of addresses announced to Internet: 3061792000 Equivalent to 182 /8s, 127 /16s and 61 /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: 304887 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234361 Total APNIC prefixes after maximum aggregation: 68274 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 229289 Unique aggregates announced from the APNIC address blocks: 97828 APNIC Region origin ASes present in the Internet Routing Table: 13211 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3828 APNIC Region transit ASes present in the Internet Routing Table: 1774 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8545 Number of APNIC addresses announced to Internet: 773026560 Equivalent to 46 /8s, 19 /16s and 115 /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: 266344 Total ARIN prefixes after maximum aggregation: 121071 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268388 Unique aggregates announced from the ARIN address blocks: 130136 ARIN Region origin ASes present in the Internet Routing Table: 19008 ARIN Prefixes per ASN: 14.12 ARIN Region origin ASes announcing only one prefix: 6971 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: 4722 Number of ARIN addresses announced to Internet: 1285499136 Equivalent to 76 /8s, 159 /16s and 41 /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: 257161 Total RIPE prefixes after maximum aggregation: 121029 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253538 Unique aggregates announced from the RIPE address blocks: 156612 RIPE Region origin ASes present in the Internet Routing Table: 28212 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12031 RIPE Region transit ASes present in the Internet Routing Table: 3976 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11011 Number of RIPE addresses announced to Internet: 718449152 Equivalent to 42 /8s, 210 /16s and 170 /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: 117216 Total LACNIC prefixes after maximum aggregation: 28262 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 116469 Unique aggregates announced from the LACNIC address blocks: 48908 LACNIC Region origin ASes present in the Internet Routing Table: 10956 LACNIC Prefixes per ASN: 10.63 LACNIC Region origin ASes announcing only one prefix: 2655 LACNIC Region transit ASes present in the Internet Routing Table: 2265 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: 8771 Number of LACNIC addresses announced to Internet: 176393216 Equivalent to 10 /8s, 131 /16s and 140 /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: 29333 Total AfriNIC prefixes after maximum aggregation: 5737 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 37212 Unique aggregates announced from the AfriNIC address blocks: 12069 AfriNIC Region origin ASes present in the Internet Routing Table: 1715 AfriNIC Prefixes per ASN: 21.70 AfriNIC Region origin ASes announcing only one prefix: 595 AfriNIC Region transit ASes present in the Internet Routing Table: 334 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: 1062 Number of AfriNIC addresses announced to Internet: 108073984 Equivalent to 6 /8s, 113 /16s and 20 /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 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5819 787 692 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3662 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3378 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2778 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2355 836 442 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2283 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2161 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 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 7958 10730 2863 AMAZON-02, US 11492 4535 300 597 CABLEONE, US 7155 3952 279 45 VIASAT-SP-BACKBONE, US 22773 3649 3063 285 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3316 1673 2421 AKAMAI-AS, US 749 3037 50571 2304 DNIC-AS-00749, US 396982 2605 3583 352 GOOGLE-CLOUD-PLATFORM, US 7018 2603 24143 1581 ATT-INTERNET4, US 30036 2555 366 365 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 7075 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4016 3399 167 AKAMAI-ASN1, NL 8551 3893 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2898 2292 911 ROSTELECOM-AS, RU 9009 2668 254 1382 M247, RO 34984 2265 359 609 TELLCOM-AS, TR 6849 2256 339 19 UKRTELNET, UA 58224 1846 949 545 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 11134 3348 587 Uninet S.A. de C.V., MX 10620 3476 507 862 Telmex Colombia S.A., CO 11830 2260 369 64 Instituto Costarricense de Electricidad 13999 2256 375 610 Mega Cable, S.A. de C.V., MX 28573 1349 2328 261 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1151 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1019 2498 45 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 1542 533 30 RAYA-AS, EG 24863 1497 393 21 LINKdotNET-AS, EG 36992 1348 1517 277 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1000 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 549 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 497 73 5 EthioNet-AS, ET 37342 488 32 1 MOVITEL, MZ 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 11134 3348 587 Uninet S.A. de C.V., MX 9808 9444 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 7958 10730 2863 AMAZON-02, US 12479 7075 1706 146 UNI2-AS, ES 7545 5819 787 692 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4535 300 597 CABLEONE, US 20940 4016 3399 167 AKAMAI-ASN1, NL 7155 3952 279 45 VIASAT-SP-BACKBONE, US 8551 3893 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 9444 9396 CHINAMOBILE-CN China Mobile Communications Grou 12479 7075 6929 UNI2-AS, ES 7545 5819 5127 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 7958 5095 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 11492 4535 3938 CABLEONE, US 7155 3952 3907 VIASAT-SP-BACKBONE, US 8551 3893 3856 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 20940 4016 3849 AKAMAI-ASN1, NL 7552 3662 3641 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 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 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, 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 /11:103 /12:299 /13:577 /14:1201 /15:2072 /16:13430 /17:8198 /18:13714 /19:24812 /20:42911 /21:50944 /22:108928 /23:96706 /24:541506 /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 6135 7075 UNI2-AS, ES 8151 5139 11134 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3451 4535 CABLEONE, US 8551 3365 3893 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3027 3952 VIASAT-SP-BACKBONE, US 22773 2704 3649 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2212 2555 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2102 2256 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1651 2:1228 3:168 4:5 5:4330 6:113 7:5 8:1514 9:1 11:172 12:1586 13:383 14:2336 15:293 16:103 17:365 18:394 20:248 21:4 22:188 23:6045 24:2485 25:4 27:2522 29:19 31:2498 32:107 34:9 35:104 36:1919 37:4628 38:4156 39:841 40:153 41:4039 42:1058 43:2311 44:298 45:16359 46:4200 47:374 49:1734 50:1830 51:383 52:1575 54:397 55:869 56:8 57:88 58:1674 59:1113 60:986 61:2461 62:2625 63:1932 64:5664 65:2319 66:4921 67:3045 68:1349 69:4145 70:1262 71:660 72:2988 74:2590 75:1458 76:603 77:2400 78:1835 79:3172 80:2087 81:1725 82:1493 83:1241 84:1496 85:2990 86:756 87:1969 88:1232 89:3610 90:609 91:7660 92:2013 93:2593 94:3526 95:3953 96:1335 97:346 98:1161 99:744 100:75 101:1295 102:2592 103:30901 104:4564 105:489 106:845 107:2527 108:910 109:4386 110:2074 111:3285 112:2040 113:1481 114:1604 115:2014 116:1880 117:2552 118:2294 119:1922 120:1738 121:1046 122:2587 123:2137 124:1561 125:2343 128:1266 129:1059 130:987 131:1975 132:826 133:411 134:1905 135:297 136:861 137:930 138:2558 139:1542 140:1178 141:1477 142:1415 143:1470 144:1208 145:347 146:1870 147:1554 148:2259 149:1897 150:867 151:1142 152:1957 153:481 154:3911 155:1417 156:1671 157:1298 158:996 159:2262 160:2538 161:1448 162:3540 163:1526 164:1580 165:1684 166:842 167:1736 168:3807 169:920 170:4561 171:883 172:3499 173:2972 174:1031 175:1161 176:3703 177:4630 178:3573 179:2145 180:2410 181:3404 182:3251 183:1935 184:2338 185:20041 186:4654 187:3944 188:4113 189:3509 190:9109 191:1444 192:10924 193:8819 194:7247 195:5107 196:3136 197:2394 198:5879 199:6084 200:7677 201:5877 202:10234 203:9989 204:4596 205:3514 206:3782 207:3382 208:4069 209:4818 210:4174 211:2386 212:4102 213:3549 214:1092 215:55 216:6596 217:2641 218:1256 219:400 220:1761 221:972 222:666 223:2120 End of report