IPv4 R&E Routing Table Report 23:05 GMT Thu 23 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: 906093 Prefixes after maximum aggregation (per Origin AS): 345536 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 446056 Number of IPv4 prefixes with a valid ROA: 374838 Number of IPv4 prefixes with an invalid ROA: 1630 Number of IPv4 prefixes with no ROA: 529625 Total ASes present in the Internet Routing Table: 73998 Prefixes per ASN: 12.24 Origin-only ASes present in the Internet Routing Table: 63548 Origin ASes announcing only one prefix: 26094 Transit ASes present in the Internet Routing Table: 10450 Transit-only ASes present in the Internet Routing Table: 437 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: 1058 Number of instances of unregistered ASNs: 1064 Number of 32-bit ASNs allocated by the RIRs: 41252 Number of 32-bit ASNs visible in the Routing Table: 34175 Prefixes from 32-bit ASNs in the Routing Table: 167007 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 576 Number of addresses announced to Internet: 3062611456 Equivalent to 182 /8s, 139 /16s and 190 /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: 304875 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234752 Total APNIC prefixes after maximum aggregation: 68239 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229482 Unique aggregates announced from the APNIC address blocks: 97830 APNIC Region origin ASes present in the Internet Routing Table: 13234 APNIC Prefixes per ASN: 17.34 APNIC Region origin ASes announcing only one prefix: 3836 APNIC Region transit ASes present in the Internet Routing Table: 1775 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: 8572 Number of APNIC addresses announced to Internet: 773232896 Equivalent to 46 /8s, 22 /16s and 153 /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: 266515 Total ARIN prefixes after maximum aggregation: 121299 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268597 Unique aggregates announced from the ARIN address blocks: 130248 ARIN Region origin ASes present in the Internet Routing Table: 19008 ARIN Prefixes per ASN: 14.13 ARIN Region origin ASes announcing only one prefix: 6964 ARIN Region transit ASes present in the Internet Routing Table: 1890 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: 4729 Number of ARIN addresses announced to Internet: 1286283776 Equivalent to 76 /8s, 171 /16s and 34 /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: 257218 Total RIPE prefixes after maximum aggregation: 121072 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253643 Unique aggregates announced from the RIPE address blocks: 156577 RIPE Region origin ASes present in the Internet Routing Table: 28225 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12027 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 38 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11027 Number of RIPE addresses announced to Internet: 718323968 Equivalent to 42 /8s, 208 /16s and 193 /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: 117127 Total LACNIC prefixes after maximum aggregation: 28391 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 116362 Unique aggregates announced from the LACNIC address blocks: 48817 LACNIC Region origin ASes present in the Internet Routing Table: 10966 LACNIC Prefixes per ASN: 10.61 LACNIC Region origin ASes announcing only one prefix: 2670 LACNIC Region transit ASes present in the Internet Routing Table: 2274 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8777 Number of LACNIC addresses announced to Internet: 176308480 Equivalent to 10 /8s, 130 /16s and 65 /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: 29423 Total AfriNIC prefixes after maximum aggregation: 5763 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 37433 Unique aggregates announced from the AfriNIC address blocks: 12135 AfriNIC Region origin ASes present in the Internet Routing Table: 1724 AfriNIC Prefixes per ASN: 21.71 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 335 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: 1070 Number of AfriNIC addresses announced to Internet: 108114944 Equivalent to 6 /8s, 113 /16s and 180 /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 9455 8883 49 CHINAMOBILE-CN China Mobile Communicati 7545 5811 786 693 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3666 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3375 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2789 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2299 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 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 8007 10734 2895 AMAZON-02, US 11492 4514 299 642 CABLEONE, US 7155 3955 270 43 VIASAT-SP-BACKBONE, US 22773 3644 3063 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3503 1320 63 SHAW, CA 16625 3299 1654 2425 AKAMAI-AS, US 749 3035 50571 2302 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2543 24129 1546 ATT-INTERNET4, US 30036 2535 363 416 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 7076 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4037 3399 167 AKAMAI-ASN1, NL 8551 3899 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2672 254 1388 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2163 339 19 UKRTELNET, UA 58224 1846 949 546 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 11161 3346 585 Uninet S.A. de C.V., MX 10620 3372 489 1008 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2252 370 600 Mega Cable, S.A. de C.V., MX 28573 1343 2324 256 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 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1097 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1026 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 1493 393 19 LINKdotNET-AS, EG 36992 1346 1517 278 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 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 496 73 5 EthioNet-AS, ET 37342 493 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 11161 3346 585 Uninet S.A. de C.V., MX 9808 9455 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 8007 10734 2895 AMAZON-02, US 12479 7076 1706 146 UNI2-AS, ES 7545 5811 786 693 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4514 299 642 CABLEONE, US 20940 4037 3399 167 AKAMAI-ASN1, NL 7155 3955 270 43 VIASAT-SP-BACKBONE, US 8551 3899 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 9455 9406 CHINAMOBILE-CN China Mobile Communications Grou 12479 7076 6930 UNI2-AS, ES 7545 5811 5118 TPG-INTERNET-AP TPG Telecom Limited, AU 16509 8007 5112 AMAZON-02, US 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3955 3912 VIASAT-SP-BACKBONE, US 11492 4514 3872 CABLEONE, US 20940 4037 3870 AKAMAI-ASN1, NL 8551 3899 3862 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3666 3645 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 /14:1200 /15:2073 /16:13435 /17:8203 /18:13726 /19:24817 /20:42918 /21:50918 /22:108928 /23:96707 /24:542113 /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 6134 7076 UNI2-AS, ES 8151 5171 11161 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3430 4514 CABLEONE, US 8551 3371 3899 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3311 3503 SHAW, CA 7155 3032 3955 VIASAT-SP-BACKBONE, US 22773 2699 3644 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2192 2535 MEDIACOM-ENTERPRISE-BUSINESS, US 6849 2007 2163 UKRTELNET, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1652 2:1230 3:169 4:5 5:4339 6:115 7:5 8:1512 9:1 11:172 12:1584 13:392 14:2345 15:291 16:111 17:366 18:394 20:249 21:4 22:188 23:6063 24:2488 25:4 27:2518 29:19 31:2508 32:107 34:8 35:104 36:1922 37:4599 38:4205 39:860 40:153 41:4011 42:1057 43:2311 44:302 45:16346 46:4155 47:374 49:1731 50:1823 51:386 52:1581 54:396 55:864 56:8 57:88 58:1666 59:1114 60:983 61:2461 62:2627 63:1941 64:5634 65:2316 66:4901 67:3031 68:1352 69:4132 70:1272 71:662 72:2967 74:2587 75:1459 76:600 77:2398 78:1842 79:3173 80:2071 81:1728 82:1501 83:1238 84:1510 85:2992 86:756 87:1965 88:1237 89:3606 90:612 91:7665 92:2024 93:2584 94:3505 95:3948 96:1335 97:356 98:1164 99:744 100:75 101:1298 102:2629 103:30984 104:4583 105:469 106:846 107:2542 108:914 109:4392 110:2082 111:3283 112:2039 113:1489 114:1610 115:2017 116:1884 117:2555 118:2297 119:1926 120:1742 121:1044 122:2592 123:2136 124:1544 125:2348 128:1261 129:1059 130:986 131:1989 132:823 133:413 134:1906 135:294 136:862 137:943 138:2548 139:1547 140:1185 141:1470 142:1417 143:1485 144:1207 145:351 146:1887 147:1553 148:2271 149:1904 150:872 151:1145 152:1959 153:487 154:4171 155:1424 156:1671 157:1299 158:1006 159:2259 160:2553 161:1443 162:3533 163:1482 164:1579 165:1684 166:847 167:1735 168:3800 169:923 170:4562 171:883 172:3507 173:2969 174:1034 175:1158 176:3710 177:4613 178:3619 179:2205 180:2412 181:3370 182:3325 183:1935 184:2357 185:20075 186:4651 187:3946 188:4125 189:3560 190:9092 191:1450 192:10935 193:8808 194:7228 195:5102 196:3060 197:2398 198:5891 199:6089 200:7655 201:5879 202:10253 203:10002 204:4595 205:3509 206:3786 207:3382 208:4071 209:4804 210:4191 211:2386 212:4098 213:3548 214:1089 215:55 216:6588 217:2644 218:1264 219:400 220:1767 221:971 222:671 223:2109 End of report