IPv4 R&E Routing Table Report 23:05 GMT Wed 29 Mar, 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: 909248 Prefixes after maximum aggregation (per Origin AS): 345867 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447050 Number of IPv4 prefixes with a valid ROA: 381817 Number of IPv4 prefixes with an invalid ROA: 1635 Number of IPv4 prefixes with no ROA: 525796 Total ASes present in the Internet Routing Table: 74087 Prefixes per ASN: 12.27 Origin-only ASes present in the Internet Routing Table: 63625 Origin ASes announcing only one prefix: 26152 Transit ASes present in the Internet Routing Table: 10462 Transit-only ASes present in the Internet Routing Table: 440 Paths with bogon ASNs present in the IPv4 Routing Table: 52 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: 1124 Number of instances of unregistered ASNs: 1124 Number of 32-bit ASNs allocated by the RIRs: 41541 Number of 32-bit ASNs visible in the Routing Table: 34346 Prefixes from 32-bit ASNs in the Routing Table: 168539 Number of bogon 32-bit ASNs visible in the Routing Table: 55 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 532 Number of addresses announced to Internet: 3059930112 Equivalent to 182 /8s, 98 /16s and 212 /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: 305644 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236121 Total APNIC prefixes after maximum aggregation: 68340 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230842 Unique aggregates announced from the APNIC address blocks: 97986 APNIC Region origin ASes present in the Internet Routing Table: 13305 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3901 APNIC Region transit ASes present in the Internet Routing Table: 1790 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8659 Number of APNIC addresses announced to Internet: 773190656 Equivalent to 46 /8s, 21 /16s and 244 /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: 267198 Total ARIN prefixes after maximum aggregation: 121323 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269532 Unique aggregates announced from the ARIN address blocks: 130302 ARIN Region origin ASes present in the Internet Routing Table: 19017 ARIN Prefixes per ASN: 14.17 ARIN Region origin ASes announcing only one prefix: 6975 ARIN Region transit ASes present in the Internet Routing Table: 1886 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4755 Number of ARIN addresses announced to Internet: 1285304320 Equivalent to 76 /8s, 156 /16s and 48 /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: 258373 Total RIPE prefixes after maximum aggregation: 121656 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254401 Unique aggregates announced from the RIPE address blocks: 157282 RIPE Region origin ASes present in the Internet Routing Table: 28258 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12028 RIPE Region transit ASes present in the Internet Routing Table: 3981 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: 11095 Number of RIPE addresses announced to Internet: 718073088 Equivalent to 42 /8s, 204 /16s and 237 /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: 117341 Total LACNIC prefixes after maximum aggregation: 28169 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116687 Unique aggregates announced from the LACNIC address blocks: 49062 LACNIC Region origin ASes present in the Internet Routing Table: 10960 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2648 LACNIC Region transit ASes present in the Internet Routing Table: 2279 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8761 Number of LACNIC addresses announced to Internet: 176615680 Equivalent to 10 /8s, 134 /16s and 241 /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: 29091 Total AfriNIC prefixes after maximum aggregation: 5600 AfriNIC Deaggregation factor: 5.19 Prefixes being announced from the AfriNIC address blocks: 37254 Unique aggregates announced from the AfriNIC address blocks: 12019 AfriNIC Region origin ASes present in the Internet Routing Table: 1725 AfriNIC Prefixes per ASN: 21.60 AfriNIC Region origin ASes announcing only one prefix: 600 AfriNIC Region transit ASes present in the Internet Routing Table: 333 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: 1076 Number of AfriNIC addresses announced to Internet: 106363136 Equivalent to 6 /8s, 86 /16s and 249 /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 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5755 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3546 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3381 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2871 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2363 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2170 439 213 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 8146 10769 2901 AMAZON-02, US 11492 4534 300 620 CABLEONE, US 7155 3963 279 46 VIASAT-SP-BACKBONE, US 22773 3618 3063 292 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3140 1575 2330 AKAMAI-AS, US 749 3036 50520 2303 DNIC-AS-00749, US 396982 2625 3588 360 GOOGLE-CLOUD-PLATFORM, US 7018 2563 24117 1573 ATT-INTERNET4, US 30036 2500 360 502 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 7197 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4048 3399 163 AKAMAI-ASN1, NL 8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2677 253 1399 M247, RO 34984 2269 359 610 TELLCOM-AS, TR 6849 2135 339 19 UKRTELNET, UA 58224 1850 950 543 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 11196 3344 582 Uninet S.A. de C.V., MX 10620 3490 506 858 Telmex Colombia S.A., CO 13999 2303 368 609 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1329 2324 245 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1130 370 22 Telefonica del Peru S.A.A., PE 11664 1098 180 456 Techtel LMDS Comunicaciones Interactiva 26615 1029 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 1526 533 30 RAYA-AS, EG 24863 1523 393 19 LINKdotNET-AS, EG 36992 1341 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1017 67 48 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 531 54 47 WANANCHI-, KE 24757 487 73 5 EthioNet-AS, ET 37342 480 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 11196 3344 582 Uninet S.A. de C.V., MX 9808 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8146 10769 2901 AMAZON-02, US 12479 7197 1705 149 UNI2-AS, ES 7545 5755 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4534 300 620 CABLEONE, US 20940 4048 3399 163 AKAMAI-ASN1, NL 7155 3963 279 46 VIASAT-SP-BACKBONE, US 8551 3887 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 9501 9453 CHINAMOBILE-CN China Mobile Communications Grou 12479 7197 7048 UNI2-AS, ES 16509 8146 5245 AMAZON-02, US 7545 5755 5067 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3963 3917 VIASAT-SP-BACKBONE, US 11492 4534 3914 CABLEONE, US 20940 4048 3885 AKAMAI-ASN1, NL 8551 3887 3850 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 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 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 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, 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 /13:575 /14:1194 /15:2072 /16:13430 /17:8157 /18:13710 /19:24820 /20:43025 /21:51065 /22:108773 /23:97224 /24:544725 /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 6257 7197 UNI2-AS, ES 8151 5157 11196 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3442 4534 CABLEONE, US 8551 3359 3887 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3038 3963 VIASAT-SP-BACKBONE, US 22773 2678 3618 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2157 2500 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2046 3490 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1671 2:1222 3:170 4:5 5:4460 6:121 7:6 8:1517 9:1 11:172 12:1576 13:384 14:2310 15:296 16:137 17:369 18:411 20:248 21:4 22:188 23:6138 24:2561 25:6 27:2497 29:19 31:2515 32:95 34:10 35:104 36:1926 37:4641 38:4402 39:805 40:151 41:3967 42:974 43:2307 44:310 45:16467 46:4215 47:368 49:1735 50:1824 51:563 52:1588 54:388 55:766 56:8 57:90 58:1683 59:1076 60:978 61:2465 62:2644 63:1930 64:5663 65:2311 66:4907 67:3009 68:1368 69:4126 70:1249 71:670 72:2972 74:2592 75:1463 76:610 77:2422 78:1847 79:3166 80:2081 81:1728 82:1497 83:1273 84:1518 85:3006 86:749 87:1977 88:1233 89:3608 90:609 91:7667 92:2037 93:2565 94:3594 95:3970 96:1328 97:336 98:1158 99:746 100:73 101:1298 102:2670 103:31159 104:4598 105:470 106:893 107:2558 108:984 109:4392 110:2077 111:3193 112:2055 113:1492 114:1627 115:2017 116:1904 117:2553 118:2285 119:1970 120:1746 121:1044 122:2595 123:2137 124:1577 125:2452 128:1256 129:1056 130:993 131:1990 132:831 133:423 134:1898 135:300 136:862 137:939 138:2561 139:1522 140:1221 141:1451 142:1431 143:1494 144:1162 145:348 146:1921 147:1563 148:2312 149:1952 150:870 151:1149 152:1955 153:488 154:4248 155:1416 156:1691 157:1291 158:1043 159:2270 160:2533 161:1514 162:3533 163:1496 164:1583 165:1697 166:900 167:1731 168:3852 169:932 170:4617 171:880 172:3534 173:2933 174:1015 175:1158 176:3669 177:4618 178:3633 179:2157 180:2434 181:3417 182:3329 183:1935 184:2348 185:20121 186:4680 187:3937 188:4063 189:3574 190:9128 191:1445 192:10903 193:8829 194:7280 195:5147 196:3147 197:2368 198:5891 199:6070 200:7750 201:5860 202:10343 203:10186 204:4622 205:3532 206:3893 207:3390 208:4065 209:4864 210:4177 211:2403 212:4099 213:3523 214:1084 215:60 216:6618 217:2670 218:1270 219:411 220:1758 221:974 222:727 223:2150 End of report