This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 04 Oct, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1027480 Prefixes after maximum aggregation (per Origin AS): 391186 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 496018 Number of IPv4 prefixes with a valid ROA: 585581 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 441880 Total ASes present in the Internet Routing Table: 77469 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 66300 Origin ASes announcing only one prefix: 27013 Transit ASes present in the Internet Routing Table: 11169 Transit-only ASes present in the Internet Routing Table: 560 Paths with bogon ASNs present in the IPv4 Routing Table: 48 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 963 Number of instances of unregistered ASNs: 992 Number of 32-bit ASNs allocated by the RIRs: 47638 Number of 32-bit ASNs visible in the Routing Table: 39092 Prefixes from 32-bit ASNs in the Routing Table: 214627 Number of bogon 32-bit ASNs visible in the Routing Table: 70 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 294 Number of addresses announced to Internet: 3116222146 Equivalent to 185 /8s, 189 /16s and 198 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 333291 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281219 Total APNIC prefixes after maximum aggregation: 80585 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 271272 Unique aggregates announced from the APNIC address blocks: 106202 APNIC Region origin ASes present in the Internet Routing Table: 14909 APNIC Prefixes per ASN: 18.20 APNIC Region origin ASes announcing only one prefix: 4514 APNIC Region transit ASes present in the Internet Routing Table: 2008 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 42 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10398 Number of APNIC addresses announced to Internet: 756475456 Equivalent to 45 /8s, 22 /16s and 230 /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: 298458 Total ARIN prefixes after maximum aggregation: 133949 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 299512 Unique aggregates announced from the ARIN address blocks: 142954 ARIN Region origin ASes present in the Internet Routing Table: 19323 ARIN Prefixes per ASN: 15.50 ARIN Region origin ASes announcing only one prefix: 7084 ARIN Region transit ASes present in the Internet Routing Table: 1993 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 49 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5344 Number of ARIN addresses announced to Internet: 1351785473 Equivalent to 80 /8s, 146 /16s and 156 /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: 283935 Total RIPE prefixes after maximum aggregation: 138485 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 283572 Unique aggregates announced from the RIPE address blocks: 180674 RIPE Region origin ASes present in the Internet Routing Table: 29089 RIPE Prefixes per ASN: 9.75 RIPE Region origin ASes announcing only one prefix: 12082 RIPE Region transit ASes present in the Internet Routing Table: 4057 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12754 Number of RIPE addresses announced to Internet: 733062273 Equivalent to 43 /8s, 177 /16s and 164 /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: 126980 Total LACNIC prefixes after maximum aggregation: 30627 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 123108 Unique aggregates announced from the LACNIC address blocks: 49488 LACNIC Region origin ASes present in the Internet Routing Table: 11302 LACNIC Prefixes per ASN: 10.89 LACNIC Region origin ASes announcing only one prefix: 2643 LACNIC Region transit ASes present in the Internet Routing Table: 2526 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 42 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9265 Number of LACNIC addresses announced to Internet: 170784768 Equivalent to 10 /8s, 45 /16s and 248 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 35925 Total AfriNIC prefixes after maximum aggregation: 6881 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 49722 Unique aggregates announced from the AfriNIC address blocks: 16430 AfriNIC Region origin ASes present in the Internet Routing Table: 1964 AfriNIC Prefixes per ASN: 25.32 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 387 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1331 Number of AfriNIC addresses announced to Internet: 103925504 Equivalent to 6 /8s, 49 /16s and 199 /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 13815 8889 172 CHINAMOBILE-CN China Mobile Communication 7545 6171 834 593 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4875 4192 75 ERX-CERNET-BKB China Education and Resear 18403 4518 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4470 536 312 BBIL-AP BHARTI Airtel Ltd., IN 45899 4396 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3986 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3726 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3258 848 233 CMNET-JIANGSU-AP China Mobile communicati 24560 2925 862 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14322 40995 5389 AMAZON-02, US 174 4803 8766 793 COGENT-174, US 11492 4752 320 794 CABLEONE, US 22773 3973 3049 331 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3679 1320 82 SHAW, CA 396982 3267 4823 462 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3086 239 1716 USDA-1, US 16625 2932 1250 2181 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7428 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3954 372 2236 M247, RO 20940 3950 3395 139 AKAMAI-ASN1, NL 12389 3125 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2467 176 1791 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 5384 2396 585 28 EMIRATES-INTERNET Emirates Internet, AE 203020 1851 200 900 HOSTROYALE, IN 8452 1633 1852 14 TE-AS TE-AS, EG Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12380 3278 574 UNINET, MX 10620 3499 474 1068 Telmex Colombia S.A., CO 13999 2544 511 346 Mega Cable, S.A. de C.V., MX 11830 1989 369 64 Instituto Costarricense de Electricidad y 28573 1369 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 23 Telefonica del Peru S.A.A., PE 22884 1065 68 351 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1010 2486 56 TIM SA, BR 11172 918 148 65 Alestra, S. de R.L. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1770 616 28 RAYA-AS, EG 36992 1508 1498 383 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1188 102 53 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 950 520 42 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 572 82 3 KENET-AS, KE 15399 548 57 59 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14322 40995 5389 AMAZON-02, US 9808 13815 8889 172 CHINAMOBILE-CN China Mobile Communication 8151 12380 3278 574 UNINET, MX 12479 7428 1711 149 UNI2-AS, ES 7545 6171 834 593 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4875 4192 75 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 174 4803 8766 793 COGENT-174, US 11492 4752 320 794 CABLEONE, US 18403 4518 347 26 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13815 13643 CHINAMOBILE-CN China Mobile Communications Grou 8151 12380 11806 UNINET, MX 12479 7428 7279 UNI2-AS, ES 7545 6171 5578 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4875 4800 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4518 4492 FPT-AS-AP FPT Telecom Company, VN 45899 4396 4341 VNPT-AS-VN VNPT Corp, VN 9498 4470 4158 BBIL-AP BHARTI Airtel Ltd., IN 174 4803 4010 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, 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 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.146.204.0/24 Origin: 214696 UNCOLLAPSE-AS, US 23.146.204.0/24 Transit: 53667 PONYNET, US 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:41 /11:93 /12:302 /13:584 /14:1209 /15:2148 /16:13928 /17:8435 /18:14250 /19:25474 /20:46272 /21:53359 /22:114601 /23:107464 /24:638532 /25:143 /26:107 /27:114 /28:21 /29:64 /30:11 /31:1 /32:297 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6603 12380 UNINET, MX 12479 6394 7428 UNI2-AS, ES 11492 3565 4752 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3467 3679 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2524 3973 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2390 14322 AMAZON-02, US 30036 2290 2630 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3499 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2497 2:1619 3:947 4:12 5:4940 6:169 7:6 8:1560 9:6 11:172 12:1242 13:565 14:2706 15:401 16:304 17:393 18:909 20:585 21:4 22:188 23:7904 24:2701 25:2 27:2854 29:19 31:3444 32:35 33:1 34:85 35:271 36:4467 37:4592 38:10571 39:1098 40:295 41:4464 42:2034 43:2874 44:394 45:19174 46:5304 47:362 49:2059 50:2050 51:594 52:1594 54:359 55:1108 56:11 57:289 58:2368 59:1403 60:1218 61:3168 62:3101 63:1775 64:5681 65:2144 66:4974 67:3116 68:1097 69:4021 70:1036 71:640 72:2939 74:2850 75:1500 76:597 77:2776 78:1900 79:1764 80:2286 81:2128 82:3449 83:1519 84:1994 85:3527 86:1199 87:2393 88:1329 89:4523 90:809 91:8423 92:2846 93:3000 94:4298 95:4478 96:1514 97:310 98:952 99:738 100:71 101:1499 102:4352 103:32785 104:5368 105:1032 106:913 107:2665 108:1209 109:4278 110:2297 111:3836 112:2685 113:1916 114:2017 115:2406 116:2163 117:2982 118:3101 119:2091 120:2323 121:1435 122:2969 123:2497 124:1815 125:2938 126:93 128:1621 129:979 130:1300 131:2165 132:787 133:461 134:1614 135:366 136:1495 137:1267 138:2867 139:1683 140:1660 141:1544 142:2039 143:2067 144:1279 145:627 146:2196 147:2134 148:2743 149:2976 150:1290 151:2564 152:2178 153:640 154:7697 155:2062 156:3513 157:1996 158:1418 159:2602 160:3588 161:2003 162:3956 163:2310 164:2142 165:2579 166:1564 167:2109 168:3893 169:783 170:5414 171:1031 172:4247 173:3409 174:909 175:1380 176:3826 177:4890 178:4274 179:2371 180:2703 181:4283 182:3756 183:2556 184:2089 185:21763 186:5433 187:4806 188:4343 189:4480 190:9776 191:1572 192:11442 193:9503 194:7951 195:5760 196:3297 197:3359 198:6124 199:8730 200:8297 201:6422 202:11002 203:10862 204:4566 205:3617 206:4487 207:3601 208:4302 209:5340 210:5114 211:2904 212:4857 213:3904 214:1037 215:50 216:6930 217:3485 218:1632 219:615 220:2201 221:1239 222:1004 223:3077 End of report