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 29 Nov, 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: 1039671 Prefixes after maximum aggregation (per Origin AS): 394969 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 504023 Number of IPv4 prefixes with a valid ROA: 603682 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 435970 Total ASes present in the Internet Routing Table: 77710 Prefixes per ASN: 13.38 Origin-only ASes present in the Internet Routing Table: 66506 Origin ASes announcing only one prefix: 27059 Transit ASes present in the Internet Routing Table: 11204 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 88 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 982 Number of instances of unregistered ASNs: 1029 Number of 32-bit ASNs allocated by the RIRs: 48096 Number of 32-bit ASNs visible in the Routing Table: 39422 Prefixes from 32-bit ASNs in the Routing Table: 220538 Number of bogon 32-bit ASNs visible in the Routing Table: 108 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 351 Number of addresses announced to Internet: 3106092961 Equivalent to 185 /8s, 35 /16s and 55 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 338603 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286560 Total APNIC prefixes after maximum aggregation: 81951 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 274432 Unique aggregates announced from the APNIC address blocks: 106641 APNIC Region origin ASes present in the Internet Routing Table: 14980 APNIC Prefixes per ASN: 18.32 APNIC Region origin ASes announcing only one prefix: 4536 APNIC Region transit ASes present in the Internet Routing Table: 2021 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10478 Number of APNIC addresses announced to Internet: 758443584 Equivalent to 45 /8s, 52 /16s and 238 /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: 301951 Total ARIN prefixes after maximum aggregation: 134468 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 301374 Unique aggregates announced from the ARIN address blocks: 145568 ARIN Region origin ASes present in the Internet Routing Table: 19386 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7106 ARIN Region transit ASes present in the Internet Routing Table: 1994 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5420 Number of ARIN addresses announced to Internet: 1337541120 Equivalent to 79 /8s, 185 /16s and 66 /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: 286347 Total RIPE prefixes after maximum aggregation: 140183 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 287168 Unique aggregates announced from the RIPE address blocks: 183631 RIPE Region origin ASes present in the Internet Routing Table: 29152 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12069 RIPE Region transit ASes present in the Internet Routing Table: 4041 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 46 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12860 Number of RIPE addresses announced to Internet: 735914753 Equivalent to 43 /8s, 221 /16s and 43 /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: 127371 Total LACNIC prefixes after maximum aggregation: 30796 LACNIC Deaggregation factor: 4.14 Prefixes being announced from the LACNIC address blocks: 123283 Unique aggregates announced from the LACNIC address blocks: 49660 LACNIC Region origin ASes present in the Internet Routing Table: 11315 LACNIC Prefixes per ASN: 10.90 LACNIC Region origin ASes announcing only one prefix: 2642 LACNIC Region transit ASes present in the Internet Routing Table: 2555 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9311 Number of LACNIC addresses announced to Internet: 170717792 Equivalent to 10 /8s, 44 /16s and 242 /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: 36460 Total AfriNIC prefixes after maximum aggregation: 6913 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53063 Unique aggregates announced from the AfriNIC address blocks: 18231 AfriNIC Region origin ASes present in the Internet Routing Table: 1990 AfriNIC Prefixes per ASN: 26.66 AfriNIC Region origin ASes announcing only one prefix: 706 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 6.0 Max AfriNIC Region AS path length visible: 65 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1353 Number of AfriNIC addresses announced to Internet: 103277056 Equivalent to 6 /8s, 39 /16s and 226 /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 13647 8889 170 CHINAMOBILE-CN China Mobile Communication 7545 6061 832 588 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4918 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4583 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4431 347 24 FPT-AS-AP FPT Telecom Company, VN 45899 4405 1874 54 VNPT-AS-VN VNPT Corp, VN 7552 4036 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3713 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3474 848 235 CMNET-JIANGSU-AP China Mobile communicati 24560 2943 865 498 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 14235 37207 5386 AMAZON-02, US 22773 4773 3099 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 174 4410 8766 833 COGENT-174, US 7155 3875 287 89 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3302 4861 480 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 2894 1239 2154 AKAMAI-AS, US 36352 2826 231 910 AS-COLOCROSSING, 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 7297 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4021 380 2287 M247, RO 20940 3898 3395 139 AKAMAI-ASN1, NL 12389 3176 2317 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2537 180 1835 CDNEXT, GB 34984 2420 363 577 TELLCOM-AS, TR 5384 2389 585 27 EMIRATES-INTERNET Emirates Internet, AE 8452 1699 1852 14 TE-AS TE-AS, EG 203020 1611 241 779 HOSTROYALE, IN 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 12670 3301 571 UNINET, MX 10620 3453 463 1107 Telmex Colombia S.A., CO 13999 2509 509 348 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1372 2432 263 Claro NXT Telecomunicacoes Ltda, BR 3816 1348 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1265 371 22 Telefonica del Peru S.A.A., PE 22884 1055 67 362 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 918 1127 31 TELEFONICA BRASIL S.A, BR 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 1986 630 32 RAYA-AS, EG 36992 1681 1508 399 ETISALAT-MISR, EG 24863 1264 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 36935 1086 520 31 Vodafone-, EG 37069 1085 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 568 82 3 KENET-AS, KE 15399 545 57 58 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 14235 37207 5386 AMAZON-02, US 9808 13647 8889 170 CHINAMOBILE-CN China Mobile Communication 8151 12670 3301 571 UNINET, MX 12479 7297 1711 149 UNI2-AS, ES 7545 6061 832 588 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4918 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4773 3099 366 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4583 541 335 BBIL-AP BHARTI Airtel Ltd., IN 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 13647 13477 CHINAMOBILE-CN China Mobile Communications Grou 8151 12670 12099 UNINET, MX 12479 7297 7148 UNI2-AS, ES 7545 6061 5473 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4918 4842 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4773 4407 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4431 4407 FPT-AS-AP FPT Telecom Company, VN 45899 4405 4351 VNPT-AS-VN VNPT Corp, VN 9498 4583 4248 BBIL-AP BHARTI Airtel Ltd., IN 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 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 100.107.254.0/24 45730 LINTASARTA-AS-ID Aplikanusa Lintasarta, PT, ID 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 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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 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 /11:94 /12:299 /13:583 /14:1207 /15:2115 /16:13824 /17:8464 /18:14218 /19:25609 /20:46545 /21:53557 /22:115048 /23:108458 /24:648807 /25:147 /26:111 /27:114 /28:39 /29:65 /30:9 /31:3 /32:284 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6851 12670 UNINET, MX 12479 6234 7297 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3048 4773 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2833 3875 VIASAT-SP-BACKBONE, US 16509 2433 14235 AMAZON-02, US 30036 2309 2652 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2208 3453 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) ---------------------------------------------- 1:2502 2:1632 3:971 4:12 5:5063 6:190 7:6 8:1535 9:6 11:172 12:1232 13:570 14:2671 15:413 16:303 17:392 18:914 20:602 21:4 22:188 23:8114 24:2608 25:2 27:2854 29:19 31:3485 32:35 33:1 34:85 35:288 36:4604 37:4564 38:10459 39:1197 40:457 41:4562 42:2009 43:2975 44:406 45:19754 46:5203 47:399 49:2179 50:2053 51:597 52:1568 54:288 55:1110 56:11 57:307 58:2406 59:1464 60:1215 61:3361 62:3129 63:1755 64:5984 65:2131 66:5955 67:3249 68:1498 69:4272 70:1023 71:627 72:2995 74:2952 75:1526 76:599 77:2770 78:1924 79:1792 80:2333 81:2101 82:3837 83:1510 84:2033 85:3649 86:1200 87:2319 88:1345 89:4637 90:844 91:8479 92:2906 93:3027 94:4347 95:4580 96:1488 97:312 98:958 99:773 100:68 101:1366 102:4457 103:32723 104:5509 105:1042 106:923 107:2808 108:1203 109:4310 110:2307 111:3976 112:2815 113:1969 114:2117 115:2355 116:2217 117:3167 118:3074 119:2174 120:2428 121:1595 122:2984 123:2795 124:1755 125:2958 126:125 128:1627 129:982 130:1524 131:2281 132:772 133:462 134:1616 135:396 136:1500 137:1287 138:2939 139:1676 140:1744 141:1548 142:2321 143:2132 144:1347 145:634 146:2192 147:2176 148:2792 149:2937 150:1318 151:2657 152:2284 153:696 154:9526 155:2256 156:4146 157:2201 158:1452 159:2679 160:3779 161:1995 162:4008 163:2343 164:1970 165:2604 166:1311 167:2143 168:3943 169:794 170:5520 171:1124 172:4481 173:3412 174:907 175:1384 176:3789 177:4837 178:4316 179:2365 180:2907 181:4341 182:3870 183:2601 184:2087 185:21806 186:5564 187:4826 188:4460 189:4566 190:9777 191:1606 192:11491 193:9511 194:8009 195:5781 196:3282 197:3307 198:6109 199:6098 200:8277 201:6444 202:10964 203:10877 204:4619 205:3688 206:4469 207:3787 208:4289 209:5422 210:5123 211:2878 212:4960 213:4031 214:1042 215:52 216:7154 217:3495 218:1651 219:625 220:2212 221:1285 222:1024 223:3219 End of report