Routing Table Report 08:00 +10GMT Mon 13 Dec, 2010
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 333070
Prefixes after maximum aggregation: 151766
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 166232
Total ASes present in the Internet Routing Table: 35285
Prefixes per ASN: 9.44
Origin-only ASes present in the Internet Routing Table: 30521
Origin ASes announcing only one prefix: 14925
Transit ASes present in the Internet Routing Table: 4764
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 827
Unregistered ASNs in the Routing Table: 326
Number of 32-bit ASNs allocated by the RIRs: 948
Prefixes from 32-bit ASNs in the Routing Table: 1429
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 187
Number of addresses announced to Internet: 2469039872
Equivalent to 147 /8s, 42 /16s and 143 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.6
Total number of prefixes smaller than registry allocations: 135491
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 79911
Total APNIC prefixes after maximum aggregation: 27255
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 77618
Unique aggregates announced from the APNIC address blocks: 34805
APNIC Region origin ASes present in the Internet Routing Table: 4218
APNIC Prefixes per ASN: 18.40
APNIC Region origin ASes announcing only one prefix: 1222
APNIC Region transit ASes present in the Internet Routing Table: 648
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 571570432
Equivalent to 34 /8s, 17 /16s and 121 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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, 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: 133948
Total ARIN prefixes after maximum aggregation: 68512
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 106777
Unique aggregates announced from the ARIN address blocks: 43836
ARIN Region origin ASes present in the Internet Routing Table: 13969
ARIN Prefixes per ASN: 7.64
ARIN Region origin ASes announcing only one prefix: 5365
ARIN Region transit ASes present in the Internet Routing Table: 1395
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 741781504
Equivalent to 44 /8s, 54 /16s and 176 /24s
Percentage of available ARIN address space announced: 62.3
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, 393216-394239
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, 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,
107/8, 108/8, 173/8, 174/8, 184/8, 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: 79412
Total RIPE prefixes after maximum aggregation: 45375
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 72901
Unique aggregates announced from the RIPE address blocks: 47157
RIPE Region origin ASes present in the Internet Routing Table: 15121
RIPE Prefixes per ASN: 4.82
RIPE Region origin ASes announcing only one prefix: 7764
RIPE Region transit ASes present in the Internet Routing Table: 2323
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 450791168
Equivalent to 26 /8s, 222 /16s and 135 /24s
Percentage of available RIPE address space announced: 74.6
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, 196608-197631
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,
176/8, 178/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 30523
Total LACNIC prefixes after maximum aggregation: 7047
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 29417
Unique aggregates announced from the LACNIC address blocks: 15453
LACNIC Region origin ASes present in the Internet Routing Table: 1390
LACNIC Prefixes per ASN: 21.16
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 240
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 78563072
Equivalent to 4 /8s, 174 /16s and 199 /24s
Percentage of available LACNIC address space announced: 58.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7176
Total AfriNIC prefixes after maximum aggregation: 1882
AfriNIC Deaggregation factor: 3.81
Prefixes being announced from the AfriNIC address blocks: 5499
Unique aggregates announced from the AfriNIC address blocks: 1751
AfriNIC Region origin ASes present in the Internet Routing Table: 421
AfriNIC Prefixes per ASN: 13.06
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 91
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21692928
Equivalent to 1 /8s, 75 /16s and 2 /24s
Percentage of available AfriNIC address space announced: 43.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1726 9453 516 Korea Telecom (KIX)
7545 1552 298 77 TPG Internet Pty Ltd
4755 1383 633 153 TATA Communications formerly
17974 1301 459 27 PT TELEKOMUNIKASI INDONESIA
17488 1083 158 113 Hathway IP Over Cable Interne
9583 1046 107 487 Sify Limited
24560 1038 311 173 Bharti Airtel Ltd., Telemedia
18101 906 116 136 Reliance Infocom Ltd Internet
4808 897 1623 252 CNCGROUP IP network: China169
9829 829 696 31 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3736 3871 272 bellsouth.net, inc.
4323 2640 1093 401 Time Warner Telecom
19262 1833 4853 281 Verizon Global Networks
1785 1794 697 131 PaeTec Communications, Inc.
20115 1513 1531 639 Charter Communications
6478 1428 289 69 AT&T Worldnet Services
7018 1379 5687 891 AT&T WorldNet Services
2386 1308 571 925 AT&T Data Communications Serv
11492 1256 234 73 Cable One
22773 1255 2863 73 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
9116 540 328 32 Goldenlines main autonomous s
6830 501 1763 309 UPC Distribution Services
3292 443 2010 385 TDC Tele Danmark
8866 434 133 23 Bulgarian Telecommunication C
9121 430 1690 29 TTnet Autonomous System
34984 422 92 191 BILISIM TELEKOM
9198 414 202 13 Kazakhtelecom Data Network Ad
702 404 1867 318 UUNET - Commercial IP service
8551 404 355 38 Bezeq International
12479 397 577 6 Uni2 Autonomous System
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1344 250 156 TVCABLE BOGOTA
8151 1221 2615 363 UniNet S.A. de C.V.
28573 1190 932 79 NET Servicos de Comunicao S.A
6503 1164 355 81 AVANTEL, S.A.
7303 805 440 94 Telecom Argentina Stet-France
14420 584 49 88 ANDINATEL S.A.
22047 563 310 15 VTR PUNTO NET S.A.
3816 492 214 101 Empresa Nacional de Telecomun
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 862 445 10 TEDATA
36992 646 275 157 Etisalat MISR
24863 598 147 37 LINKdotNET AS number
3741 263 986 225 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
24835 199 62 10 RAYA Telecom - Egypt
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 Tertiary Education Network
33776 184 12 14 Starcomms Nigeria Limited
36874 137 24 6 Cybersmart
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3736 3871 272 bellsouth.net, inc.
4323 2640 1093 401 Time Warner Telecom
19262 1833 4853 281 Verizon Global Networks
1785 1794 697 131 PaeTec Communications, Inc.
4766 1726 9453 516 Korea Telecom (KIX)
7545 1552 298 77 TPG Internet Pty Ltd
20115 1513 1531 639 Charter Communications
23456 1429 357 790 32-bit ASN transition
6478 1428 289 69 AT&T Worldnet Services
4755 1383 633 153 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2640 2239 Time Warner Telecom
1785 1794 1663 PaeTec Communications, Inc.
19262 1833 1552 Verizon Global Networks
7545 1552 1475 TPG Internet Pty Ltd
6478 1428 1359 AT&T Worldnet Services
17974 1301 1274 PT TELEKOMUNIKASI INDONESIA
4755 1383 1230 TATA Communications formerly
4766 1726 1210 Korea Telecom (KIX)
10620 1344 1188 TVCABLE BOGOTA
11492 1256 1183 Cable One
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
46164 UNALLOCATED 4.23.88.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.89.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.92.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.23.94.0/23 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.0.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.38.8.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.50.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.43.51.0/24 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.96.0/21 7018 AT&T WorldNet Servic
46164 UNALLOCATED 4.67.104.0/21 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/london/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 /8:28 /9:10 /10:25 /11:70 /12:211
/13:428 /14:749 /15:1341 /16:11324 /17:5490 /18:9170
/19:18689 /20:23915 /21:24095 /22:31588 /23:30444 /24:175052
/25:11 /26:17 /27:27 /28:152 /29:96 /30:39
/31:0 /32:99
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2307 3736 bellsouth.net, inc.
4323 1428 2640 Time Warner Telecom
6478 1385 1428 AT&T Worldnet Services
10620 1236 1344 TVCABLE BOGOTA
11492 1213 1256 Cable One
7011 1069 1172 Citizens Utilities
1785 1067 1794 PaeTec Communications, Inc.
18566 1043 1062 Covad Communications
19262 955 1833 Verizon Global Networks
6503 949 1164 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:128 2:16 4:13 5:1 8:316 12:2029
13:6 14:72 15:17 16:3 17:8 20:9
24:1420 27:482 32:58 33:6 34:2 36:1
37:1 38:713 40:101 41:2390 42:1 44:3
46:361 47:4 49:39 50:18 52:12 55:3
56:2 57:28 58:760 59:497 60:415 61:1012
62:1025 63:1928 64:3688 65:2312 66:4057 67:1756
68:1001 69:2824 70:713 71:389 72:1947 74:2278
75:287 76:320 77:854 78:741 79:436 80:1059
81:801 82:513 83:448 84:632 85:1040 86:496
87:715 88:405 89:1588 90:136 91:3307 92:459
93:1023 94:1092 95:694 96:401 97:246 98:700
99:33 101:3 107:2 108:69 109:787 110:468
111:660 112:301 113:311 114:461 115:639 116:976
117:657 118:584 119:1000 120:196 121:676 122:1570
123:1022 124:1214 125:1185 128:180 129:147 130:164
131:563 132:227 133:20 134:200 135:50 136:211
137:144 138:289 139:108 140:458 141:196 142:336
143:514 144:482 145:54 146:417 147:175 148:620
149:325 150:150 151:229 152:293 153:172 154:2
155:367 156:163 157:310 158:126 159:367 160:312
161:188 162:275 163:151 164:434 165:332 166:469
167:419 168:703 169:147 170:716 171:67 172:2
173:1132 174:464 175:274 176:1 178:627 180:724
182:507 183:240 184:189 186:891 187:761 188:873
189:1008 190:4249 192:5726 193:4787 194:3465 195:2883
196:1206 197:1 198:3466 199:3633 200:5490 201:1579
202:8002 203:8289 204:3943 205:2311 206:2426 207:2887
208:3849 209:3436 210:2494 211:1310 212:1871 213:1704
214:726 215:62 216:4740 217:1617 218:495 219:397
220:1185 221:399 222:312 223:75
End of report
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