Routing Table Report 08:00 +10GMT Wed 20 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358157
Prefixes after maximum aggregation: 163572
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180766
Total ASes present in the Internet Routing Table: 36796
Prefixes per ASN: 9.73
Origin-only ASes present in the Internet Routing Table: 31738
Origin ASes announcing only one prefix: 15278
Transit ASes present in the Internet Routing Table: 5058
Transit-only ASes present in the Internet Routing Table: 122
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2306
Unregistered ASNs in the Routing Table: 623
Number of 32-bit ASNs allocated by the RIRs: 1570
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2907
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2495705856
Equivalent to 148 /8s, 193 /16s and 115 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 147707
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86255
Total APNIC prefixes after maximum aggregation: 29006
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83872
Unique aggregates announced from the APNIC address blocks: 37549
APNIC Region origin ASes present in the Internet Routing Table: 4463
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 676
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 621691392
Equivalent to 37 /8s, 14 /16s and 66 /24s
Percentage of available APNIC address space announced: 78.8
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, 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, 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: 140181
Total ARIN prefixes after maximum aggregation: 72503
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112390
Unique aggregates announced from the ARIN address blocks: 46627
ARIN Region origin ASes present in the Internet Routing Table: 14411
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5528
ARIN Region transit ASes present in the Internet Routing Table: 1455
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802531328
Equivalent to 47 /8s, 213 /16s and 168 /24s
Percentage of available ARIN address space announced: 63.8
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, 45/8, 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, 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: 87005
Total RIPE prefixes after maximum aggregation: 49303
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80392
Unique aggregates announced from the RIPE address blocks: 52916
RIPE Region origin ASes present in the Internet Routing Table: 15801
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7888
RIPE Region transit ASes present in the Internet Routing Table: 2487
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 479610624
Equivalent to 28 /8s, 150 /16s and 71 /24s
Percentage of available RIPE address space announced: 77.3
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
196608-198655
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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 32795
Total LACNIC prefixes after maximum aggregation: 7512
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32277
Unique aggregates announced from the LACNIC address blocks: 17082
LACNIC Region origin ASes present in the Internet Routing Table: 1474
LACNIC Prefixes per ASN: 21.90
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 259
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 86093312
Equivalent to 5 /8s, 33 /16s and 174 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8319
Total AfriNIC prefixes after maximum aggregation: 2029
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6477
Unique aggregates announced from the AfriNIC address blocks: 1995
AfriNIC Region origin ASes present in the Internet Routing Table: 476
AfriNIC Prefixes per ASN: 13.61
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24494848
Equivalent to 1 /8s, 117 /16s and 195 /24s
Percentage of available AfriNIC address space announced: 36.5
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1910 11036 633 Korea Telecom (KIX)
7545 1551 301 83 TPG Internet Pty Ltd
17974 1543 456 46 PT Telekomunikasi Indonesia
4755 1501 375 168 TATA Communications formerly
24560 1155 336 187 Bharti Airtel Ltd., Telemedia
9829 1106 923 47 National Internet Backbone
9583 1062 77 503 Sify Limited
17488 964 187 106 Hathway IP Over Cable Interne
4808 947 2003 274 CNCGROUP IP network China169
18101 933 116 139 Reliance Infocom Ltd Internet
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 3605 3818 240 BellSouth.net Inc.
18566 1911 364 239 Covad Communications Co.
1785 1813 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1587 1535 625 Charter Communications
19262 1410 4744 390 Verizon Online LLC
7029 1388 1031 209 Windstream Communications Inc
7018 1378 7102 904 AT&T Services, Inc.
22773 1350 2897 89 Cox Communications Inc.
2386 1259 521 907 AT&T Data Communications Serv
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 540 326 31 Goldenlines main autonomous s
6830 509 1780 315 UPC Broadband
34984 504 101 205 BILISIM TELEKOM
3292 468 2078 403 TDC Data Networks
20940 459 131 355 Akamai Technologies European
12479 458 593 7 France Telecom Espana SA
8866 450 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1557 286 164 Types of queries are: POCs, o
28573 1263 995 77 Types of queries are: POCs, o
8151 1254 2728 350 Uninet S.A. de C.V.
7303 986 511 165 Telecom Argentina S.A.
6503 738 354 74 Axtel, S.A.B. de C.V.
14420 699 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 499 54 48 Telconet 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
24863 790 147 34 LINKdotNET AS number
8452 770 445 11 TEDATA
15475 511 74 8 Nile Online
36992 317 415 15 Etisalat MISR
3741 262 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
15706 149 32 6 Sudatel Internet Exchange Aut
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 3605 3818 240 BellSouth.net Inc.
23456 2907 706 1566 32-bit ASN transition
18566 1911 364 239 Covad Communications Co.
4766 1910 11036 633 Korea Telecom (KIX)
1785 1813 681 122 PaeTec Communications, Inc.
4323 1615 1098 402 tw telecom holdings, inc.
20115 1587 1535 625 Charter Communications
10620 1557 286 164 Types of queries are: POCs, o
7545 1551 301 83 TPG Internet Pty Ltd
17974 1543 456 46 PT Telekomunikasi Indonesia
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1813 1691 PaeTec Communications, Inc.
18566 1911 1672 Covad Communications Co.
17974 1543 1497 PT Telekomunikasi Indonesia
7545 1551 1468 TPG Internet Pty Ltd
10620 1557 1393 Types of queries are: POCs, o
23456 2907 1341 32-bit ASN transition
4755 1501 1333 TATA Communications formerly
4766 1910 1277 Korea Telecom (KIX)
22773 1350 1261 Cox Communications Inc.
4323 1615 1213 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
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 65535 Internet Assigned Numbers Aut
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:21 /9:12 /10:26 /11:80 /12:233
/13:464 /14:794 /15:1397 /16:11981 /17:5864 /18:9766
/19:19604 /20:25910 /21:26112 /22:34529 /23:33317 /24:187536
/25:12 /26:19 /27:23 /28:161 /29:107 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2223 3605 BellSouth.net Inc.
18566 1867 1911 Covad Communications Co.
10620 1452 1557 Types of queries are: POCs, o
23456 1431 2907 32-bit ASN transition
11492 1092 1138 CABLE ONE, INC.
7029 1068 1388 Windstream Communications Inc
7011 1056 1158 Frontier Communications of Am
1785 1055 1813 PaeTec Communications, Inc.
6478 1013 1042 AT&T Services, Inc.
22773 865 1350 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:329 2:46 4:16 5:1 6:3 8:337
12:1961 13:1 14:479 15:15 16:3 17:5
20:10 23:14 24:1673 27:832 31:501 32:59
33:4 34:2 36:4 38:744 40:104 41:2539
42:34 44:3 46:1041 47:3 49:201 50:380
52:13 54:2 55:4 56:2 57:35 58:815
59:475 60:385 61:1019 62:1038 63:1925 64:3939
65:2296 66:3856 67:1874 68:1097 69:3040 70:755
71:386 72:1886 74:2409 75:317 76:340 77:888
78:712 79:475 80:1114 81:843 82:502 83:457
84:690 85:1062 86:519 87:767 88:337 89:1538
90:224 91:3970 92:523 93:1056 94:1349 95:858
96:413 97:263 98:891 99:37 101:75 103:140
106:73 107:22 108:72 109:1019 110:605 111:707
112:298 113:401 114:552 115:663 116:952 117:666
118:818 119:1156 120:313 121:652 122:1600 123:963
124:1267 125:1228 128:208 129:165 130:164 131:573
132:103 133:21 134:205 135:48 136:214 137:135
138:298 139:114 140:458 141:246 142:387 143:414
144:484 145:55 146:448 147:216 148:602 149:248
150:154 151:189 152:340 153:182 154:3 155:394
156:196 157:322 158:137 159:386 160:311 161:194
162:307 163:151 164:504 165:365 166:530 167:434
168:733 169:151 170:845 171:78 172:1 173:1600
174:597 175:368 176:144 177:171 178:988 180:885
181:23 182:490 183:233 184:346 185:1 186:1290
187:741 188:884 189:943 190:4938 192:5857 193:4996
194:3519 195:3049 196:1209 197:43 198:3523 199:3931
200:5491 201:1468 202:8203 203:8355 204:4152 205:2313
206:2584 207:2739 208:3979 209:3398 210:2598 211:1443
212:2108 213:1768 214:765 215:68 216:4891 217:1670
218:532 219:343 220:1196 221:480 222:312 223:216
End of report
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