Routing Table Report 08:00 +10GMT Thu 22 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 367414
Prefixes after maximum aggregation: 166125
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 184961
Total ASes present in the Internet Routing Table: 37267
Prefixes per ASN: 9.86
Origin-only ASes present in the Internet Routing Table: 32163
Origin ASes announcing only one prefix: 15485
Transit ASes present in the Internet Routing Table: 5104
Transit-only ASes present in the Internet Routing Table: 129
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) 22
Prefixes from unregistered ASNs in the Routing Table: 2694
Unregistered ASNs in the Routing Table: 839
Number of 32-bit ASNs allocated by the RIRs: 1757
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3270
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2496269312
Equivalent to 148 /8s, 202 /16s and 12 /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: 91.4
Total number of prefixes smaller than registry allocations: 152020
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88906
Total APNIC prefixes after maximum aggregation: 29432
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86377
Unique aggregates announced from the APNIC address blocks: 38188
APNIC Region origin ASes present in the Internet Routing Table: 4524
APNIC Prefixes per ASN: 19.09
APNIC Region origin ASes announcing only one prefix: 1269
APNIC Region transit ASes present in the Internet Routing Table: 685
Average APNIC Region AS path length visible: 3.9
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: 627266560
Equivalent to 37 /8s, 99 /16s and 84 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 142469
Total ARIN prefixes after maximum aggregation: 73243
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114868
Unique aggregates announced from the ARIN address blocks: 48123
ARIN Region origin ASes present in the Internet Routing Table: 14597
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5641
ARIN Region transit ASes present in the Internet Routing Table: 1478
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804878080
Equivalent to 47 /8s, 249 /16s and 119 /24s
Percentage of available ARIN address space announced: 64.0
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: 89289
Total RIPE prefixes after maximum aggregation: 50178
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 82081
Unique aggregates announced from the RIPE address blocks: 53928
RIPE Region origin ASes present in the Internet Routing Table: 15974
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2510
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489504512
Equivalent to 29 /8s, 45 /16s and 63 /24s
Percentage of available RIPE address space announced: 78.9
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: 34347
Total LACNIC prefixes after maximum aggregation: 7656
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 33803
Unique aggregates announced from the LACNIC address blocks: 17888
LACNIC Region origin ASes present in the Internet Routing Table: 1510
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 260
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: 89139712
Equivalent to 5 /8s, 80 /16s and 42 /24s
Percentage of available LACNIC address space announced: 59.0
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: 8423
Total AfriNIC prefixes after maximum aggregation: 2000
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6511
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.3
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: 27308288
Equivalent to 1 /8s, 160 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 40.7
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 1940 11040 649 Korea Telecom (KIX)
17974 1703 516 31 PT Telekomunikasi Indonesia
7545 1596 303 86 TPG Internet Pty Ltd
4755 1546 379 166 TATA Communications formerly
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1158 989 28 National Internet Backbone
9583 1084 80 501 Sify Limited
7552 1001 1062 11 Vietel Corporation
4808 958 2003 270 CNCGROUP IP network China169
18101 952 118 140 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 3561 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1828 680 123 PaeTec Communications, Inc.
7029 1740 1033 206 Windstream Communications Inc
4323 1624 1101 394 tw telecom holdings, inc.
20115 1594 1542 634 Charter Communications
22773 1457 2907 99 Cox Communications Inc.
30036 1425 265 678 Mediacom Communications Corp
19262 1393 4724 398 Verizon Online LLC
7018 1345 7084 881 AT&T Services, 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
8402 701 352 13 Corbina telecom
34984 564 108 180 BILISIM TELEKOM
20940 544 183 424 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
6830 523 1811 322 UPC Broadband
3320 492 8167 380 Deutsche Telekom AG
3292 478 2081 409 TDC Data Networks
12479 474 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
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 1679 309 156 Types of queries are: POCs, o
28573 1352 1013 70 Types of queries are: POCs, o
8151 1274 2785 350 Uninet S.A. de C.V.
7303 1156 678 170 Telecom Argentina S.A.
14420 734 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 Types of queries are: POCs, o
6503 567 450 69 Axtel, S.A.B. de C.V.
27947 557 56 76 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia 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 812 147 41 LINKdotNET AS number
8452 708 445 11 TEDATA
15475 449 74 8 Nile Online
36992 293 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
24835 182 70 11 RAYA Telecom - Egypt
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 3561 3817 227 BellSouth.net Inc.
23456 3270 775 1765 32-bit ASN transition
4766 1940 11040 649 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1828 680 123 PaeTec Communications, Inc.
7029 1740 1033 206 Windstream Communications Inc
17974 1703 516 31 PT Telekomunikasi Indonesia
10620 1679 309 156 Types of queries are: POCs, o
4323 1624 1101 394 tw telecom holdings, inc.
7545 1596 303 86 TPG Internet Pty Ltd
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 1828 1705 PaeTec Communications, Inc.
18566 1910 1675 Covad Communications Co.
17974 1703 1672 PT Telekomunikasi Indonesia
7029 1740 1534 Windstream Communications Inc
10620 1679 1523 Types of queries are: POCs, o
7545 1596 1510 TPG Internet Pty Ltd
23456 3270 1505 32-bit ASN transition
4755 1546 1380 TATA Communications formerly
22773 1457 1358 Cox Communications Inc.
4766 1940 1291 Korea Telecom (KIX)
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<<
46.18.104.0/21 23456 32-bit ASN transition
50.115.224.0/20 27257 Webair Internet Development C
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:464 /14:800 /15:1415 /16:11939 /17:5957 /18:9984
/19:19880 /20:26985 /21:26994 /22:36188 /23:34525 /24:191389
/25:12 /26:20 /27:22 /28:154 /29:121 /30:58
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3561 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
10620 1574 1679 Types of queries are: POCs, o
23456 1558 3270 32-bit ASN transition
7029 1421 1740 Windstream Communications Inc
30036 1382 1425 Mediacom Communications Corp
11492 1110 1147 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1053 1828 PaeTec Communications, Inc.
22773 946 1457 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:381 2:163 4:15 5:1 6:3 8:349
12:1955 13:1 14:531 15:13 16:3 17:7
20:10 23:35 24:1678 27:938 31:534 32:59
33:4 34:2 36:4 38:737 40:108 41:2545
42:48 44:3 46:983 47:3 49:244 50:421
52:13 54:2 55:7 56:2 57:34 58:828
59:489 60:374 61:1017 62:1087 63:1935 64:4025
65:2302 66:3963 67:1953 68:1108 69:3184 70:799
71:377 72:1857 74:2457 75:348 76:339 77:872
78:738 79:484 80:1128 81:844 82:512 83:501
84:626 85:1087 86:416 87:864 88:352 89:1559
90:266 91:4114 92:532 93:1230 94:1325 95:834
96:431 97:275 98:931 99:37 101:83 103:312
106:96 107:52 108:78 109:1020 110:638 111:774
112:314 113:426 114:550 115:668 116:878 117:670
118:856 119:1167 120:330 121:668 122:1595 123:995
124:1301 125:1334 128:206 129:172 130:159 131:576
132:112 133:21 134:207 135:53 136:205 137:136
138:288 139:106 140:471 141:278 142:371 143:405
144:478 145:59 146:464 147:215 148:617 149:250
150:145 151:190 152:446 153:177 154:5 155:394
156:202 157:328 158:144 159:393 160:324 161:198
162:336 163:166 164:506 165:372 166:535 167:433
168:743 169:144 170:857 171:84 172:1 173:1650
174:646 175:397 176:202 177:273 178:1012 180:1056
181:30 182:614 183:215 184:377 185:1 186:1456
187:671 188:943 189:852 190:5135 192:5869 193:5013
194:3527 195:3060 196:1240 197:168 198:3534 199:4076
200:5447 201:1633 202:8255 203:8363 204:4182 205:2311
206:2588 207:2755 208:4022 209:3433 210:2629 211:1462
212:2100 213:1762 214:784 215:76 216:4848 217:1590
218:543 219:334 220:1189 221:498 222:294 223:261
End of report
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