Routing Table Report 08:00 +10GMT Mon 30 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 387679
Prefixes after maximum aggregation: 167021
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191629
Total ASes present in the Internet Routing Table: 37881
Prefixes per ASN: 10.23
Origin-only ASes present in the Internet Routing Table: 32619
Origin ASes announcing only one prefix: 15521
Transit ASes present in the Internet Routing Table: 5262
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1056
Unregistered ASNs in the Routing Table: 182
Number of 32-bit ASNs allocated by the RIRs: 2236
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4607
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 115
Number of addresses announced to Internet: 2529545984
Equivalent to 150 /8s, 197 /16s and 207 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 162806
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92048
Total APNIC prefixes after maximum aggregation: 30118
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89340
Unique aggregates announced from the APNIC address blocks: 39121
APNIC Region origin ASes present in the Internet Routing Table: 4592
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 634849024
Equivalent to 37 /8s, 215 /16s and 7 /24s
Percentage of available APNIC address space announced: 80.5
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: 146519
Total ARIN prefixes after maximum aggregation: 74626
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118898
Unique aggregates announced from the ARIN address blocks: 49205
ARIN Region origin ASes present in the Internet Routing Table: 14780
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5663
ARIN Region transit ASes present in the Internet Routing Table: 1499
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: 805108736
Equivalent to 47 /8s, 252 /16s and 252 /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: 97791
Total RIPE prefixes after maximum aggregation: 52159
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89736
Unique aggregates announced from the RIPE address blocks: 55908
RIPE Region origin ASes present in the Internet Routing Table: 16285
RIPE Prefixes per ASN: 5.51
RIPE Region origin ASes announcing only one prefix: 7998
RIPE Region transit ASes present in the Internet Routing Table: 2590
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498576896
Equivalent to 29 /8s, 183 /16s and 174 /24s
Percentage of available RIPE address space announced: 80.3
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: 36975
Total LACNIC prefixes after maximum aggregation: 7958
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36742
Unique aggregates announced from the LACNIC address blocks: 19360
LACNIC Region origin ASes present in the Internet Routing Table: 1556
LACNIC Prefixes per ASN: 23.61
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 282
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95747584
Equivalent to 5 /8s, 180 /16s and 254 /24s
Percentage of available LACNIC address space announced: 63.4
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: 9032
Total AfriNIC prefixes after maximum aggregation: 2090
AfriNIC Deaggregation factor: 4.32
Prefixes being announced from the AfriNIC address blocks: 7073
Unique aggregates announced from the AfriNIC address blocks: 2153
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 13.95
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 30872320
Equivalent to 1 /8s, 215 /16s and 19 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1909 11098 667 Korea Telecom (KIX)
7545 1641 303 88 TPG Internet Pty Ltd
17974 1635 503 35 PT Telekomunikasi Indonesia
4755 1512 385 157 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1119 81 483 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 981 1947 277 CNCGROUP IP network China169
18101 949 131 156 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 3447 3807 200 BellSouth.net Inc.
7029 3255 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1866 680 122 PaeTec Communications, Inc.
20115 1623 1552 628 Charter Communications
4323 1607 1078 384 tw telecom holdings, inc.
22773 1520 2910 109 Cox Communications Inc.
30036 1454 255 727 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1310 7042 858 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 1574 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 640 188 171 BILISIM TELEKOM
20940 589 192 465 Akamai Technologies European
8551 575 360 81 Bezeq International
12479 545 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 530 8161 396 Deutsche Telekom AG
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 1723 321 175 Types of queries are: POCs, o
28573 1631 1069 71 Types of queries are: POCs, o
8151 1312 2969 339 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
11172 689 111 73 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 552 238 91 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
6503 528 434 69 Axtel, S.A.B. de C.V.
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 1233 958 13 TEDATA
24863 830 155 41 LINKdotNET AS number
6713 487 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 232 12 18 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
16637 160 664 85 MTN Network Solutions
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 3447 3807 200 BellSouth.net Inc.
7029 3255 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1909 11098 667 Korea Telecom (KIX)
1785 1866 680 122 PaeTec Communications, Inc.
10620 1723 321 175 Types of queries are: POCs, o
7545 1641 303 88 TPG Internet Pty Ltd
17974 1635 503 35 PT Telekomunikasi Indonesia
28573 1631 1069 71 Types of queries are: POCs, o
20115 1623 1552 628 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3255 3042 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1866 1744 PaeTec Communications, Inc.
17974 1635 1600 PT Telekomunikasi Indonesia
28573 1631 1560 Types of queries are: POCs, o
8402 1574 1559 Corbina telecom
7545 1641 1553 TPG Internet Pty Ltd
10620 1723 1548 Types of queries are: POCs, o
22773 1520 1411 Cox Communications Inc.
4755 1512 1355 TATA Communications formerly
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.
25639 UNALLOCATED 12.41.169.0/24 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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 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 /8:20 /9:12 /10:27 /11:80 /12:233
/13:459 /14:816 /15:1458 /16:12076 /17:6138 /18:10189
/19:20327 /20:28014 /21:28611 /22:38945 /23:36523 /24:203202
/25:11 /26:21 /27:20 /28:154 /29:137 /30:66
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2861 3255 Windstream Communications Inc
6389 2117 3447 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1618 1723 Types of queries are: POCs, o
8402 1553 1574 Corbina telecom
30036 1413 1454 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1866 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
8452 1037 1233 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:510 2:440 4:14 5:1 6:3 8:377
12:1953 13:1 14:586 15:11 16:3 17:6
20:9 23:121 24:1718 27:1179 31:868 32:60
33:2 34:2 36:8 37:116 38:786 40:114
41:3201 42:88 44:3 46:1261 47:3 49:319
50:517 52:13 54:2 55:5 56:3 57:37
58:909 59:483 60:342 61:1083 62:923 63:1987
64:4103 65:2283 66:4400 67:2048 68:1169 69:3149
70:913 71:431 72:1801 74:2647 75:446 76:321
77:965 78:897 79:491 80:1210 81:873 82:566
83:531 84:583 85:1152 86:747 87:913 88:342
89:1529 90:258 91:4471 92:536 93:1538 94:1318
95:1105 96:408 97:306 98:801 99:38 100:20
101:130 103:687 106:3 107:140 108:129 109:1460
110:685 111:832 112:414 113:527 114:596 115:735
116:855 117:704 118:900 119:1231 120:353 121:652
122:1585 123:1059 124:1304 125:1311 128:469 129:183
130:206 131:588 132:146 133:21 134:224 135:59
136:211 137:150 138:284 139:144 140:461 141:258
142:360 143:353 144:499 145:68 146:482 147:227
148:674 149:270 150:159 151:193 152:440 153:170
154:6 155:412 156:207 157:336 158:154 159:437
160:328 161:220 162:336 163:178 164:528 165:393
166:559 167:458 168:763 169:146 170:834 171:117
172:4 173:1778 174:575 175:414 176:383 177:475
178:1235 180:1232 181:43 182:689 183:276 184:441
185:1 186:1511 187:832 188:973 189:1168 190:5393
192:5926 193:5483 194:4218 195:3388 196:1272 197:180
198:3538 199:4302 200:5599 201:1717 202:8201 203:8491
204:4267 205:2400 206:2661 207:2742 208:4019 209:3536
210:2674 211:1449 212:1993 213:1829 214:814 215:89
216:4951 217:1477 218:536 219:337 220:1219 221:541
222:294 223:257
End of report
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