Routing Table Report 08:00 +10GMT Thu 10 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 341064
Prefixes after maximum aggregation: 155102
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 170729
Total ASes present in the Internet Routing Table: 35668
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 30869
Origin ASes announcing only one prefix: 14970
Transit ASes present in the Internet Routing Table: 4799
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (22394) 20
Prefixes from unregistered ASNs in the Routing Table: 1425
Unregistered ASNs in the Routing Table: 256
Number of 32-bit ASNs allocated by the RIRs: 1092
Prefixes from 32-bit ASNs in the Routing Table: 1666
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2432513537
Equivalent to 144 /8s, 253 /16s and 54 /24s
Percentage of available address space announced: 65.6
Percentage of allocated address space announced: 65.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.2
Total number of prefixes smaller than registry allocations: 139606
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81931
Total APNIC prefixes after maximum aggregation: 27938
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79449
Unique aggregates announced from the APNIC address blocks: 35646
APNIC Region origin ASes present in the Internet Routing Table: 4267
APNIC Prefixes per ASN: 18.62
APNIC Region origin ASes announcing only one prefix: 1219
APNIC Region transit ASes present in the Internet Routing Table: 654
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 586564608
Equivalent to 34 /8s, 246 /16s and 68 /24s
Percentage of available APNIC address space announced: 74.4
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, 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: 136143
Total ARIN prefixes after maximum aggregation: 69770
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108969
Unique aggregates announced from the ARIN address blocks: 44753
ARIN Region origin ASes present in the Internet Routing Table: 14102
ARIN Prefixes per ASN: 7.73
ARIN Region origin ASes announcing only one prefix: 5394
ARIN Region transit ASes present in the Internet Routing Table: 1388
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 752418048
Equivalent to 44 /8s, 216 /16s and 253 /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,
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: 82042
Total RIPE prefixes after maximum aggregation: 46338
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75337
Unique aggregates announced from the RIPE address blocks: 48786
RIPE Region origin ASes present in the Internet Routing Table: 15281
RIPE Prefixes per ASN: 4.93
RIPE Region origin ASes announcing only one prefix: 7783
RIPE Region transit ASes present in the Internet Routing Table: 2354
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 458344961
Equivalent to 27 /8s, 81 /16s and 202 /24s
Percentage of available RIPE address space announced: 73.8
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: 31147
Total LACNIC prefixes after maximum aggregation: 7215
LACNIC Deaggregation factor: 4.32
Prefixes being announced from the LACNIC address blocks: 30078
Unique aggregates announced from the LACNIC address blocks: 15914
LACNIC Region origin ASes present in the Internet Routing Table: 1416
LACNIC Prefixes per ASN: 21.24
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 247
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80468736
Equivalent to 4 /8s, 203 /16s and 219 /24s
Percentage of available LACNIC address space announced: 53.3
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: 7458
Total AfriNIC prefixes after maximum aggregation: 1851
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5867
Unique aggregates announced from the AfriNIC address blocks: 1834
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21833984
Equivalent to 1 /8s, 77 /16s and 41 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1791 9485 519 Korea Telecom (KIX)
7545 1627 301 85 TPG Internet Pty Ltd
4755 1413 637 161 TATA Communications formerly
17974 1403 459 29 PT Telekomunikasi Indonesia
24560 1108 323 181 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
17488 952 162 104 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 927 117 142 Reliance Infocom Ltd Internet
9829 893 762 45 National Internet Backbone
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 3714 3855 266 BellSouth.net Inc.
4323 2622 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
1785 1789 697 132 PaeTec Communications, Inc.
20115 1527 1534 643 Charter Communications
6478 1494 296 75 AT&T Services, Inc.
7018 1371 6708 888 AT&T Services, Inc.
2386 1299 554 936 AT&T Data Communications Serv
22773 1275 2865 78 Cox Communications Inc.
11492 1265 235 79 CABLE ONE, 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 542 328 31 Goldenlines main autonomous s
6830 513 1764 318 UPC Broadband
9198 465 266 14 Kazakhtelecom Data Network Ad
34984 456 97 137 BILISIM TELEKOM
3292 444 1996 387 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
8551 405 355 38 Bezeq International
3320 404 7617 352 Deutsche Telekom AG
20940 404 94 311 Akamai Technologies European
702 400 1803 313 >>UNKNOWN<<
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 1374 255 164 Types of queries are: POCs, o
28573 1221 961 82 Types of queries are: POCs, o
8151 1207 2629 357 Uninet S.A. de C.V.
6503 1178 355 79 Axtel, S.A.B. de C.V.
7303 858 446 120 Telecom Argentina S.A.
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 504 220 95 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 462 35 37 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 780 445 11 TEDATA
24863 759 147 37 LINKdotNET AS number
36992 594 313 20 Etisalat MISR
3741 264 987 226 The Internet Solution
24835 218 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
16637 147 422 84 MTN Network Solutions
29975 132 490 17 Vodacom
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 3714 3855 266 BellSouth.net Inc.
4323 2622 1125 404 tw telecom holdings, inc.
19262 1842 4951 283 Verizon Online LLC
4766 1791 9485 519 Korea Telecom (KIX)
1785 1789 697 132 PaeTec Communications, Inc.
23456 1666 422 940 32-bit ASN transition
7545 1627 301 85 TPG Internet Pty Ltd
20115 1527 1534 643 Charter Communications
6478 1494 296 75 AT&T Services, Inc.
4755 1413 637 161 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 2622 2218 tw telecom holdings, inc.
1785 1789 1657 PaeTec Communications, Inc.
19262 1842 1559 Verizon Online LLC
7545 1627 1542 TPG Internet Pty Ltd
6478 1494 1419 AT&T Services, Inc.
17974 1403 1374 PT Telekomunikasi Indonesia
4766 1791 1272 Korea Telecom (KIX)
4755 1413 1252 TATA Communications formerly
10620 1374 1210 Types of queries are: POCs, o
22773 1275 1197 Cox Communications 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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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 Comcast Cable Communications,
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
39.0.0.0/8 237 Merit Network Inc.
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /8:22 /9:11 /10:26 /11:72 /12:222
/13:445 /14:769 /15:1370 /16:11517 /17:5617 /18:9295
/19:18915 /20:24328 /21:24642 /22:32820 /23:31418 /24:179123
/25:11 /26:17 /27:24 /28:155 /29:91 /30:43
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2291 3714 BellSouth.net Inc.
6478 1448 1494 AT&T Services, Inc.
4323 1410 2622 tw telecom holdings, inc.
10620 1265 1374 Types of queries are: POCs, o
11492 1222 1265 CABLE ONE, INC.
18566 1172 1194 Covad Communications Co.
7011 1062 1165 Frontier Communications of Am
1785 1055 1789 PaeTec Communications, Inc.
23456 972 1666 32-bit ASN transition
6503 955 1178 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:171 2:42 4:13 5:1 8:333 12:2027
13:1 14:400 15:15 16:3 17:8 20:9
23:1 24:1471 27:575 32:57 33:5 34:2
37:1 38:697 40:101 41:2289 44:3 46:571
47:5 49:144 50:82 52:12 55:5 56:2
57:29 58:763 59:481 60:389 61:1018 62:1091
63:1935 64:3729 65:2356 66:4138 67:1763 68:1007
69:2906 70:713 71:396 72:1997 73:1 74:2323
75:293 76:342 77:866 78:699 79:442 80:1043
81:824 82:538 83:474 84:646 85:1048 86:535
87:753 88:357 89:1568 90:156 91:3474 92:495
93:1031 94:1200 95:758 96:421 97:250 98:788
99:33 101:27 107:3 108:86 109:910 110:471
111:690 112:302 113:343 114:476 115:635 116:915
117:672 118:654 119:1010 120:237 121:680 122:1626
123:1060 124:1263 125:1215 128:212 129:147 130:168
131:564 132:102 133:20 134:210 135:49 136:213
137:144 138:290 139:115 140:467 141:196 142:341
143:383 144:483 145:51 146:424 147:199 148:615
149:273 150:159 151:230 152:303 153:177 154:2
155:348 156:173 157:313 158:129 159:373 160:314
161:195 162:270 163:151 164:486 165:336 166:497
167:421 168:735 169:149 170:740 171:68 172:2
173:1280 174:518 175:314 176:1 177:4 178:790
180:783 182:332 183:251 184:208 186:999 187:814
188:908 189:1045 190:4354 192:5745 193:4793 194:3497
195:2939 196:1176 197:3 198:3495 199:3748 200:5566
201:1572 202:8029 203:8333 204:4040 205:2315 206:2530
207:3001 208:3889 209:3476 210:2599 211:1323 212:1872
213:1724 214:763 215:62 216:4871 217:1606 218:519
219:373 220:1196 221:433 222:315 223:92
End of report
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