The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, December 9, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Tue 10 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 470801
Prefixes after maximum aggregation: 188985
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235481
Total ASes present in the Internet Routing Table: 45573
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35477
Origin ASes announcing only one prefix: 16298
Transit ASes present in the Internet Routing Table: 5838
Transit-only ASes present in the Internet Routing Table: 159
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1107
Unregistered ASNs in the Routing Table: 300
Number of 32-bit ASNs allocated by the RIRs: 5480
Number of 32-bit ASNs visible in the Routing Table: 4258
Prefixes from 32-bit ASNs in the Routing Table: 13356
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1345
Number of addresses announced to Internet: 2656970240
Equivalent to 158 /8s, 94 /16s and 38 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163172

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110430
Total APNIC prefixes after maximum aggregation: 33574
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112680
Unique aggregates announced from the APNIC address blocks: 48145
APNIC Region origin ASes present in the Internet Routing Table: 4851
APNIC Prefixes per ASN: 23.23
APNIC Region origin ASes announcing only one prefix: 1229
APNIC Region transit ASes present in the Internet Routing Table: 814
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 780
Number of APNIC addresses announced to Internet: 729010944
Equivalent to 43 /8s, 115 /16s and 211 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162525
Total ARIN prefixes after maximum aggregation: 81573
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163352
Unique aggregates announced from the ARIN address blocks: 75704
ARIN Region origin ASes present in the Internet Routing Table: 15912
ARIN Prefixes per ASN: 10.27
ARIN Region origin ASes announcing only one prefix: 6013
ARIN Region transit ASes present in the Internet Routing Table: 1629
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 44
Number of ARIN addresses announced to Internet: 1072601344
Equivalent to 63 /8s, 238 /16s and 153 /24s
Percentage of available ARIN address space announced: 56.7

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119230
Total RIPE prefixes after maximum aggregation: 61134
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123084
Unique aggregates announced from the RIPE address blocks: 79096
RIPE Region origin ASes present in the Internet Routing Table: 17526
RIPE Prefixes per ASN: 7.02
RIPE Region origin ASes announcing only one prefix: 8291
RIPE Region transit ASes present in the Internet Routing Table: 2789
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2510
Number of RIPE addresses announced to Internet: 655986688
Equivalent to 39 /8s, 25 /16s and 144 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52735
Total LACNIC prefixes after maximum aggregation: 9883
LACNIC Deaggregation factor: 5.34
Prefixes being announced from the LACNIC address blocks: 57982
Unique aggregates announced from the LACNIC address blocks: 27387
LACNIC Region origin ASes present in the Internet Routing Table: 2046
LACNIC Prefixes per ASN: 28.34
LACNIC Region origin ASes announcing only one prefix: 555
LACNIC Region transit ASes present in the Internet Routing Table: 396
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 916
Number of LACNIC addresses announced to Internet: 146254848
Equivalent to 8 /8s, 183 /16s and 172 /24s
Percentage of available LACNIC address space announced: 87.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11714
Total AfriNIC prefixes after maximum aggregation: 2591
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12357
Unique aggregates announced from the AfriNIC address blocks: 4086
AfriNIC Region origin ASes present in the Internet Routing Table: 695
AfriNIC Prefixes per ASN: 17.78
AfriNIC Region origin ASes announcing only one prefix: 210
AfriNIC Region transit ASes present in the Internet Routing Table: 140
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48660736
Equivalent to 2 /8s, 230 /16s and 129 /24s
Percentage of available AfriNIC address space announced: 48.3

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2724 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 2112 319 110 TPG Internet Pty Ltd
4755 1796 392 190 TATA Communications formerly
9829 1536 1248 47 BSNL National Internet Backbo
9583 1329 103 542 Sify Limited
4808 1291 2195 371 CNCGROUP IP network: China169
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1173 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2299 2939 138 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2044 686 131 PaeTec Communications, Inc.
20115 1681 1657 596 Charter Communications
4323 1647 1098 418 Time Warner Telecom
701 1509 11144 782 MCI Communications Services,
30036 1371 308 578 Mediacom Communications Corp
7018 1333 17797 872 AT&T WorldNet Services
6983 1293 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1941 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1185 448 893 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 854 363 39 JSC UKRTELECOM,
8551 794 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3431 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1734 1161 230 Telecom Argentina Stet-France
18881 1721 908 20 Global Village Telecom
8151 1360 2855 422 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 817 93 88 Telconet S.A
6147 788 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 774 434 60 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 250 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3431 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2724 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2299 2939 138 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
7545 2112 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2044 686 131 PaeTec Communications, Inc.
8402 1941 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2724 2636 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2299 2161 Cox Communications, Inc.
7545 2112 2002 TPG Internet Pty Ltd
8402 1941 1925 OJSC "Vimpelcom"
1785 2044 1913 PaeTec Communications, Inc.
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1721 1701 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:928 /15:1630 /16:12818 /17:6738 /18:11210
/19:23131 /20:32949 /21:35637 /22:50144 /23:43737 /24:250968
/25:3 /26:5 /27:10 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1647 1941 OJSC "Vimpelcom"
22773 1550 2299 Cox Communications, Inc.
30036 1211 1371 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1084 2044 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:924 2:859 3:3 4:16 5:813 6:21
8:613 12:1879 13:3 14:897 15:11 16:3
17:19 18:19 20:25 23:611 24:1755 27:1707
31:1520 32:45 33:2 34:5 36:99 37:1943
38:915 39:5 40:181 41:3227 42:237 44:14
46:2080 47:10 49:686 50:857 52:12 54:44
55:5 56:4 57:26 58:1082 59:583 60:367
61:1486 62:1240 63:1973 64:4395 65:2331 66:4146
67:2118 68:1093 69:3285 70:904 71:505 72:2018
74:2576 75:324 76:293 77:1220 78:1018 79:670
80:1284 81:1042 82:629 83:754 84:585 85:1255
86:381 87:1035 88:537 89:1566 90:154 91:5715
92:620 93:1613 94:2112 95:1554 96:516 97:350
98:1088 99:41 100:33 101:691 103:3806 105:531
106:144 107:230 108:536 109:2011 110:976 111:1116
112:586 113:801 114:751 115:1043 116:1009 117:827
118:1231 119:1280 120:338 121:758 122:1869 123:1266
124:1351 125:1435 128:632 129:232 130:353 131:668
132:350 133:158 134:307 135:72 136:276 137:268
138:351 139:171 140:197 141:341 142:549 143:403
144:501 145:90 146:555 147:442 148:771 149:368
150:153 151:485 152:414 153:207 154:46 155:515
156:310 157:418 158:285 159:696 160:361 161:458
162:910 163:226 164:623 165:578 166:275 167:637
168:1043 169:124 170:1129 171:185 172:11 173:1639
174:661 175:540 176:1326 177:2529 178:1877 179:313
180:1583 181:878 182:1407 183:474 184:621 185:1108
186:2644 187:1453 188:1964 189:1257 190:7280 192:7076
193:5479 194:4029 195:3381 196:1328 197:1061 198:4754
199:5509 200:6027 201:2522 202:8947 203:8894 204:4525
205:2644 206:2891 207:2804 208:3964 209:3690 210:3008
211:1606 212:2175 213:1995 214:887 215:84 216:5416
217:1726 218:635 219:317 220:1265 221:587 222:332
223:540

End of report
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