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.

Thursday, November 7, 2013

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

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Fri 08 Nov, 2013

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

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

BGP routing table entries examined: 467048
Prefixes after maximum aggregation: 187989
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 233565
Total ASes present in the Internet Routing Table: 45331
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 35372
Origin ASes announcing only one prefix: 16302
Transit ASes present in the Internet Routing Table: 5844
Transit-only ASes present in the Internet Routing Table: 155
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 816
Unregistered ASNs in the Routing Table: 219
Number of 32-bit ASNs allocated by the RIRs: 5306
Number of 32-bit ASNs visible in the Routing Table: 4115
Prefixes from 32-bit ASNs in the Routing Table: 12858
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 979
Number of addresses announced to Internet: 2647398912
Equivalent to 157 /8s, 204 /16s and 26 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161916

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

Prefixes being announced by APNIC Region ASes: 108942
Total APNIC prefixes after maximum aggregation: 33129
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111077
Unique aggregates announced from the APNIC address blocks: 47198
APNIC Region origin ASes present in the Internet Routing Table: 4852
APNIC Prefixes per ASN: 22.89
APNIC Region origin ASes announcing only one prefix: 1244
APNIC Region transit ASes present in the Internet Routing Table: 808
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 728
Number of APNIC addresses announced to Internet: 723519744
Equivalent to 43 /8s, 32 /16s and 9 /24s
Percentage of available APNIC address space announced: 84.6

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: 162172
Total ARIN prefixes after maximum aggregation: 81391
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163160
Unique aggregates announced from the ARIN address blocks: 75916
ARIN Region origin ASes present in the Internet Routing Table: 15908
ARIN Prefixes per ASN: 10.26
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: 20
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1073102336
Equivalent to 63 /8s, 246 /16s and 62 /24s
Percentage of available ARIN address space announced: 56.8

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, 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: 118538
Total RIPE prefixes after maximum aggregation: 60878
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122168
Unique aggregates announced from the RIPE address blocks: 78676
RIPE Region origin ASes present in the Internet Routing Table: 17492
RIPE Prefixes per ASN: 6.98
RIPE Region origin ASes announcing only one prefix: 8296
RIPE Region transit ASes present in the Internet Routing Table: 2813
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2459
Number of RIPE addresses announced to Internet: 656439552
Equivalent to 39 /8s, 32 /16s and 121 /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: 52244
Total LACNIC prefixes after maximum aggregation: 9848
LACNIC Deaggregation factor: 5.31
Prefixes being announced from the LACNIC address blocks: 57394
Unique aggregates announced from the LACNIC address blocks: 26914
LACNIC Region origin ASes present in the Internet Routing Table: 2036
LACNIC Prefixes per ASN: 28.19
LACNIC Region origin ASes announcing only one prefix: 553
LACNIC Region transit ASes present in the Internet Routing Table: 392
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 888
Number of LACNIC addresses announced to Internet: 142672384
Equivalent to 8 /8s, 129 /16s and 2 /24s
Percentage of available LACNIC address space announced: 85.0

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: 11620
Total AfriNIC prefixes after maximum aggregation: 2604
AfriNIC Deaggregation factor: 4.46
Prefixes being announced from the AfriNIC address blocks: 12269
Unique aggregates announced from the AfriNIC address blocks: 4067
AfriNIC Region origin ASes present in the Internet Routing Table: 677
AfriNIC Prefixes per ASN: 18.12
AfriNIC Region origin ASes announcing only one prefix: 196
AfriNIC Region transit ASes present in the Internet Routing Table: 132
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: 6
Number of AfriNIC addresses announced to Internet: 48100608
Equivalent to 2 /8s, 221 /16s and 245 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2714 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2137 11550 644 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
4755 1787 391 188 TATA Communications formerly
9829 1554 1242 46 BSNL National Internet Backbo
4808 1286 2189 364 CNCGROUP IP network: China169
9498 1211 309 74 BHARTI Airtel Ltd.
9583 1190 91 513 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1094 380 163 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 3054 3688 56 BellSouth.net Inc.
22773 2193 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
20115 1683 1654 608 Charter Communications
4323 1640 1102 422 Time Warner Telecom
701 1505 11146 783 MCI Communications Services,
30036 1385 313 576 Mediacom Communications Corp
7018 1348 17796 882 AT&T WorldNet Services
6983 1294 756 579 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 1935 544 17 OJSC "Vimpelcom"
34984 1363 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1130 414 864 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
8551 781 370 41 Bezeq International
6830 775 2328 427 UPC Distribution Services
12479 675 798 55 Uni2 Autonomous System
35228 542 246 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 3443 1786 86 NET Servicos de Comunicao S.A
10620 2641 428 237 TVCABLE BOGOTA
7303 1727 1146 232 Telecom Argentina Stet-France
18881 1541 908 20 Global Village Telecom
8151 1355 2853 412 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 813 93 89 Telconet S.A
6503 785 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A
26615 748 1749 26 Tim Brasil 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 852 338 34 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 410 956 9 TEDATA
3741 256 921 214 The Internet Solution
24835 235 144 9 RAYA Telecom - Egypt
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
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 3443 1786 86 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2714 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2641 428 237 TVCABLE BOGOTA
22773 2193 2939 138 Cox Communications, Inc.
4766 2137 11550 644 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
8402 1935 544 17 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 3054 2998 BellSouth.net Inc.
17974 2714 2625 PT TELEKOMUNIKASI INDONESIA
10620 2641 2404 TVCABLE BOGOTA
22773 2193 2055 Cox Communications, Inc.
7545 2100 1989 TPG Internet Pty Ltd
8402 1935 1918 OJSC "Vimpelcom"
1785 2028 1902 PaeTec Communications, Inc.
18566 2056 1878 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
4755 1787 1599 TATA Communications formerly

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.
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio
62734 UNALLOCATED 8.31.128.0/24 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.
23.90.192.0/18 36086 Broad Communications Technolo
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
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 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 /10:30 /11:92 /12:254
/13:474 /14:916 /15:1603 /16:12768 /17:6701 /18:11185
/19:23008 /20:32686 /21:35475 /22:49544 /23:43529 /24:248724
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

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

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1604 1935 OJSC "Vimpelcom"
22773 1456 2193 Cox Communications, Inc.
30036 1231 1385 Mediacom Communications Corp
11492 1191 1231 Cable One
1785 1080 2028 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 968 1245 Digital Teleport, Inc

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

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

1:883 2:857 3:3 4:17 5:1022 6:21
8:615 12:1901 13:3 14:893 15:11 16:3
17:18 18:19 20:21 23:521 24:1735 27:1604
31:1496 32:45 33:2 34:5 36:83 37:1905
38:921 39:4 40:178 41:3222 42:232 44:14
46:2014 47:10 49:686 50:829 52:12 54:42
55:8 56:4 57:26 58:1086 59:573 60:375
61:1464 62:1226 63:1987 64:4355 65:2341 66:4145
67:2094 68:1107 69:3283 70:869 71:490 72:2039
74:2557 75:328 76:295 77:1164 78:1045 79:659
80:1293 81:1034 82:655 83:629 84:583 85:1236
86:383 87:1011 88:563 89:1553 90:150 91:5639
92:618 93:1607 94:2018 95:1618 96:511 97:345
98:1046 99:39 100:30 101:626 103:3536 105:527
106:131 107:211 108:534 109:1935 110:969 111:1112
112:584 113:808 114:751 115:1040 116:1000 117:826
118:1173 119:1262 120:360 121:748 122:1832 123:1248
124:1322 125:1437 128:673 129:229 130:329 131:656
132:365 133:157 134:555 135:67 136:279 137:268
138:350 139:177 140:189 141:333 142:541 143:401
144:493 145:88 146:526 147:404 148:777 149:368
150:138 151:587 152:410 153:206 154:52 155:490
156:289 157:424 158:277 159:688 160:360 161:457
162:830 163:226 164:631 165:585 166:258 167:634
168:1046 169:125 170:1118 171:182 172:27 173:1587
174:686 175:514 176:1304 177:2422 178:1958 179:206
180:1580 181:823 182:1337 183:462 184:673 185:999
186:2657 187:1487 188:1856 189:1288 190:7101 192:7104
193:5419 194:4042 195:3358 196:1334 197:1049 198:4725
199:5486 200:6075 201:2481 202:8896 203:8846 204:4535
205:2647 206:2841 207:2832 208:3978 209:3656 210:2932
211:1558 212:2140 213:1982 214:896 215:91 216:5412
217:1685 218:626 219:321 220:1274 221:568 222:326
223:504

End of report
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